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1. Single-pulse Gy-scale irradiation of biological cells at $10^{13}$ Gy/s average dose-rates from a laser-wakefield accelerator

Author

McAnespie, C. A., Chaudhary, P., Streeter, M. J. V., Botchway, S. W., Bourgeois, N., Calvin, L., Cavanagh, N., Fleck, K., Jaroszynski, D., Kettle, B., Lupu, A. M., Mangles, S. P. D., McMahon, S. J., Mill, J., Needham, S. R., Rajeev, P. P., Sarma, J., Prise, K. M., and Sarri, G.

Subjects
Physics - Medical Physics, Physics - Plasma Physics
Abstract

We report on the first experimental characterization of a laser-wakefield accelerator able to deliver, in a single pulse, doses in excess of \unit[1]{Gy} on timescales of the order of a hundred femtoseconds, reaching unprecedented average dose-rates up to \unit[10$^{13}$]{Gy/s}. The irradiator is demonstrated to deliver doses tuneable up to \unit[2.2]{Gy} in a cm$^2$ area and with a high degree of longitudinal and transverse uniformity in a single irradiation. In this regime, proof-of-principle irradiation of patient-derived glioblastoma stem-like cells and human skin fibroblast cells show indications of a differential cellular response, when compared to reference irradiations at conventional dose-rates. These include a statistically significant increase in relative biological effectiveness ($1.40\pm0.08$ at 50\% survival for both cell lines) and a significant reduction of the relative radioresistance of tumour cells. Data analysis provides preliminary indications that these effects might not be fully explained by induced oxygen depletion in the cells but may be instead linked to a higher complexity of the damages triggered by the ultra-high density of ionising tracks of femtosecond-scale radiation pulses. These results demonstrate an integrated platform for systematic radiobiological studies at unprecedented beam durations and dose-rates, a unique infrastructure for translational research in radiobiology at the femtosecond scale., Comment: 29 pages, 11 figures, Paper submission

Published
2024

2. Observation of quantum effects on radiation reaction in strong fields

Author

Los, E. E., Gerstmayr, E., Arran, C., Streeter, M. J. V., Colgan, C., Cobo, C. C., Kettle, B., Blackburn, T. G., Bourgeois, N., Calvin, L., Carderelli, J., Cavanagh, N., Di Piazza, S. J. D. Dann A., Fitzgarrald, R., Ilderton, A., Keitel, C. H., Marklund, M., McKenna, P., Murphy, C. D., Najmudin, Z., Parsons, P., Rajeev, P. P., Symes, D. R., Tamburini, M., Thomas, A. G. R., Wood, J. C., Zepf, M., Sarri, G., Ridgers, C. P., and Mangles, S. P. D

Subjects
High Energy Physics - Phenomenology, Physics - Plasma Physics
Abstract

Radiation reaction describes the effective force experienced by an accelerated charge due to radiation emission. Quantum effects dominate charge dynamics and radiation production[1][2] for charges accelerated by fields with strengths approaching the Schwinger field, $\mathbf{E_{sch}=}$\textbf{\SI[detect-weight]{1.3e18}{\volt\per\metre}[3]. Such fields exist in extreme astrophysical environments such as pulsar magnetospheres[4], may be accessed by high-power laser systems[5-7], dense particle beams interacting with plasma[8], crystals[9], and at the interaction point of next generation particle colliders[10]. Classical radiation reaction theories do not limit the frequency of radiation emitted by accelerating charges and omit stochastic effects inherent in photon emission[11], thus demanding a quantum treatment. Two quantum radiation reaction models, the quantum-continuous[12] and quantum-stochastic[13] models, correct the former issue, while only the quantum-stochastic model incorporates stochasticity[12]. Such models are of fundamental importance, providing insight into the effect of the electron self-force on its dynamics in electromagnetic fields. The difficulty of accessing conditions where quantum effects dominate inhibited previous efforts to observe quantum radiation reaction in charged particle dynamics with high significance. We report the first direct, high significance $(>5{\sigma})$ observation of strong-field radiation reaction on charged particles. Furthermore, we obtain strong evidence favouring the quantum radiation reaction models, which perform equivalently, over the classical model. Robust model comparison was facilitated by a novel Bayesian framework which inferred collision parameters. This framework has widespread utility for experiments where parameters governing lepton-laser collisions cannot be directly measured, including those using conventional accelerators., Comment: 31 pages, 14 figures

Published
2024

3. All-optical GeV electron bunch generation in a laser-plasma accelerator via truncated-channel injection

Author

Picksley, A., Chappell, J., Archer, E., Bourgeois, N., Cowley, J., Emerson, D. R., Feder, L., Gu, X. J., Jakobsson, O., Ross, A. J., Wang, W., Walczak, R., and Hooker, S. M.

Subjects
Physics - Accelerator Physics, Physics - Plasma Physics
Abstract

We describe a simple scheme, truncated-channel injection, to inject electrons directly into the wakefield driven by a drive pulse guided by an all-optical plasma channel. We use this approach to generate dark-current-free 1.2 GeV, 4.5 % relative energy spread electron bunches with 120 TW laser pulses guided in a 110-mm-long hydrodynamic optical-field-ionized (HOFI) plasma channel. Our experiments and particle-in-cell simulations show that high-quality electron bunches were only obtained when the drive pulse was closely aligned with the channel axis, and was focused close to the density down-ramp formed at the channel entrance. Start-to-end simulations of the channel formation, and electron injection and acceleration show that increasing the channel length to 410 mm would yield 3.65 GeV bunches, with a slice energy spread $\sim 5 \times 10^{-4}$.

Published
2023
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4. Measurement of the decay of laser-driven linear plasma wakefields

Author

Jonnerby, J., von Boetticher, A., Holloway, J., Corner, L., Picksley, A., Ross, A. J., Shalloo, R. J., Thornton, C., Bourgeois, N., Walczak, R., and Hooker, S. M.

Subjects
Physics - Plasma Physics
Abstract

We present the first measurements of the temporal decay rate of one-dimensional, linear Langmuir waves excited by an ultra-short laser pulse. Langmuir waves with relative amplitudes of approximately $6\%$ were driven by $1.7$ J, $50$ fs laser pulses in hydrogen and deuterium plasmas of density $n_{e0} = 8.4 \times 10^{17}$ cm$^{-3}$. The wakefield lifetimes were measured to be $\tau^\mathrm{H_2}_\mathrm{wf} = (9\pm2)$ ps and $\tau^\mathrm{D_2}_\mathrm{wf} = (16\pm8)$ ps respectively for hydrogen and deuterium. The experimental results were found to be in good agreement with 2D particle-in-cell simulations. In addition to being of fundamental interest, these results are particularly relevant to the development of laser wakefield accelerators (LWFAs) and wakefield acceleration schemes using multiple pulses, such as multi-pulse laser wakefield accelerators (MP-LWFAs).

Published
2023
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5. Automated control and optimisation of laser driven ion acceleration

Author

Loughran, B., Streeter, M. J. V., Ahmed, H., Astbury, S., Balcazar, M., Borghesi, M., Bourgeois, N., Curry, C. B., Dann, S. J. D., DiIorio, S., Dover, N. P., Dzelzanis, T., Ettlinger, O. C., Gauthier, M., Giuffrida, L., Glenn, G. D., Glenzer, S. H., Green, J. S., Gray, R. J., Hicks, G. S., Hyland, C., Istokskaia, V., King, M., Margarone, D., McCusker, O., McKenna, P., Najmudin, Z., Parisuaña, C., Parsons, P., Spindloe, C., Symes, D. R., Thomas, A. G. R., Treffert, F., Xu, N., and Palmer, C. A. J.

Subjects
Physics - Plasma Physics, Computer Science - Machine Learning, Physics - Accelerator Physics, Physics - Computational Physics
Abstract

The interaction of relativistically intense lasers with opaque targets represents a highly non-linear, multi-dimensional parameter space. This limits the utility of sequential 1D scanning of experimental parameters for the optimisation of secondary radiation, although to-date this has been the accepted methodology due to low data acquisition rates. High repetition-rate (HRR) lasers augmented by machine learning present a valuable opportunity for efficient source optimisation. Here, an automated, HRR-compatible system produced high fidelity parameter scans, revealing the influence of laser intensity on target pre-heating and proton generation. A closed-loop Bayesian optimisation of maximum proton energy, through control of the laser wavefront and target position, produced proton beams with equivalent maximum energy to manually-optimized laser pulses but using only 60% of the laser energy. This demonstration of automated optimisation of laser-driven proton beams is a crucial step towards deeper physical insight and the construction of future radiation sources., Comment: 11 pages

Published
2023

6. Current knowledge and practice of Candida auris screening in France: A nationwide survey from the French Society of Medical Mycology (SFMM)

Author

Guitard, J., Bellanger, A.P., Dorin, J., Cassaing, S., Capitaine, A., Gabriel, F., Nicolas, M., Coron, N., Penn, P., Moniot, M., Quinio, D., Ranque, S., Sasso, M., Lepape, P., Dannaoui, E., Brun, S., Lacroix, C., Cornu, M., Debourgogne, A., Durieux, M.F., Laurent, G., Bru, V., Bourgeois, N., Brunet, K., Chouaki, T., Huguenin, A., Hasseine, L., Maubon, D., Gangneux, J.P., Desbois-Nogard, N., Houze, S., Dalle, F., Bougnoux, M.E., Alanio, A., Costa, D., Botterel, F., and Hennequin, C.

Published
2024
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7. Characterisation of Laser Wakefield Acceleration Efficiency with Octave Spanning Near-IR Spectrum Measurements

Author

Streeter, M. J. V., Ma, Y., Kettle, B., Dann, S. J. D., Gerstmayr, E., Albert, F., Bourgeois, N., Cipiccia, S., Cole, J. M., González, I. Gallardo, Hussein, A. E., Jaroszynski, D. A., Falk, K., Krushelnick, K., Lemos, N., Lopes, N. C., Lumsdon, C., Lundh, O., Mangles, S. P. D., Najmudin, Z., Rajeev, P. P., Sandberg, R., Shahzad, M., Smid, M., Spesyvtsev, R., Symes, D. R., Vieux, G., and Thomas, A. G. R.

Subjects
Physics - Plasma Physics, Physics - Accelerator Physics
Abstract

We report on experimental measurements of energy transfer efficiencies in a GeV-class laser wakefield accelerator. Both the transfer of energy from the laser to the plasma wakefield, and from the plasma to the accelerated electron beam were diagnosed by simultaneous measurement of the deceleration of laser photons and the acceleration of electrons as a function of plasma length. The extraction efficiency, which we define as the ratio of the energy gained by the electron beam to the energy lost by the self-guided laser mode, was maximised at $19\pm3$\% by tuning of the plasma density and length. The additional information provided by the octave-spanning laser spectrum measurement allows for independent optimisation of the plasma efficiency terms, which is required for the key goal of improving the overall efficiency of laser wakefield accelerators., Comment: 7 pages, 5 figures plus supplementary materials

Published
2020
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8. Study of scintillation light collection, production and propagation in a 4 tonne dual-phase LArTPC

Author

Aimard, B., Aizawa, L., Alt, C., Asaadi, J., Auger, M., Aushev, V., Autiero, D., Balaceanu, A., Balik, G., Balleyguier, L., Bechetoille, E., Belver, D., Blebea-Apostu, A. M., Bolognesi, S., Bordoni, S., Bourgeois, N., Bourguille, B., Bremer, J., Brown, G., Brunetti, G., Brunetti, L., Caiulo, D., Calin, M., Calvo, E., Campanelli, M., Cankocak, K., Cantini, C., Carlus, B., Cautisanu, B. M., Chalifour, M., Chappuis, A., Charitonidis, N., Chatterjee, A., Chiriacescuf, A., Chiu, P., Conforti, S., Cotte, P., Crivelli, P., Cuesta, C., Dawson, J., De Bonis, I., De La Taille, C., Delbart, A., Di Luise, S., Doizon, F., Drancourt, C., Duchesneau, D., Dulucq, F., Duval, F., Emery, S., Ereditato, A., Falcone, A., Fusshoeller, K., Gallego-Ros, A., Galymov, V., Geffroy, N., Gendotti, A., Gherghel-Lascu, A., Gil-Botella, I., Girerd, C., Gomoiu, M. C., Gorodetzky, P., Hamada, E., Hanni, R., Hasegawa, T., Holin, A., Horikawa, S., Ikeno, M., Jiménez, S., Jipa, A., Karolak, M., Karyotakis, Y., Kasai, S., Kasami, K., Kishishita, T., Konari, H., Kreslo, I., Kryn, D., Kunzé, P., Kurokawa, M., Kuromori, Y., Lastoria, C., Lazanu, I., Lehmann-Miotto, G., Leyton, M., Lira, N., Loo, K., Lorca, D., Lutz, P., Lux, T., Maalampi, J., Maire, G., Maki, M., Manenti, L., Margineanu, R. M., Marteau, J., Martin-Chassard, G., Mathez, H., Mazzucato, E., Misitano, G., Mladenov, D., Bueno, L. Molina, Mosu, T. S., Mu, W., Murphy, S., Nakayoshi, K., Narita, S., Navas-Nicolás, D., Negishi, K., Nessi, M., Niculescu-Oglinzanu, M., Noto, F., Noury, A., Onishchuk, Y., Palomares, C., Parvu, M., Patzak, T., Penichot, Y., Pennacchio, E., Periale, L., Pessard, H., Pietropaolo, F., Pugnere, D., Radics, B., Redondo, D., Regenfus, C., Remoto, A., Resnati, F., Ristea, O., Rubbia, A., Saftoiu, A., Sakashita, K., Sanchez, F., Santos, C., Scarpelli, A., Schloesser, C., Sendai, K., Sergiampietri, F., Shahsavarani, S., Shoji, M., Sinclair, J., Soto-Oton, J., Stanca, D. I., Stefan, D., Sulej, R., Tanaka, M., Toboaru, V., Tonazzo, A., Tromeur, W., Trzaska, W. H., Uchida, T., Urda, L., Vannucci, F., Vasseur, G., Verdugo, A., Viant, T., Vihonen, S., Vilalte, S., Weber, M., Wu, S., Yu, J., Zambelli, L., and Zito, M.

Subjects
Physics - Instrumentation and Detectors, High Energy Physics - Experiment
Abstract

The $3 \times 1 \times 1$ m$^3$ demonstrator is a dual phase liquid argon time projection chamber that has recorded cosmic rays events in 2017 at CERN. The light signal in these detectors is crucial to provide precise timing capabilities. The performances of the photon detection system, composed of five PMTs, are discussed. The collected scintillation and electroluminescence light created by passing particles has been studied in various detector conditions. In particular, the scintillation light production and propagation processes have been analyzed and compared to simulations, improving the understanding of some liquid argon properties., Comment: 30 pages, 26 figures

Published
2020
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9. Automation and control of laser wakefield accelerators using Bayesian optimisation

Author

Shalloo, R. J., Dann, S. J. D., Gruse, J. -N., Underwood, C. I. D., Antoine, A. F., Arran, C., Backhouse, M., Baird, C. D., Balcazar, M. D., Bourgeois, N., Cardarelli, J. A., Hatfield, P., Kang, J., Krushelnick, K., Mangles, S. P. D., Murphy, C. D., Lu, N., Osterhoff, J., Põder, K., Rajeev, P. P., Ridgers, C. P., Rozario, S., Selwood, M. P., Shahani, A. J., Symes, D. R., Thomas, A. G. R., Thornton, C., Najmudin, Z., and Streeter, M. J. V.

Subjects
Physics - Accelerator Physics, Physics - Plasma Physics
Abstract

Laser wakefield accelerators promise to revolutionise many areas of accelerator science. However, one of the greatest challenges to their widespread adoption is the difficulty in control and optimisation of the accelerator outputs due to coupling between input parameters and the dynamic evolution of the accelerating structure. Here, we use machine learning techniques to automate a 100 MeV-scale accelerator, which optimised its outputs by simultaneously varying up to 6 parameters including the spectral and spatial phase of the laser and the plasma density and length. Most notably, the model built by the algorithm enabled optimisation of the laser evolution that might otherwise have been missed in single-variable scans. Subtle tuning of the laser pulse shape caused an 80% increase in electron beam charge, despite the pulse length changing by just 1%., Comment: 10 pages, 5 figures

Published
2020
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10. Guiding of high-intensity laser pulses in 100mm-long hydrodynamic optical-field-ionized plasma channels

Author

Picksley, A., Alejo, A., Cowley, J., Bourgeois, N., Corner, L., Feder, L., Holloway, J., Jones, H., Jonnerby, J., Milchberg, H. M., Reid, L. R., Ross, A. J., Walczak, R., and Hooker, S. M.

Subjects
Physics - Accelerator Physics, Physics - Plasma Physics
Abstract

Hydrodynamic optically-field-ionized (HOFI) plasma channels up to 100mm long are investigated. Optical guiding is demonstrated of laser pulses with a peak input intensity of $6\times10^{17}$ W cm$^{-2}$ through 100mm long plasma channels with on-axis densities measured interferometrically to be as low as $n_{e0} = (1.0\pm0.3)\times10^{17}$cm$^{-3}$. Guiding is also observed at lower axial densities, which are inferred from magneto-hydrodynamic simulations to be approximately $7\times10^{16}$cm$^{-3}$. Measurements of the power attenuation lengths of the channels are shown to be in good agreement with those calculated from the measured transverse electron density profiles. To our knowledge, the plasma channels investigated in this work are the longest, and have the lowest on-axis density, of any free-standing waveguide demonstrated to guide laser pulses with intensities above $>10^{17}$ W cm$^{-2}$., Comment: 8 pages, 5 figures, (v2:Correction of typos in abstract)

Published
2020
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11. Single-shot multi-keV X-ray absorption spectroscopy using an ultrashort laser wakefield accelerator source

Author

Kettle, B., Gerstmayr, E., Streeter, M. J. V., Albert, F., Baggott, R. A., Bourgeois, N., Cole, J. M., Dann, S., Falk, K., González, I. Gallardo, Hussein, A. E., Lemos, N., Lopes, N. C., Lundh, O., Ma, Y., Rose, S. J., Spindloe, C., Symes, D. R., Šmíd, M., Thomas, A. G. R., Watt, R., and Mangles, S. P. D.

Subjects
Physics - Plasma Physics, Physics - Instrumentation and Detectors
Abstract

Single-shot absorption measurements have been performed using the multi-keV X-rays generated by a laser wakefield accelerator. A 200 TW laser was used to drive a laser wakefield accelerator in a mode which produced broadband electron beams with a maximum energy above 1 GeV and a broad divergence of $\approx15$ miliradians FWHM. Betatron oscillations of these electrons generated $1.2\pm0.2\times10^6$ photons/eV in the 5 keV region, with a signal-to-noise ratio of approximately 300:1. This was sufficient to allow high-resolution XANES measurements at the K-edge of a titanium sample in a single shot. We demonstrate that this source is capable of single-shot, simultaneous measurements of both the electron and ion distributions in matter heated to eV temperatures by comparison with DFT simulations. The unique combination of a high-flux, large bandwidth, few femtosecond duration X-ray pulse synchronised to a high-power laser will enable key advances in the study of ultra-fast energetic processes such as electron-ion equilibration., Comment: 6 pages and 4 figures in main text, 3 pages and 4 figures in supplementary material

Published
2019
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12. A 4 tonne demonstrator for large-scale dual-phase liquid argon time projection chambers

Author

Aimard, B., Alt, Ch., Asaadi, J., Auger, M., Aushev, V., Autiero, D., Badoi, M. M., Balaceanu, A., Balik, G., Balleyguier, L., Bechetoille, E., Belver, D., Blebea-Apostu, A. M., Bolognesi, S., Bordoni, S., Bourgeois, N., Bourguille, B., Bremer, J., Brown, G., Brunetti, G., Brunetti, L., Caiulo, D., Calin, M., Calvo, E., Campanelli, M., Cankocak, K., Cantini, C., Carlus, B., Cautisanu, B. M., Chalifour, M., Chappuis, A., Charitonidis, N., Chatterjee, A., Chiriacescu, A., Chiu, P., Conforti, S., Cotte, P., Crivelli, P., Cuesta, C., Dawson, J., De Bonis, I., De La Taille, C., Delbart, A., Desforge, D., Di Luise, S., Dimitru, B. S., Doizon, F., Drancourt, C., Duchesneau, D., Dulucq, F., Dumarchez, J., Duval, F., Emery, S., Ereditato, A., Esanu, T., Falcone, A., Fusshoeller, K., Gallego-Ros, A., Galymov, V., Geroy, N., Gendotti, A., Gherghel-Lascu, M., Giganti, C., Gil-Botella, I., Girerd, C., Gomoiu, M. C., Gorodetzky, P., Hamada, E., Hanni, R., Hasegawa, T., Holin, A., Horikawa, S., Ikeno, M., Jimenez, S., Jipa, A., Karolak, M., Karyotakis, Y., Kasai, S., Kasami, K., Kishishita, T., Kreslo, I., Kryn, D., Lastoria, C., Lazanu, I., Lehmann-Miotto, G., Lira, N., Loo, K., Lorca, D., Lutz, P., Lux, T., Maalampi, J., Maire, G., Maki, M., Manenti, L., Margineanu, R. M., Marteau, J., Martin-Chassard, G., Mathez, H., Mazzucato, E., Misitano, G., Mitrica, B., Mladenov, D., Bueno, L. Molina, Martinez, C. Moreno, Mols, J. P., Mosu, T. S., Mug, W., Munteanu, A., Murphy, S., Nakayoshi, K., Narita, S., Navas-Nicolas, D., Negishi, K., Nessi, M., Niculescu-Oglinzanu, M., Nita, L., Noto, F., Noury, A., Onishchuk, Y., Palomares, C., Parvu, M., Patzak, T., Penichot, Y., Pennacchio, E., Periale, L., Pessard, H., Pietropaolo, F., Piret, Y., Popov, B., Pugnere, D., Radics, B., Redondo, D., Regenfus, C., Remoto, A., Resnati, F., Rigaut, Y. A., Ristea, C., Rubbia, A., Saftoiu, A., Sakashita, K., Sanchez, F., Santos, C., Scarpelli, A., Schloesser, C., Lavina, L. Scotto, Sendai, K., Sergiampietri, F., Shahsavarani, S., Shoji, M., Sinclair, J., Soto-Oton, J., Stanca, D. L., Stefan, D., Stroescu, P., Sulej, R., Tanaka, M., Toboaru, V., Tonazzo, A., Tromeur, W., Trzaska, W. H., Uchida, T., Vannucci, F., Vasseur, G., Verdugo, A., Viant, T., Vihonen, S., Vilalte, S., Weber, M., Wu, S., Yu, J., Zambelli, L., and Zito, M.

Subjects
Physics - Instrumentation and Detectors, High Energy Physics - Experiment
Abstract

A 10 kilo-tonne dual-phase liquid argon TPC is one of the detector options considered for the Deep Underground Neutrino Experiment (DUNE). The detector technology relies on amplification of the ionisation charge in ultra-pure argon vapour and oers several advantages compared to the traditional single-phase liquid argon TPCs. A 4.2 tonne dual-phase liquid argon TPC prototype, the largest of its kind, with an active volume of 3x1x1 $m^3$ has been constructed and operated at CERN. In this paper we describe in detail the experimental setup and detector components as well as report on the operation experience. We also present the first results on the achieved charge amplification, prompt scintillation and electroluminescence detection, and purity of the liquid argon from analyses of a collected sample of cosmic ray muons.

Published
2018
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13. Temporal Feedback Control of High-Intensity Laser Pulses to Optimize Ultrafast Heating of Atomic Clusters

Author

Streeter, M. J. V., Dann, S. J. D., Scott, J. D. E., Baird, C. D., Murphy, C. D., Eardley, S., Smith, R. A., Rozario, S., Gruse, J. -N., Mangles, S. P. D., Najmudin, Z., Tata, S., Krishnamurthy, M., Rahul, S. V., Hazra, D., Pourmoussavi, P., Hah, J., Bourgeois, N., Thornton, C., Gregory, C. D., Hooker, C. J., Chekhlov, O., Hawkes, S. J., Parry, B., Marshall, V. A., Tang, Y., Springate, E., Rajeev, P. P., Thomas, A. G. R., and Symes, D. R.

Subjects
Physics - Plasma Physics
Abstract

We describe how active feedback routines can be applied at limited repetition rate (5 Hz) to optimize high-power $>10$ TW) laser interactions with clustered gases. Optimization of x-ray production from an argon cluster jet, using a genetic algorithm, approximately doubled the measured energy through temporal modification of the 150 mJ driving laser pulse. This approach achieved an increased radiation yield through exploration of a multi-dimensional parameter space, without requiring detailed a priori knowledge of the complex cluster dynamics. The optimized laser pulses exhibited a slow rising edge to the intensity profile, which enhanced the laser energy coupling into the cluster medium, compared to the optimally compressed FWHM pulse (40 fs). Our work suggests that this technique can be more widely utilized for control of intense pulsed secondary radiation from petawatt-class laser systems., Comment: 5 pages, 3 figures, Published in APL

Published
2018
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14. Resonant excitation of plasma waves in a plasma channel

Author

Ross, A. J., primary, Chappell, J., additional, van de Wetering, J. J., additional, Cowley, J., additional, Archer, E., additional, Bourgeois, N., additional, Corner, L., additional, Emerson, D. R., additional, Feder, L., additional, Gu, X. J., additional, Jakobsson, O., additional, Jones, H., additional, Picksley, A., additional, Reid, L., additional, Wang, W., additional, Walczak, R., additional, and Hooker, S. M., additional

Published
2024
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15. Average-case complexity of a branch-and-bound algorithm for maximum independent set, under the $\mathcal{G}(n,p)$ random model

Author

Bourgeois, N., Catellier, R., Denat, T., and Paschos, V. Th.

Subjects
Computer Science - Computational Complexity
Abstract

We study average-case complexity of branch-and-bound for maximum independent set in random graphs under the $\mathcal{G}(n,p)$ distribution. In this model every pair $(u,v)$ of vertices belongs to $E$ with probability $p$ independently on the existence of any other edge. We make a precise case analysis, providing phase transitions between subexponential and exponential complexities depending on the probability $p$ of the random model.

Published
2015

16. Application of compact laser-driven accelerator X-ray sources for industrial imaging

Author

Gruse, J.-N., Streeter, M.J.V., Thornton, C., Armstrong, C.D., Baird, C.D., Bourgeois, N., Cipiccia, S., Finlay, O.J., Gregory, C.D., Katzir, Y., Lopes, N.C., Mangles, S.P.D., Najmudin, Z., Neely, D., Pickard, L.R., Potter, K.D., Rajeev, P.P., Rusby, D.R., Underwood, C.I.D., Warnett, J.M., Williams, M.A., Wood, J.C., Murphy, C.D., Brenner, C.M., and Symes, D.R.

Published
2020
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17. ArDM: first results from underground commissioning

Author

Badertscher, A., Bay, F., Bourgeois, N., Cantini, C., Curioni, A., Daniel, M., Degunda, U., Di Luise, S., Epprecht, L., Gendotti, A., Horikawa, S., Knecht, L., Lussi, D., Maire, G., Montes, B., Murphy, S., Natterer, G., Nikolics, K., Nguyen, K., Periale, L., Ravat, S., Resnati, F., Romero, L., Rubbia, A., Santorelli, R., Sergiampietri, F., Sgalaberna, D., Viant, T., and Wu, S.

Subjects
Physics - Instrumentation and Detectors
Abstract

The Argon Dark Matter experiment is a ton-scale double phase argon Time Projection Chamber designed for direct Dark Matter searches. It combines the detection of scintillation light together with the ionisation charge in order to discriminate the background (electron recoils) from the WIMP signals (nuclear recoils). After a successful operation on surface at CERN, the detector was recently installed in the underground Laboratorio Subterr\'aneo de Canfranc, and the commissioning phase is ongoing. We describe the status of the installation and present first results from data collected underground with the detector filled with gas argon at room temperature., Comment: 6 pages, 3 figures, Light Detection In Noble Elements (LIDINE 2013)

Published
2013
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18. Status of the ArDM Experiment: First results from gaseous argon operation in deep underground environment

Author

ArDM Collaboration, Badertscher, A., Bay, F., Bourgeois, N., Cantini, C., Daniel, M., Degunda, U., DiLuise, S., Epprecht, L., Gendotti, A., Horikawa, S., Knecht, L., Lussi, D., Maire, G., Montes, B., Murphy, S., Natterer, G., Nikolics, K., Nguyen, K., Periale, L., Ravat, S., Resnati, F., Romero, L., Rubbia, A., Santorelli, R., Sergiampietri, F., Sgalaberna, D., Viant, T., and Wu, S.

Subjects
Physics - Instrumentation and Detectors
Abstract

The Argon Dark Matter (ArDM-1t) experiment is a ton-scale liquid argon (LAr) double-phase time projection chamber designed for direct Dark Matter searches. Such a device allows to explore the low energy frontier in LAr. After successful operation on surface at CERN, the detector has been deployed underground and is presently commissioned at the Canfranc Underground Laboratory (LSC). In this paper, we describe the status of the installation and present first results on data collected in gas phase., Comment: 21 pages, 20 figures

Published
2013

20. Anomalous Self-Generated Electrostatic Fields in Nanosecond Laser-Plasma Interaction

Author

Lancia, L., Grech, M., Weber, S., Marquès, J. -R., Romagnani, L., Nakatsutsumi, M., Antici, P., Bellue, A., Bourgeois, N., Feugeas, J. -L., Grismayer, T., Lin, T., Nicolaï, Ph., Nkonga, B., Audebert, P., Kodama, R., Tikhonchuk, V. T., and Fuchs, J.

Subjects
Physics - Plasma Physics
Abstract

Electrostatic (E) fields associated with the interaction of a well-controlled, high-power, nanosecond laser pulse with an underdense plasma are diagnosed by proton radiography. Using a current 3D wave propagation code equipped with nonlinear and nonlocal hydrodynamics, we can model the measured E-fields that are driven by the laser ponderomotive force in the region where the laser undergoes filamentation. However, strong fields of up to 110 MV/m measured in the first millimeter of propagation cannot be reproduced in the simulations. This could point to the presence of unexpected strong thermal electron pressure gradients possibly linked to ion acoustic turbulence, thus emphasizing the need for the development of full kinetic collisional simulations in order to properly model laser-plasma interaction in these strongly nonlinear conditions., Comment: 12 pages, 4 figures, submitted to Physics of Plasmas

Published
2011
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21. The ArDM experiment

Author

ArDM Collaboration, Amsler, C., Badertscher, A., Boccone, V., Bourgeois, N., Bueno, A., Carmona-Benitez, M. C., Chorowski, M., Creus, W., Curioni, A., Daw, E., Degunda, U., Dell'Antone, A., Droge, M., Epprecht, L., Haller, C., Haranczyk, M., Horikawa, S., Kaufmann, L., Kisiel, J., Knecht, L., Laffranchi, M., Lagoda, J., Lazzaro, C., Lightfoot, P., Lozano, J., Lussi, D., Maire, G., Mania, S., Marchionni, A., Mavrokoridis, K., Melgarejo, A., Mijakowski, P., Natterer, G., Navas-Concha, S., Otiougova, P., Piotrowska, A., Polinski, J., de Prado, M., Przewlocki, P., Ravat, S., Regenfus, C., Resnati, F., Robinson, M., Rochet, J., Romero, L., Rondio, E., Rubbia, A., Scotto-Lavina, L., Spooner, N., Viant, T., Trawinski, A., Ulbricht, J., and Zalewska, A.

Subjects
Physics - Instrumentation and Detectors, Astrophysics - Instrumentation and Methods for Astrophysics, High Energy Physics - Experiment
Abstract

The aim of the ArDM project is the development and operation of a one ton double-phase liquid argon detector for direct Dark Matter searches. The detector measures both the scintillation light and the ionization charge from ionizing radiation using two independent readout systems. This paper briefly describes the detector concept and presents preliminary results from the ArDM R&D program, including a 3 l prototype developed to test the charge readout system., Comment: Proceedings of the Epiphany 2010 Conference, to be published in Acta Physica Polonica B

Published
2010

23. Measurement of the decay of laser-driven linear plasma wakefields

Author

Jonnerby, J., primary, von Boetticher, A., additional, Holloway, J., additional, Corner, L., additional, Picksley, A., additional, Ross, A. J., additional, Shalloo, R. J., additional, Thornton, C., additional, Bourgeois, N., additional, Walczak, R., additional, and Hooker, S. M., additional

Published
2023
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24. Evaluation of a new multiplex PCR assay (ParaGENIE G-Amoeba Real-Time PCR kit) targeting Giardia intestinalis, Entamoeba histolytica and Entamoeba dispar/Entamoeba moshkovskii from stool specimens: evidence for the limited performances of microscopy-based approach for amoeba species identification

Author

Morio, F., Valot, S., Laude, A., Desoubeaux, G., Argy, N., Nourrisson, C., Pomares, C., Machouart, M., Le Govic, Y., Dalle, F., Botterel, F., Bourgeois, N., Cateau, E., Leterrier, M., Jeddi, F., Gaboyard, M., and Le Pape, P.

Published
2018
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27. The ArDM experiment

Author

Harańczyk, M, Amsler, C, Badertscher, A, Boccone, V, Bourgeois, N, Bueno, A, Carmona-Benitez, MC, Chorowski, M, Creus, W, Curioni, A, Daw, E, Degunda, U, Dell'Antone, A, Dröge, M, Epprecht, L, Haller, C, Horikawa, S, Kaufmann, L, Kisiel, J, Knecht, L, Laffranchi, M, Lagoda, J, Lazzaro, C, Lightfoot, P, Lozano, J, Lussi, D, Maire, G, Mania, S, Marchionni, A, Mavrokoridis, K, Melgarejo, A, Mijakowski, P, Natterer, G, Navas-Concha, S, Otiougova, P, Piotrowska, A, Poliński, J, De Prado, M, Przewłocki, P, Ravat, S, Regenfus, C, Resnati, F, Robinson, M, Rochet, J, Romero, L, Rondio, E, Rubbia, A, Scotto-Lavina, L, Spooner, N, Viant, T, Trawiński, A, Ulbricht, J, and Zalewska, A

Subjects
physics.ins-det, astro-ph.IM, hep-ex, Nuclear & Particles Physics, Mathematical Sciences, Physical Sciences
Abstract

The aim of the ArDM project is the development and operation of a one ton double-phase liquid argon detector for direct Dark Matter searches. The detector measures both the scintillation light and the ionization charge from ionizing radiation using two independent readout systems. This paper briefly describes the detector concept and presents preliminary results from the ArDM R&D program, including a 3 l prototype developed to test the charge readout system.

Published
2010

28. Author Correction: Laser-wakefield accelerators for high-resolution X-ray imaging of complex microstructures

Author

Hussein, A. E., Senabulya, N., Ma, Y., Streeter, M. J. V., Kettle, B., Dann, S. J. D., Albert, F., Bourgeois, N., Cipiccia, S., Cole, J. M., Finlay, O., Gerstmayr, E., González, I. Gallardo, Higginbotham, A., Jaroszynski, D. A., Falk, K., Krushelnick, K., Lemos, N., Lopes, N. C., Lumsdon, C., Lundh, O., Mangles, S. P. D., Najmudin, Z., Rajeev, P. P., Schlepütz, C. M., Shahzad, M., Smid, M., Spesyvtsev, R., Symes, D. R., Vieux, G., Willingale, L., Wood, J. C., Shahani, A. J., and Thomas, A. G. R.

Published
2020
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29. Versatile tape-drive target for high-repetition-rate laser-driven proton acceleration – CORRIGENDUM

Author

Xu, N., Streeter, M. J.V., Ettlinger, O. C., Ahmed, H., Astbury, S., Borghesi, M., Bourgeois, N., Curry, C. B., Dann, S. J.D., Dover, N. P., Dzelzainis, T., Istokskaia, V., Gauthier, M., Giuffrida, L., Glenn, G. D., Glenzer, S. H., Gray, R. J., Green, J. S., Hicks, G. S., Hyland, C., King, M., Loughran, B., Margarone, D., McCusker, O., McKenna, P., Parisuaña, C., Parsons, P., Spindloe, C., Symes, D. R., Treffert, F., Palmer, C. A.J., and Najmudin, Z.

Subjects
Nuclear and High Energy Physics, Nuclear Energy and Engineering, Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials
Abstract

The authors apologise that upon publication of this article the wrong copyright creative commons licence type was selected as a NonCommercial-NoDerivatives licence. This has been updated to the correct licence which is listed in full below:.

Published
2023
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30. Laser-wakefield accelerators for high-resolution X-ray imaging of complex microstructures

Author

Hussein, A. E., Senabulya, N., Ma, Y., Streeter, M. J. V., Kettle, B., Dann, S. J. D., Albert, F., Bourgeois, N., Cipiccia, S., Cole, J. M., Finlay, O., Gerstmayr, E., González, I. Gallardo, Higginbotham, A., Jaroszynski, D. A., Falk, K., Krushelnick, K., Lemos, N., Lopes, N. C., Lumsdon, C., Lundh, O., Mangles, S. P. D., Najmudin, Z., Rajeev, P. P., Schlepütz, C. M., Shahzad, M., Smid, M., Spesyvtsev, R., Symes, D. R., Vieux, G., Willingale, L., Wood, J. C., Shahani, A. J., and Thomas, A. G. R.

Published
2019
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31. Laser Wakefield Accelerator modelling with Variational Neural Networks

Author

Streeter, M.J.V., primary, Colgan, C., additional, Cobo, C.C., additional, Arran, C., additional, Los, E.E., additional, Watt, R., additional, Bourgeois, N., additional, Calvin, L., additional, Carderelli, J., additional, Cavanagh, N., additional, Dann, S.J.D., additional, Fitzgarrald, R., additional, Gerstmayr, E., additional, Joglekar, A.S., additional, Kettle, B., additional, McKenna, P., additional, Murphy, C.D., additional, Najmudin, Z., additional, Parsons, P., additional, Qian, Q., additional, Rajeev, P.P., additional, Ridgers, C.P., additional, Symes, D.R., additional, Thomas, A.G.R., additional, Sarri, G., additional, and Mangles, S.P.D., additional

Published
2023
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32. Automated control and optimization of laser-driven ion acceleration

Author

Loughran, B., primary, Streeter, M. J. V., additional, Ahmed, H., additional, Astbury, S., additional, Balcazar, M., additional, Borghesi, M., additional, Bourgeois, N., additional, Curry, C. B., additional, Dann, S. J. D., additional, DiIorio, S., additional, Dover, N. P., additional, Dzelzainis, T., additional, Ettlinger, O. C., additional, Gauthier, M., additional, Giuffrida, L., additional, Glenn, G. D., additional, Glenzer, S. H., additional, Green, J. S., additional, Gray, R. J., additional, Hicks, G. S., additional, Hyland, C., additional, Istokskaia, V., additional, King, M., additional, Margarone, D., additional, McCusker, O., additional, McKenna, P., additional, Najmudin, Z., additional, Parisuaña, C., additional, Parsons, P., additional, Spindloe, C., additional, Symes, D. R., additional, Thomas, A. G. R., additional, Treffert, F., additional, Xu, N., additional, and Palmer, C. A. J., additional

Published
2023
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33. Versatile tape-drive target for high-repetition-rate laser-driven proton acceleration

Author

Xu, N., primary, Streeter, M. J. V., additional, Ettlinger, O. C., additional, Ahmed, H., additional, Astbury, S., additional, Borghesi, M., additional, Bourgeois, N., additional, Curry, C. B., additional, Dann, S. J. D., additional, Dover, N. P., additional, Dzelzainis, T., additional, Istokskaia, V., additional, Gauthier, M., additional, Giuffrida, L., additional, Glenn, G. D., additional, Glenzer, S. H., additional, Gray, R. J., additional, Green, J. S., additional, Hicks, G. S., additional, Hyland, C., additional, King, M., additional, Loughran, B., additional, Margarone, D., additional, McCusker, O., additional, McKenna, P., additional, Parisuaña, C., additional, Parsons, P., additional, Spindloe, C., additional, Symes, D. R., additional, Treffert, F., additional, Palmer, C. A. J., additional, and Najmudin, Z., additional

Published
2023
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35. Characterization of laser wakefield acceleration efficiency with octave spanning near-IR spectrum measurements

Author

Streeter, M. J. V., primary, Ma, Y., additional, Kettle, B., additional, Dann, S. J. D., additional, Gerstmayr, E., additional, Albert, F., additional, Bourgeois, N., additional, Cipiccia, S., additional, Cole, J. M., additional, Gallardo González, I., additional, Hussein, A. E., additional, Jaroszynski, D. A., additional, Falk, K., additional, Krushelnick, K., additional, Lemos, N., additional, Lopes, N. C., additional, Lumsdon, C., additional, Lundh, O., additional, Mangles, S. P. D., additional, Najmudin, Z., additional, Rajeev, P. P., additional, Sandberg, R., additional, Shahzad, M., additional, Smid, M., additional, Spesyvtsev, R., additional, Symes, D. R., additional, Vieux, G., additional, and Thomas, A. G. R., additional

Published
2022
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36. The max quasi-independent set Problem

Author

Bourgeois, N., Giannakos, A., Lucarelli, G., Milis, I., Paschos, V. Th., Pottié, O., Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Ablayev, Farid, editor, and Mayr, Ernst W., editor

Published
2010
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38. Exact Algorithms for Dominating Clique Problems : (Extended Abstract)

Author

Bourgeois, N., Della Croce, F., Escoffier, B., Paschos, V. Th., Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Dong, Yingfei, editor, Du, Ding-Zhu, editor, and Ibarra, Oscar, editor

Published
2009
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39. Study of scintillation light collection, production and propagation in a 4 tonne dual-phase LArTPC

Author

Aimard, B, Aizawa, L, Alt, C, Asaadi, J, Auger, M, Aushev, V, Autiero, D, Balaceanu, A, Balik, G, Balleyguier, L, Bechetoille, E, Belver, D, Blebea-Apostu, A, Bolognesi, S, Bordoni, S, Bourgeois, N, Bourguille, B, Bremer, J, Brown, G, Brunetti, L, Brunetti, G, Caiulo, D, Calin, M, Calvo, E, Campanelli, M, Cankocak, K, Cantini, C, Carlus, B, Cautisanu, B, Chalifour, M, Chappuis, A, Charitonidis, N, Chatterjee, A, Chiriacescuf, A, Chiu, P, Conforti, S, Cotte, P, Crivelli, P, Cuesta, C, Dawson, J, De Bonis, I, De La Taille, C, Delbart, A, Di Luise, S, Doizon, F, Drancourt, C, Duchesneau, D, Dulucq, F, Duval, F, Emery, S, Ereditato, A, Falcone, A, Fusshoeller, K, Gallego-Ros, A, Galymov, V, Geffroy, N, Gendotti, A, Gherghel-Lascu, A, Gil-Botella, I, Girerd, C, Gomoiu, M, Gorodetzky, P, Hamada, E, Hanni, R, Hasegawa, T, Holin, A, Horikawa, S, Ikeno, M, Jiménez, S, Jipa, A, Karolak, M, Karyotakis, Y, Kasai, S, Kasami, K, Kishishita, T, Konari, H, Kreslo, I, Kryn, D, Kunzé, P, Kurokawa, M, Kuromori, Y, Lastoria, C, Lazanu, I, Lehmann-Miotto, G, Leyton, M, Lira, N, Loo, K, Lorca, D, Lutz, P, Lux, T, Maalampi, J, Maire, G, Maki, M, Manenti, L, Margineanu, R, Marteau, J, Martin-Chassard, G, Mathez, H, Mazzucato, E, Misitano, G, Mladenov, D, Molina Bueno, L, Mosu, T, Mu, W, Murphy, S, Nakayoshi, K, Narita, S, Navas-Nicolás, D, Negishi, K, Nessi, M, Niculescu-Oglinzanu, M, Noto, F, Noury, A, Onishchuk, Y, Palomares, C, Parvu, M, Patzak, T, Penichot, Y, Pennacchio, E, Periale, L, Pessard, H, Pietropaolo, F, Pugnere, D, Radics, B, Redondo, D, Regenfus, C, Remoto, A, Resnati, F, Ristea, O, Rubbia, A, Saftoiu, A, Sakashita, K, Sanchez, F, Santos, C, Scarpelli, A, Schloesser, C, Sendai, K, Sergiampietri, F, Shahsavarani, S, Shoji, M, Sinclair, J, Soto-Oton, J, Stanca, D, Stefan, D, Sulej, R, Tanaka, M, Toboaru, V, Tonazzo, A, Tromeur, W, Trzaska, W, Uchida, T, Urda, L, Vannucci, F, Vasseur, G, Verdugo, A, Viant, T, Vihonen, S, Vilalte, S, Weber, M, Wu, S, Yu, J, Zambelli, L, Zito, M, Aimard, B., Aizawa, L., Alt, C., Asaadi, J., Auger, M., Aushev, V., Autiero, D., Balaceanu, A., Balik, G., Balleyguier, L., Bechetoille, E., Belver, D., Blebea-Apostu, A. M., Bolognesi, S., Bordoni, S., Bourgeois, N., Bourguille, B., Bremer, J., Brown, G., Brunetti, L., Brunetti, G., Caiulo, D., Calin, M., Calvo, E., Campanelli, M., Cankocak, K., Cantini, C., Carlus, B., Cautisanu, B. M., Chalifour, M., Chappuis, A., Charitonidis, N., Chatterjee, A., Chiriacescuf, A., Chiu, P., Conforti, S., Cotte, P., Crivelli, P., Cuesta, C., Dawson, J., De Bonis, I., De La Taille, C., Delbart, A., Di Luise, S., Doizon, F., Drancourt, C., Duchesneau, D., Dulucq, F., Duval, F., Emery, S., Ereditato, A., Falcone, A., Fusshoeller, K., Gallego-Ros, A., Galymov, V., Geffroy, N., Gendotti, A., Gherghel-Lascu, A., Gil-Botella, I., Girerd, C., Gomoiu, M. C., Gorodetzky, P., Hamada, E., Hanni, R., Hasegawa, T., Holin, A., Horikawa, S., Ikeno, M., Jiménez, S., Jipa, A., Karolak, M., Karyotakis, Y., Kasai, S., Kasami, K., Kishishita, T., Konari, H., Kreslo, I., Kryn, D., Kunzé, P., Kurokawa, M., Kuromori, Y., Lastoria, C., Lazanu, I., Lehmann-Miotto, G., Leyton, M., Lira, N., Loo, K., Lorca, D., Lutz, P., Lux, T., Maalampi, J., Maire, G., Maki, M., Manenti, L., Margineanu, R. M., Marteau, J., Martin-Chassard, G., Mathez, H., Mazzucato, E., Misitano, G., Mladenov, D., Molina Bueno, L., Mosu, T. S., Mu, W., Murphy, S., Nakayoshi, K., Narita, S., Navas-Nicolás, D., Negishi, K., Nessi, M., Niculescu-Oglinzanu, M., Noto, F., Noury, A., Onishchuk, Y., Palomares, C., Parvu, M., Patzak, T., Penichot, Y., Pennacchio, E., Periale, L., Pessard, H., Pietropaolo, F., Pugnere, D., Radics, B., Redondo, D., Regenfus, C., Remoto, A., Resnati, F., Ristea, O., Rubbia, A., Saftoiu, A., Sakashita, K., Sanchez, F., Santos, C., Scarpelli, A., Schloesser, C., Sendai, K., Sergiampietri, F., Shahsavarani, S., Shoji, M., Sinclair, J., Soto-Oton, J., Stanca, D. I., Stefan, D., Sulej, R., Tanaka, M., Toboaru, V., Tonazzo, A., Tromeur, W., Trzaska, W. H., Uchida, T., Urda, L., Vannucci, F., Vasseur, G., Verdugo, A., Viant, T., Vihonen, S., Vilalte, S., Weber, M., Wu, S., Yu, J., Zambelli, L., Zito, M., Aimard, B, Aizawa, L, Alt, C, Asaadi, J, Auger, M, Aushev, V, Autiero, D, Balaceanu, A, Balik, G, Balleyguier, L, Bechetoille, E, Belver, D, Blebea-Apostu, A, Bolognesi, S, Bordoni, S, Bourgeois, N, Bourguille, B, Bremer, J, Brown, G, Brunetti, L, Brunetti, G, Caiulo, D, Calin, M, Calvo, E, Campanelli, M, Cankocak, K, Cantini, C, Carlus, B, Cautisanu, B, Chalifour, M, Chappuis, A, Charitonidis, N, Chatterjee, A, Chiriacescuf, A, Chiu, P, Conforti, S, Cotte, P, Crivelli, P, Cuesta, C, Dawson, J, De Bonis, I, De La Taille, C, Delbart, A, Di Luise, S, Doizon, F, Drancourt, C, Duchesneau, D, Dulucq, F, Duval, F, Emery, S, Ereditato, A, Falcone, A, Fusshoeller, K, Gallego-Ros, A, Galymov, V, Geffroy, N, Gendotti, A, Gherghel-Lascu, A, Gil-Botella, I, Girerd, C, Gomoiu, M, Gorodetzky, P, Hamada, E, Hanni, R, Hasegawa, T, Holin, A, Horikawa, S, Ikeno, M, Jiménez, S, Jipa, A, Karolak, M, Karyotakis, Y, Kasai, S, Kasami, K, Kishishita, T, Konari, H, Kreslo, I, Kryn, D, Kunzé, P, Kurokawa, M, Kuromori, Y, Lastoria, C, Lazanu, I, Lehmann-Miotto, G, Leyton, M, Lira, N, Loo, K, Lorca, D, Lutz, P, Lux, T, Maalampi, J, Maire, G, Maki, M, Manenti, L, Margineanu, R, Marteau, J, Martin-Chassard, G, Mathez, H, Mazzucato, E, Misitano, G, Mladenov, D, Molina Bueno, L, Mosu, T, Mu, W, Murphy, S, Nakayoshi, K, Narita, S, Navas-Nicolás, D, Negishi, K, Nessi, M, Niculescu-Oglinzanu, M, Noto, F, Noury, A, Onishchuk, Y, Palomares, C, Parvu, M, Patzak, T, Penichot, Y, Pennacchio, E, Periale, L, Pessard, H, Pietropaolo, F, Pugnere, D, Radics, B, Redondo, D, Regenfus, C, Remoto, A, Resnati, F, Ristea, O, Rubbia, A, Saftoiu, A, Sakashita, K, Sanchez, F, Santos, C, Scarpelli, A, Schloesser, C, Sendai, K, Sergiampietri, F, Shahsavarani, S, Shoji, M, Sinclair, J, Soto-Oton, J, Stanca, D, Stefan, D, Sulej, R, Tanaka, M, Toboaru, V, Tonazzo, A, Tromeur, W, Trzaska, W, Uchida, T, Urda, L, Vannucci, F, Vasseur, G, Verdugo, A, Viant, T, Vihonen, S, Vilalte, S, Weber, M, Wu, S, Yu, J, Zambelli, L, Zito, M, Aimard, B., Aizawa, L., Alt, C., Asaadi, J., Auger, M., Aushev, V., Autiero, D., Balaceanu, A., Balik, G., Balleyguier, L., Bechetoille, E., Belver, D., Blebea-Apostu, A. M., Bolognesi, S., Bordoni, S., Bourgeois, N., Bourguille, B., Bremer, J., Brown, G., Brunetti, L., Brunetti, G., Caiulo, D., Calin, M., Calvo, E., Campanelli, M., Cankocak, K., Cantini, C., Carlus, B., Cautisanu, B. M., Chalifour, M., Chappuis, A., Charitonidis, N., Chatterjee, A., Chiriacescuf, A., Chiu, P., Conforti, S., Cotte, P., Crivelli, P., Cuesta, C., Dawson, J., De Bonis, I., De La Taille, C., Delbart, A., Di Luise, S., Doizon, F., Drancourt, C., Duchesneau, D., Dulucq, F., Duval, F., Emery, S., Ereditato, A., Falcone, A., Fusshoeller, K., Gallego-Ros, A., Galymov, V., Geffroy, N., Gendotti, A., Gherghel-Lascu, A., Gil-Botella, I., Girerd, C., Gomoiu, M. C., Gorodetzky, P., Hamada, E., Hanni, R., Hasegawa, T., Holin, A., Horikawa, S., Ikeno, M., Jiménez, S., Jipa, A., Karolak, M., Karyotakis, Y., Kasai, S., Kasami, K., Kishishita, T., Konari, H., Kreslo, I., Kryn, D., Kunzé, P., Kurokawa, M., Kuromori, Y., Lastoria, C., Lazanu, I., Lehmann-Miotto, G., Leyton, M., Lira, N., Loo, K., Lorca, D., Lutz, P., Lux, T., Maalampi, J., Maire, G., Maki, M., Manenti, L., Margineanu, R. M., Marteau, J., Martin-Chassard, G., Mathez, H., Mazzucato, E., Misitano, G., Mladenov, D., Molina Bueno, L., Mosu, T. S., Mu, W., Murphy, S., Nakayoshi, K., Narita, S., Navas-Nicolás, D., Negishi, K., Nessi, M., Niculescu-Oglinzanu, M., Noto, F., Noury, A., Onishchuk, Y., Palomares, C., Parvu, M., Patzak, T., Penichot, Y., Pennacchio, E., Periale, L., Pessard, H., Pietropaolo, F., Pugnere, D., Radics, B., Redondo, D., Regenfus, C., Remoto, A., Resnati, F., Ristea, O., Rubbia, A., Saftoiu, A., Sakashita, K., Sanchez, F., Santos, C., Scarpelli, A., Schloesser, C., Sendai, K., Sergiampietri, F., Shahsavarani, S., Shoji, M., Sinclair, J., Soto-Oton, J., Stanca, D. I., Stefan, D., Sulej, R., Tanaka, M., Toboaru, V., Tonazzo, A., Tromeur, W., Trzaska, W. H., Uchida, T., Urda, L., Vannucci, F., Vasseur, G., Verdugo, A., Viant, T., Vihonen, S., Vilalte, S., Weber, M., Wu, S., Yu, J., Zambelli, L., and Zito, M.

Abstract

The 3 1 1 m3 demonstrator is a dual phase liquid argon time projection chamber that has recorded cosmic rays events in 2017 at CERN. The light signal in these detectors is crucial to provide precise timing capabilities. The performance of the photon detection system, composed of five PMTs, are discussed. The collected scintillation and electroluminescence light created by passing particles has been studied in various detector conditions. In particular, the scintillation light production and propagation processes have been analyzed and compared to simulations, improving the understanding of some liquid argon properties.

Published
2021

40. Performance study of a 3×1×1 m3dual phase liquid Argon Time Projection Chamber exposed to cosmic rays

Author

Wa105 Collaboration, T, Aimard, B, Aizawa, L, Alt, C, Asaadi, J, Auger, M, Aushev, V, Autiero, D, Balaceanu, A, Balik, G, Balleyguier, L, Bechetoille, E, Belver, D, Blebea-Apostu, A, Bolognesi, S, Bordoni, S, Bourgeois, N, Bourguille, B, Bremer, J, Brown, G, Brunetti, L, Brunetti, G, Caiulo, D, Calin, M, Calvo, E, Campanelli, M, Cankocak, K, Cantini, C, Carlus, B, Cautisanu, B, Chalifour, M, Chappuis, A, Charitonidis, N, Chatterjee, A, Chiriacescuf, A, Chiu, P, Coan, T, Conforti, S, Cotte, P, Crivelli, P, Cuesta, C, Dawson, J, De Bonis, I, De La Taille, C, Delbart, A, Di Luise, S, Doizon, F, Drancourt, C, Duchesneau, D, Dulucq, F, Duval, F, Emery, S, Ereditato, A, Falcone, A, Fusshoeller, K, Gallego-Ros, A, Galymov, V, Geffroy, N, Gendotti, A, Gherghel-Lascu, A, Gil-Botella, I, Girerd, C, Gomoiu, M, Gorodetzky, P, Hamada, E, Hanni, R, Hasegawa, T, Holin, A, Horikawa, S, Ikeno, M, Jimenez, S, Jipa, A, Karolak, M, Karyotakis, Y, Kasai, S, Kasami, K, Kishishita, T, Konari, H, Kreslo, I, Kryn, D, Kunze, P, Kurokawa, M, Kuromori, Y, Lastoria, C, Lazanu, I, Lehmann-Miotto, G, Leyton, M, Lira, N, Liubarska, M, Loo, K, Lorca, D, Lutz, P, Lux, T, Maalampi, J, Maire, G, Maki, M, Manenti, L, Margineanu, R, Marteau, J, Martin-Chassard, G, Mathez, H, Mazzucato, E, Misitano, G, Mladenov, D, Molina Bueno, L, Mosu, T, Mu, W, Murphy, S, Nakayoshi, K, Narita, S, Navas-Nicolas, D, Negishi, K, Nessi, M, Niculescu-Oglinzanu, M, Noto, F, Noury, A, Onishchuk, Y, Palomares, C, Parvu, M, Patzak, T, Penichot, Y, Pennacchio, E, Periale, L, Pessard, H, Pietropaolo, F, Pugnere, D, Radics, B, Redondo, D, Regenfus, C, Remoto, A, Resnati, F, Ristea, O, Rubbia, A, Saftoiu, A, Sakashita, K, Sanchez, F, Santos, C, Scarpelli, A, Schloesser, C, Sendai, K, Sergiampietri, F, Shahsavarani, S, Shoji, M, Sinclair, J, Soto-Oton, J, Stanca, D, Stefan, D, Sulej, R, Tanaka, M, Toboaru, V, Tonazzo, A, Tromeur, W, Trzaska, W, Uchida, T, Urda, L, Vannucci, F, Vasseur, G, Verdugo, A, Viant, T, Vihonen, S, Vilalte, S, Weber, M, Wu, S, Yu, J, Zambelli, L, Zito, M, Wa105 Collaboration T., Aimard B., Aizawa L., Alt C., Asaadi J., Auger M., Aushev V., Autiero D., Balaceanu A., Balik G., Balleyguier L., Bechetoille E., Belver D., Blebea-Apostu A. M., Bolognesi S., Bordoni S., Bourgeois N., Bourguille B., Bremer J., Brown G., Brunetti L., Brunetti G., Caiulo D., Calin M., Calvo E., Campanelli M., Cankocak K., Cantini C., Carlus B., Cautisanu B. M., Chalifour M., Chappuis A., Charitonidis N., Chatterjee A., Chiriacescuf A., Chiu P., Coan T., Conforti S., Cotte P., Crivelli P., Cuesta C., Dawson J., De Bonis I., De La Taille C., Delbart A., Di Luise S., Doizon F., Drancourt C., Duchesneau D., Dulucq F., Duval F., Emery S., Ereditato A., Falcone A., Fusshoeller K., Gallego-Ros A., Galymov V., Geffroy N., Gendotti A., Gherghel-Lascu A., Gil-Botella I., Girerd C., Gomoiu M. C., Gorodetzky P., Hamada E., Hanni R., Hasegawa T., Holin A., Horikawa S., Ikeno M., Jimenez S., Jipa A., Karolak M., Karyotakis Y., Kasai S., Kasami K., Kishishita T., Konari H., Kreslo I., Kryn D., Kunze P., Kurokawa M., Kuromori Y., Lastoria C., Lazanu I., Lehmann-Miotto G., Leyton M., Lira N., Liubarska M., Loo K., Lorca D., Lutz P., Lux T., Maalampi J., Maire G., Maki M., Manenti L., Margineanu R. M., Marteau J., Martin-Chassard G., Mathez H., Mazzucato E., Misitano G., Mladenov D., Molina Bueno L., Mosu T. S., Mu W., Murphy S., Nakayoshi K., Narita S., Navas-Nicolas D., Negishi K., Nessi M., Niculescu-Oglinzanu M., Noto F., Noury A., Onishchuk Y., Palomares C., Parvu M., Patzak T., Penichot Y., Pennacchio E., Periale L., Pessard H., Pietropaolo F., Pugnere D., Radics B., Redondo D., Regenfus C., Remoto A., Resnati F., Ristea O., Rubbia A., Saftoiu A., Sakashita K., Sanchez F., Santos C., Scarpelli A., Schloesser C., Sendai K., Sergiampietri F., Shahsavarani S., Shoji M., Sinclair J., Soto-Oton J., Stanca D. I., Stefan D., Sulej R., Tanaka M., Toboaru V., Tonazzo A., Tromeur W., Trzaska W. H., Uchida T., Urda L., Vannucci F., Vasseur G., Verdugo A., Viant T., Vihonen S., Vilalte S., Weber M., Wu S., Yu J., Zambelli L., Zito M., Wa105 Collaboration, T, Aimard, B, Aizawa, L, Alt, C, Asaadi, J, Auger, M, Aushev, V, Autiero, D, Balaceanu, A, Balik, G, Balleyguier, L, Bechetoille, E, Belver, D, Blebea-Apostu, A, Bolognesi, S, Bordoni, S, Bourgeois, N, Bourguille, B, Bremer, J, Brown, G, Brunetti, L, Brunetti, G, Caiulo, D, Calin, M, Calvo, E, Campanelli, M, Cankocak, K, Cantini, C, Carlus, B, Cautisanu, B, Chalifour, M, Chappuis, A, Charitonidis, N, Chatterjee, A, Chiriacescuf, A, Chiu, P, Coan, T, Conforti, S, Cotte, P, Crivelli, P, Cuesta, C, Dawson, J, De Bonis, I, De La Taille, C, Delbart, A, Di Luise, S, Doizon, F, Drancourt, C, Duchesneau, D, Dulucq, F, Duval, F, Emery, S, Ereditato, A, Falcone, A, Fusshoeller, K, Gallego-Ros, A, Galymov, V, Geffroy, N, Gendotti, A, Gherghel-Lascu, A, Gil-Botella, I, Girerd, C, Gomoiu, M, Gorodetzky, P, Hamada, E, Hanni, R, Hasegawa, T, Holin, A, Horikawa, S, Ikeno, M, Jimenez, S, Jipa, A, Karolak, M, Karyotakis, Y, Kasai, S, Kasami, K, Kishishita, T, Konari, H, Kreslo, I, Kryn, D, Kunze, P, Kurokawa, M, Kuromori, Y, Lastoria, C, Lazanu, I, Lehmann-Miotto, G, Leyton, M, Lira, N, Liubarska, M, Loo, K, Lorca, D, Lutz, P, Lux, T, Maalampi, J, Maire, G, Maki, M, Manenti, L, Margineanu, R, Marteau, J, Martin-Chassard, G, Mathez, H, Mazzucato, E, Misitano, G, Mladenov, D, Molina Bueno, L, Mosu, T, Mu, W, Murphy, S, Nakayoshi, K, Narita, S, Navas-Nicolas, D, Negishi, K, Nessi, M, Niculescu-Oglinzanu, M, Noto, F, Noury, A, Onishchuk, Y, Palomares, C, Parvu, M, Patzak, T, Penichot, Y, Pennacchio, E, Periale, L, Pessard, H, Pietropaolo, F, Pugnere, D, Radics, B, Redondo, D, Regenfus, C, Remoto, A, Resnati, F, Ristea, O, Rubbia, A, Saftoiu, A, Sakashita, K, Sanchez, F, Santos, C, Scarpelli, A, Schloesser, C, Sendai, K, Sergiampietri, F, Shahsavarani, S, Shoji, M, Sinclair, J, Soto-Oton, J, Stanca, D, Stefan, D, Sulej, R, Tanaka, M, Toboaru, V, Tonazzo, A, Tromeur, W, Trzaska, W, Uchida, T, Urda, L, Vannucci, F, Vasseur, G, Verdugo, A, Viant, T, Vihonen, S, Vilalte, S, Weber, M, Wu, S, Yu, J, Zambelli, L, Zito, M, Wa105 Collaboration T., Aimard B., Aizawa L., Alt C., Asaadi J., Auger M., Aushev V., Autiero D., Balaceanu A., Balik G., Balleyguier L., Bechetoille E., Belver D., Blebea-Apostu A. M., Bolognesi S., Bordoni S., Bourgeois N., Bourguille B., Bremer J., Brown G., Brunetti L., Brunetti G., Caiulo D., Calin M., Calvo E., Campanelli M., Cankocak K., Cantini C., Carlus B., Cautisanu B. M., Chalifour M., Chappuis A., Charitonidis N., Chatterjee A., Chiriacescuf A., Chiu P., Coan T., Conforti S., Cotte P., Crivelli P., Cuesta C., Dawson J., De Bonis I., De La Taille C., Delbart A., Di Luise S., Doizon F., Drancourt C., Duchesneau D., Dulucq F., Duval F., Emery S., Ereditato A., Falcone A., Fusshoeller K., Gallego-Ros A., Galymov V., Geffroy N., Gendotti A., Gherghel-Lascu A., Gil-Botella I., Girerd C., Gomoiu M. C., Gorodetzky P., Hamada E., Hanni R., Hasegawa T., Holin A., Horikawa S., Ikeno M., Jimenez S., Jipa A., Karolak M., Karyotakis Y., Kasai S., Kasami K., Kishishita T., Konari H., Kreslo I., Kryn D., Kunze P., Kurokawa M., Kuromori Y., Lastoria C., Lazanu I., Lehmann-Miotto G., Leyton M., Lira N., Liubarska M., Loo K., Lorca D., Lutz P., Lux T., Maalampi J., Maire G., Maki M., Manenti L., Margineanu R. M., Marteau J., Martin-Chassard G., Mathez H., Mazzucato E., Misitano G., Mladenov D., Molina Bueno L., Mosu T. S., Mu W., Murphy S., Nakayoshi K., Narita S., Navas-Nicolas D., Negishi K., Nessi M., Niculescu-Oglinzanu M., Noto F., Noury A., Onishchuk Y., Palomares C., Parvu M., Patzak T., Penichot Y., Pennacchio E., Periale L., Pessard H., Pietropaolo F., Pugnere D., Radics B., Redondo D., Regenfus C., Remoto A., Resnati F., Ristea O., Rubbia A., Saftoiu A., Sakashita K., Sanchez F., Santos C., Scarpelli A., Schloesser C., Sendai K., Sergiampietri F., Shahsavarani S., Shoji M., Sinclair J., Soto-Oton J., Stanca D. I., Stefan D., Sulej R., Tanaka M., Toboaru V., Tonazzo A., Tromeur W., Trzaska W. H., Uchida T., Urda L., Vannucci F., Vasseur G., Verdugo A., Viant T., Vihonen S., Vilalte S., Weber M., Wu S., Yu J., Zambelli L., and Zito M.

Abstract

We report the results of the analyses of the cosmic ray data collected with a 4 tonne (3×1×1 m3) active mass (volume) Liquid Argon Time-Projection Chamber (TPC) operated in a dual-phase mode. We present a detailed study of the TPC's response, its main detector parameters and performance. The results are important for the understanding and further developments of the dual-phase technology, thanks to the verification of key aspects, such as the extraction of electrons from liquid to gas and their amplification through the entire one square metre readout plain, gain stability, purity and charge sharing between readout views.

Published
2021

42. Parametric study of high-energy ring-shaped electron beams from a laser wakefield accelerator

Author

Maitrallain, A, Brunetti, E, Streeter, M J V, Kettle, B, Spesyvtsev, R, Vieux, G, Shahzad, M, Ersfeld, B, Yoffe, S R, Kornaszewski, A, Finlay, O, Ma, Y, Albert, F, Bourgeois, N, Dann, S J D, Lemos, N, Cipiccia, S, Cole, J M, González, I G, Willingale, L, Higginbotham, A, Hussein, A E, Šmid, M, Falk, K, Krushelnick, K, Lopes, N C, Gerstmayr, E, Lumsdon, C, Lundh, O, Mangles, S P D, Najmudin, Z, Rajeev, P P, Symes, D R, Thomas, A G R, Jaroszynski, D A, Maitrallain, A, Brunetti, E, Streeter, M J V, Kettle, B, Spesyvtsev, R, Vieux, G, Shahzad, M, Ersfeld, B, Yoffe, S R, Kornaszewski, A, Finlay, O, Ma, Y, Albert, F, Bourgeois, N, Dann, S J D, Lemos, N, Cipiccia, S, Cole, J M, González, I G, Willingale, L, Higginbotham, A, Hussein, A E, Šmid, M, Falk, K, Krushelnick, K, Lopes, N C, Gerstmayr, E, Lumsdon, C, Lundh, O, Mangles, S P D, Najmudin, Z, Rajeev, P P, Symes, D R, Thomas, A G R, and Jaroszynski, D A

Abstract

Laser wakefield accelerators commonly produce on-axis, low-divergence, high-energy electron beams. However, a high charge, annular shaped beam can be trapped outside the bubble and accelerated to high energies. Here we present a parametric study on the production of low-energy-spread, ultra-relativistic electron ring beams in a two-stage gas cell. Ring-shaped beams with energies higher than 750 MeV are observed simultaneously with on axis, continuously injected electrons. Often multiple ring shaped beams with different energies are produced and parametric studies to control the generation and properties of these structures were conducted. Particle tracking and particle-in-cell simulations are used to determine properties of these beams and investigate how they are formed and trapped outside the bubble by the wake produced by on-axis injected electrons. These unusual femtosecond duration, high-charge, high-energy, ring electron beams may find use in beam driven plasma wakefield accelerators and radiation sources.

Published
2022

43. Characterization of laser wakefield acceleration efficiency with octave spanning near-IR spectrum measurements

Author

Streeter, M.J.V., Ma, Y., Kettle, B., Dann, S.J.D., Gerstmayr, E., Albert, F., Bourgeois, N., Cipiccia, S., Cole, J.M., Gallardo González, I., Hussein, A.E., Jaroszynski, D.A., Falk, K., Krushelnick, K., Lemos, N., Lopes, N.C., Lumsdon, C., Lundh, O., Mangles, S.P.D., Najmudin, Z., Rajeev, P.P., Sandberg, R., Shahzad, M., Smid, M., Spesyvtsev, R., Symes, D.R., Vieux, G., Thomas, A.G.R., Streeter, M.J.V., Ma, Y., Kettle, B., Dann, S.J.D., Gerstmayr, E., Albert, F., Bourgeois, N., Cipiccia, S., Cole, J.M., Gallardo González, I., Hussein, A.E., Jaroszynski, D.A., Falk, K., Krushelnick, K., Lemos, N., Lopes, N.C., Lumsdon, C., Lundh, O., Mangles, S.P.D., Najmudin, Z., Rajeev, P.P., Sandberg, R., Shahzad, M., Smid, M., Spesyvtsev, R., Symes, D.R., Vieux, G., and Thomas, A.G.R.

Abstract

We report on experimental measurements of energy transfer efficiencies in a GeV-class laser wakefield accelerator. Both the transfer of energy from the laser to the plasma wakefield and from the plasma to the accelerated electron beam was diagnosed by simultaneous measurement of the deceleration of laser photons and the acceleration of electrons as a function of plasma length. The extraction efficiency, which we define as the ratio of the energy gained by the electron beam to the energy lost by the self-guided laser mode, was maximized at 19±3% by tuning the plasma density and length. The additional information provided by the octave-spanning laser spectrum measurement allows for independent optimization of the plasma efficiency terms, which is required for the key goal of improving the overall efficiency of laser wakefield accelerators.

Published
2022

44. Parametric study of high-energy ring-shaped electron beams from a laser wakefield accelerator

Author

Maitrallain, A., Brunetti, E., Streeter, M., Kettle, B., Spesyvtsev, R., Vieux, G., Shazhad, M., Ersfeld, B., Yoffe, S., Kornaszewski, A., Finlay, O., Ma, Y., Albert, F., Bourgeois, N., Jd Dann, S., Lemos, N., Cipiccia, S., M. Cole, J., Gallardo González, I., Higginbotham, A., Hussein, A., (0000-0002-7162-7500) Smid, M., (0000-0001-5975-776X) Falk, K., Krushelnick, K., C. Lopes, N., Gerstmayr, E., Lumsdon, C., Lundh, O., Mangles, S., Najmudin, Z., P. Rajeev, P., Symes, D., G. R. Thomas, A., A. Jaroszynski, D., Maitrallain, A., Brunetti, E., Streeter, M., Kettle, B., Spesyvtsev, R., Vieux, G., Shazhad, M., Ersfeld, B., Yoffe, S., Kornaszewski, A., Finlay, O., Ma, Y., Albert, F., Bourgeois, N., Jd Dann, S., Lemos, N., Cipiccia, S., M. Cole, J., Gallardo González, I., Higginbotham, A., Hussein, A., (0000-0002-7162-7500) Smid, M., (0000-0001-5975-776X) Falk, K., Krushelnick, K., C. Lopes, N., Gerstmayr, E., Lumsdon, C., Lundh, O., Mangles, S., Najmudin, Z., P. Rajeev, P., Symes, D., G. R. Thomas, A., and A. Jaroszynski, D.

Abstract

Laser wakefield accelerators commonly produce on-axis, low-divergence, high-energy electron beams. However, a high charge, annular shaped beam can be trapped outside the bubble and accelerated to high energies. Here we present a parametric study on the production of low-energy-spread, ultra-relativistic electron ring beams in a two-stage gas cell. Ring-shaped beams with energies higher than 750 MeV are observed simultaneously with on axis, continuously injected electrons. Often multiple ring shaped beams with different energies are produced and parametric studies to control the generation and properties of these structures were conducted. Particle tracking and particle-in-cell simulations are used to determine properties of these beams and investigate how they are formed and trapped outside the bubble by the wake produced by on-axis injected electrons. These unusual femtosecond duration, high-charge, high-energy, ring electron beams may find use in beam driven plasma wakefield accelerators and radiation sources.

Published
2022

45. Characterization of laser wakefield acceleration efficiency with octave spanning near-IR spectrum measurements

Author

Streeter, M. J. V., Ma, Y., Kettle, B., Dann, S. J. D., Gerstmayr, E., Albert, F., Bourgeois, N., Cipiccia, S., Cole, J. M., Gallardo González, I., Hussein, A. E., Jaroszynski, D. A., (0000-0001-5975-776X) Falk, K., Krushelnick, K., Lemos, N., Lopes, N. C., Lumsdon, C., Lundh, O., Mangles, S. P. D., Najmudin, Z., Rajeev, P. P., Sandberg, R., Shahzad, M., (0000-0002-7162-7500) Smid, M., Spesyvtsev, R., Symes, D. R., Vieux, G., Thomas, A. G. R., Streeter, M. J. V., Ma, Y., Kettle, B., Dann, S. J. D., Gerstmayr, E., Albert, F., Bourgeois, N., Cipiccia, S., Cole, J. M., Gallardo González, I., Hussein, A. E., Jaroszynski, D. A., (0000-0001-5975-776X) Falk, K., Krushelnick, K., Lemos, N., Lopes, N. C., Lumsdon, C., Lundh, O., Mangles, S. P. D., Najmudin, Z., Rajeev, P. P., Sandberg, R., Shahzad, M., (0000-0002-7162-7500) Smid, M., Spesyvtsev, R., Symes, D. R., Vieux, G., and Thomas, A. G. R.

Abstract

We report on experimental measurements of energy transfer efficiencies in a GeV-class laser wakefield accelerator. Both the transfer of energy from the laser to the plasma wakefield and from the plasma to the accelerated electron beam was diagnosed by simultaneous measurement of the deceleration of laser photons and the acceleration of electrons as a function of plasma length. The extraction efficiency, which we define as the ratio of the energy gained by the electron beam to the energy lost by the self-guided laser mode, was maximized at 19±3% by tuning the plasma density and length. The additional information provided by the octave-spanning laser spectrum measurement allows for independent optimization of the plasma efficiency terms, which is required for the key goal of improving the overall efficiency of laser wakefield accelerators.

Published
2022

46. Data publication: Characterization of laser wakefield acceleration efficiency with octave spanning near-IR spectrum measurements

Author

Streeter, M. J. V., Ma, Y., Kettle, B., Dann, S. J. D., Gerstmayr, E., Albert, F., Bourgeois, N., Cipiccia, S., Cole, J. M., Gallardo González, I., Hussein, A. E., Jaroszynski, D. A., (0000-0001-5975-776X) Falk, K., Krushelnick, K., Lemos, N., Lopes, N. C., Lumsdon, C., Lundh, O., Mangles, S. P. D., Najmudin, Z., Rajeev, P. P., Sandberg, R., Shahzad, M., (0000-0002-7162-7500) Smid, M., Spesyvtsev, R., Symes, D. R., Vieux, G., Thomas, A. G. R., Streeter, M. J. V., Ma, Y., Kettle, B., Dann, S. J. D., Gerstmayr, E., Albert, F., Bourgeois, N., Cipiccia, S., Cole, J. M., Gallardo González, I., Hussein, A. E., Jaroszynski, D. A., (0000-0001-5975-776X) Falk, K., Krushelnick, K., Lemos, N., Lopes, N. C., Lumsdon, C., Lundh, O., Mangles, S. P. D., Najmudin, Z., Rajeev, P. P., Sandberg, R., Shahzad, M., (0000-0002-7162-7500) Smid, M., Spesyvtsev, R., Symes, D. R., Vieux, G., and Thomas, A. G. R.

Abstract

10.5281/zenodo.7188057

Published
2022

48. Performance study of a 3×1×1 m3 dual phase liquid Argon Time Projection Chamber exposed to cosmic rays

Author

Wa105 Collaboration T., Aimard B., Aizawa L., Alt C., Asaadi J., Auger M., Aushev V., Autiero D., Balaceanu A., Balik G., Balleyguier L., Bechetoille E., Belver D., Blebea-Apostu A. M., Bolognesi S., Bordoni S., Bourgeois N., Bourguille B., Bremer J., Brown G., Brunetti L., Brunetti G., Caiulo D., Calin M., Calvo E., Campanelli M., Cankocak K., Cantini C., Carlus B., Cautisanu B. M., Chalifour M., Chappuis A., Charitonidis N., Chatterjee A., Chiriacescuf A., Chiu P., Coan T., Conforti S., Cotte P., Crivelli P., Cuesta C., Dawson J., De Bonis I., De La Taille C., Delbart A., Di Luise S., Doizon F., Drancourt C., Duchesneau D., Dulucq F., Duval F., Emery S., Ereditato A., Falcone A., Fusshoeller K., Gallego-Ros A., Galymov V., Geffroy N., Gendotti A., Gherghel-Lascu A., Gil-Botella I., Girerd C., Gomoiu M. C., Gorodetzky P., Hamada E., Hanni R., Hasegawa T., Holin A., Horikawa S., Ikeno M., Jimenez S., Jipa A., Karolak M., Karyotakis Y., Kasai S., Kasami K., Kishishita T., Konari H., Kreslo I., Kryn D., Kunze P., Kurokawa M., Kuromori Y., Lastoria C., Lazanu I., Lehmann-Miotto G., Leyton M., Lira N., Liubarska M., Loo K., Lorca D., Lutz P., Lux T., Maalampi J., Maire G., Maki M., Manenti L., Margineanu R. M., Marteau J., Martin-Chassard G., Mathez H., Mazzucato E., Misitano G., Mladenov D., Molina Bueno L., Mosu T. S., Mu W., Murphy S., Nakayoshi K., Narita S., Navas-Nicolas D., Negishi K., Nessi M., Niculescu-Oglinzanu M., Noto F., Noury A., Onishchuk Y., Palomares C., Parvu M., Patzak T., Penichot Y., Pennacchio E., Periale L., Pessard H., Pietropaolo F., Pugnere D., Radics B., Redondo D., Regenfus C., Remoto A., Resnati F., Ristea O., Rubbia A., Saftoiu A., Sakashita K., Sanchez F., Santos C., Scarpelli A., Schloesser C., Sendai K., Sergiampietri F., Shahsavarani S., Shoji M., Sinclair J., Soto-Oton J., Stanca D. I., Stefan D., Sulej R., Tanaka M., Toboaru V., Tonazzo A., Tromeur W., Trzaska W. H., Uchida T., Urda L., Vannucci F., Vasseur G., Verdugo A., Viant T., Vihonen S., Vilalte S., Weber M., Wu S., Yu J., Zambelli L., Zito M., Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Institut de Physique des 2 Infinis de Lyon (IP2I Lyon), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Organisation de Micro-Électronique Générale Avancée (OMEGA), École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), AstroParticule et Cosmologie (APC (UMR_7164)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), WA105, Wa105 Collaboration, T, Aimard, B, Aizawa, L, Alt, C, Asaadi, J, Auger, M, Aushev, V, Autiero, D, Balaceanu, A, Balik, G, Balleyguier, L, Bechetoille, E, Belver, D, Blebea-Apostu, A, Bolognesi, S, Bordoni, S, Bourgeois, N, Bourguille, B, Bremer, J, Brown, G, Brunetti, L, Brunetti, G, Caiulo, D, Calin, M, Calvo, E, Campanelli, M, Cankocak, K, Cantini, C, Carlus, B, Cautisanu, B, Chalifour, M, Chappuis, A, Charitonidis, N, Chatterjee, A, Chiriacescuf, A, Chiu, P, Coan, T, Conforti, S, Cotte, P, Crivelli, P, Cuesta, C, Dawson, J, De Bonis, I, De La Taille, C, Delbart, A, Di Luise, S, Doizon, F, Drancourt, C, Duchesneau, D, Dulucq, F, Duval, F, Emery, S, Ereditato, A, Falcone, A, Fusshoeller, K, Gallego-Ros, A, Galymov, V, Geffroy, N, Gendotti, A, Gherghel-Lascu, A, Gil-Botella, I, Girerd, C, Gomoiu, M, Gorodetzky, P, Hamada, E, Hanni, R, Hasegawa, T, Holin, A, Horikawa, S, Ikeno, M, Jimenez, S, Jipa, A, Karolak, M, Karyotakis, Y, Kasai, S, Kasami, K, Kishishita, T, Konari, H, Kreslo, I, Kryn, D, Kunze, P, Kurokawa, M, Kuromori, Y, Lastoria, C, Lazanu, I, Lehmann-Miotto, G, Leyton, M, Lira, N, Liubarska, M, Loo, K, Lorca, D, Lutz, P, Lux, T, Maalampi, J, Maire, G, Maki, M, Manenti, L, Margineanu, R, Marteau, J, Martin-Chassard, G, Mathez, H, Mazzucato, E, Misitano, G, Mladenov, D, Molina Bueno, L, Mosu, T, Mu, W, Murphy, S, Nakayoshi, K, Narita, S, Navas-Nicolas, D, Negishi, K, Nessi, M, Niculescu-Oglinzanu, M, Noto, F, Noury, A, Onishchuk, Y, Palomares, C, Parvu, M, Patzak, T, Penichot, Y, Pennacchio, E, Periale, L, Pessard, H, Pietropaolo, F, Pugnere, D, Radics, B, Redondo, D, Regenfus, C, Remoto, A, Resnati, F, Ristea, O, Rubbia, A, Saftoiu, A, Sakashita, K, Sanchez, F, Santos, C, Scarpelli, A, Schloesser, C, Sendai, K, Sergiampietri, F, Shahsavarani, S, Shoji, M, Sinclair, J, Soto-Oton, J, Stanca, D, Stefan, D, Sulej, R, Tanaka, M, Toboaru, V, Tonazzo, A, Tromeur, W, Trzaska, W, Uchida, T, Urda, L, Vannucci, F, Vasseur, G, Verdugo, A, Viant, T, Vihonen, S, Vilalte, S, Weber, M, Wu, S, Yu, J, Zambelli, L, Zito, M, Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)

Subjects
Physics::Instrumentation and Detectors, Library science, argon: gas, 01 natural sciences, 7. Clean energy, Neutrino detector, Argon gas, Political science, Particle tracking detectors, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], media_common.cataloged_instance, Neutrino detectors, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], European union, 010306 general physics, Instrumentation, Mathematical Physics, media_common, 010308 nuclear & particles physics, Large detector systems for particle and astroparticle physics, Time projection Chambers (TPC), time projection chamber: liquid argon, Particle tracking detector, Time projection chamber, cosmic radiation, Large detector systems for particle and astroparticle physic, yield: stability, Liquid argon, performance
Abstract

This work would not have been possible without the support of the Swiss National Science Foundation, Switzerland; CEA and CNRS/IN2P3, France; KEK and the JSPS program, Japan; Ministerio de Ciencia e Innovacion in Spain under grants FPA2016-77347-C2, SEV-2016-0588 and MdM-2015-0509, Comunidad de Madrid, the CERCA program of the Generalitat de Catalunya and the fellowship (LCF/BQ/DI18/11660043) from "La Caixa" Foundation (ID 100010434); the Programme PNCDI III, CERN-RO, under Contract 2/2020, Romania; the U.S. Department of Energy under Grant No. DE-SC0011686. This project has received funding from the European Union's Horizon 2020 Research and Innovation program under Grant Agreement no. 654168. The authors are also grateful to the French government operated by the National Research Agency (ANR) for the LABEX Enigmass, LABEX Lyon Institute of Origins (ANR-10-LABX-0066) of the Universite de Lyon for its financial support within the program "Investissements d'Avenir" (ANR-11-IDEX-0007)., We report the results of the analyses of the cosmic ray data collected with a 4 tonne (3x1x1 m(3)) active mass (volume) Liquid Argon Time-Projection Chamber (TPC) operated in a dual-phase mode. We present a detailed study of the TPC's response, its main detector parameters and performance. The results are important for the understanding and further developments of the dual-phase technology, thanks to the verification of key aspects, such as the extraction of electrons from liquid to gas and their amplification through the entire one square metre readout plain, gain stability, purity and charge sharing between readout views., Swiss National Science Foundation (SNSF), French Atomic Energy Commission, Centre National de la Recherche Scientifique (CNRS), High Energy Accelerator Research Organization (KEK), Ministry of Education, Culture, Sports, Science and Technology, Japan (MEXT), Japan Society for the Promotion of Science, Spanish Government FPA2016-77347-C2 SEV-2016-0588, MdM-2015-0509, Comunidad de Madrid, CERCA program of the Generalitat de Catalunya, La Caixa Foundation LCF/BQ/DI18/11660043 100010434, Programme PNCDI III, Romania, CERN-RO, Romania 2/2020, United States Department of Energy (DOE) SC0011686, European Commission 654168, Universite de Lyon ANR-10-LABX-0066 ANR-11-IDEX-0007

Published
2021
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