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119 results on '"Curry, C. B."'

2. 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

3. Setup for meV-resolution inelastic X-ray scattering measurements at the Matter in Extreme Conditions Endstation at the LCLS

Author

McBride, E. E., White, T. G., Descamps, A., Fletcher, L. B., Appel, K., Condamine, F., Curry, C. B., Dallari, F., Funk, S., Galtier, E., Gauthier, M., Goede, S., Kim, J. B., Lee, H. J., Ofori-Okai, B. K., Oliver, M., Rigby, A., Schoenwaelder, C., Sun, P., Tschentscher, Th., Witte, B. B. L., Zastrau, U., Gregori, G., Nagler, B., Hastings, J., Glenzer, S. H., and Monaco, G.

Subjects
Physics - Instrumentation and Detectors
Abstract

We describe a setup for performing inelastic X-ray scattering measurements at the Matter in Extreme Conditions (MEC) endstation of the Linac Coherent Light Source (LCLS). This technique is capable of performing high-, meV-resolution measurements of dynamic ion features in both crystalline and non-crystalline materials. A four-bounce silicon (533) monochromator was used in conjunction with three silicon (533) diced crystal analyzers to provide an energy resolution of ~50 meV over a range of ~500 meV in single shot measurements. In addition to the instrument resolution function, we demonstrate the measurement of longitudinal acoustic phonon modes in polycrystalline diamond. Furthermore, this setup may be combined with the high intensity laser drivers available at MEC to create warm dense matter, and subsequently measure ion acoustic modes., Comment: Proceedings for High Temperature Plasma Diagnostics

Published
2018
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6. 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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7. Ultrafast time-resolved 2D imaging of laser-driven fast electron transport in solid density matter using an x-ray free electron laser

Author

Sawada, H., primary, Yabuuchi, T., additional, Higashi, N., additional, Iwasaki, T., additional, Kawasaki, K., additional, Maeda, Y., additional, Izumi, T., additional, Nakagawa, Y., additional, Shigemori, K., additional, Sakawa, Y., additional, Curry, C. B., additional, Frost, M., additional, Iwata, N., additional, Ogitsu, T., additional, Sueda, K., additional, Togashi, T., additional, Glenzer, S. H., additional, Kemp, A. J., additional, Ping, Y., additional, and Sentoku, Y., additional

Published
2023
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8. High deuteron and neutron yields from the interaction of a petawatt laser with a cryogenic deuterium jet

Author

Jiao, X., Curry, C. B., Gauthier, M., Chou, H.-G. J., Fiuza, F., Kim, J. B., Phan, D. D., McCary, E., Galtier, E. C., Dyer, G. M., Ofori-Okai, B. K., Labun, L., Labun, O. Z., Schoenwaelder, C., Roycroft, R., Tiwari, G., Glenn, G. D., Treffert, F., Glenzer, S. H., Hegelich, B. M., Jiao, X., Curry, C. B., Gauthier, M., Chou, H.-G. J., Fiuza, F., Kim, J. B., Phan, D. D., McCary, E., Galtier, E. C., Dyer, G. M., Ofori-Okai, B. K., Labun, L., Labun, O. Z., Schoenwaelder, C., Roycroft, R., Tiwari, G., Glenn, G. D., Treffert, F., Glenzer, S. H., and Hegelich, B. M.

Abstract

A compact high-flux, short-pulse neutron source would have applications from nuclear astrophysics to cancer therapy. Laser-driven neutron sources can achieve fluxes much higher than spallation and reactor neutron sources by reducing the volume and time in which the neutron-producing reactions occur by orders of magnitude. We report progress towards an efficient laser-driven neutron source in experiments with a cryogenic deuterium jet on the Texas Petawatt laser. Neutrons were produced both by laser-accelerated multi-MeV deuterons colliding with Be and mixed metallic catchers and by d (d,n)³He fusion reactions within the jet. We observed deuteron yields of 10¹³/shot in quasi-Maxwellian distributions carrying ∼ 8 − 10 % of the input laser energy. We obtained neutron yields greater than 10¹⁰/shot and found indications of a deuteron-deuteron fusion neutron source with high peak flux (> 10²² cm⁻² s⁻¹). The estimated fusion neutron yield in our experiment is one order of magnitude higher than any previous laser-induced dd fusion reaction. Though many technical challenges will have to be overcome to convert this proof-of-principle experiment into a consistent ultra-high flux neutron source, the neutron fluxes achieved here suggest laser-driven neutron sources can support laboratory study of the rapid neutron-capture process, which is otherwise thought to occur only in astrophysical sites such as core-collapse supernova, and binary neutron star mergers.

Published
2023

9. Ultra-short pulse laser acceleration of protons to 80 MeV from cryogenic hydrogen jets tailored to near-critical density

Author

(0000-0001-6200-6406) Rehwald, M., (0000-0002-6928-2048) Assenbaum, S., (0000-0003-1739-0159) Bernert, C., (0000-0002-9859-2408) Brack, F.-E., (0000-0002-8258-3881) Bussmann, M., (0000-0002-5845-000X) Cowan, T., Curry, C. B., Fiuza, F., Garten, M., (0000-0002-6914-4083) Gaus, L., Gauthier, M., Göde, S., Göthel, I., Glenzer, S. H., (0000-0003-1184-2097) Huang, L., Huebl, A., Kim, J. B., (0000-0003-4861-5584) Kluge, T., (0000-0002-0638-6990) Kraft, S., (0000-0002-0275-9892) Kroll, F., (0000-0002-9556-0662) Metzkes-Ng, J., Miethlinger, T., (0000-0001-7858-0007) Löser, M., Obst-Huebl, L., (0000-0003-4962-2153) Reimold, M., (0000-0003-4400-1315) Schlenvoigt, H.-P., Schoenwaelder, C., (0000-0003-0390-7671) Schramm, U., (0000-0002-4697-3014) Siebold, M., Treffert, F., Yang, L., (0000-0002-3727-7017) Ziegler, T., (0000-0003-3926-409X) Zeil, K., (0000-0001-6200-6406) Rehwald, M., (0000-0002-6928-2048) Assenbaum, S., (0000-0003-1739-0159) Bernert, C., (0000-0002-9859-2408) Brack, F.-E., (0000-0002-8258-3881) Bussmann, M., (0000-0002-5845-000X) Cowan, T., Curry, C. B., Fiuza, F., Garten, M., (0000-0002-6914-4083) Gaus, L., Gauthier, M., Göde, S., Göthel, I., Glenzer, S. H., (0000-0003-1184-2097) Huang, L., Huebl, A., Kim, J. B., (0000-0003-4861-5584) Kluge, T., (0000-0002-0638-6990) Kraft, S., (0000-0002-0275-9892) Kroll, F., (0000-0002-9556-0662) Metzkes-Ng, J., Miethlinger, T., (0000-0001-7858-0007) Löser, M., Obst-Huebl, L., (0000-0003-4962-2153) Reimold, M., (0000-0003-4400-1315) Schlenvoigt, H.-P., Schoenwaelder, C., (0000-0003-0390-7671) Schramm, U., (0000-0002-4697-3014) Siebold, M., Treffert, F., Yang, L., (0000-0002-3727-7017) Ziegler, T., and (0000-0003-3926-409X) Zeil, K.

Abstract

Laser plasma-based particle accelerators attract great interest in fields where conventional accelerators reach limits based on size, cost or beam parameters. Despite the fact that particle in cell simulations have predicted several advantageous ion acceleration schemes, laser accelerators have not yet reached their full potential in producing simultaneous high-radiation doses at high particle energies. The most stringent limitation is the lack of a suitable high-repetition rate target that also provides a high degree of control of the plasma conditions required to access these advanced regimes. Here, we demonstrate that the interaction of petawatt-class laser pulses with a pre-formed micrometer-sized cryogenic hydrogen jet plasma overcomes these limitations enabling tailored density scans from the solid to the underdense regime. Our proof-of-concept experiment demonstrates that the near-critical plasma density profile produces proton energies of up to 80 MeV. Based on hydrodynamic and three-dimensional particle in cell simulations, transition between different acceleration schemes are shown, suggesting enhanced proton acceleration at the relativistic transparency front for the optimal case.

Published
2023

10. Transient Laser-Induced Breakdown of Dielectrics in Ultrarelativistic Laser-Solid Interactions

Author

(0000-0003-1739-0159) Bernert, C., (0000-0002-6928-2048) Assenbaum, S., (0000-0002-1919-8585) Bock, S., (0000-0002-9859-2408) Brack, F.-E., (0000-0002-5845-000X) Cowan, T., Curry, C. B., (0000-0001-6994-2475) Garten, M., (0000-0002-6914-4083) Gaus, L., Gauthier, M., Gebhardt, R., GöDe, S., Glenzer, S. H., Helbig, U., (0000-0003-4861-5584) Kluge, T., (0000-0002-0638-6990) Kraft, S., (0000-0002-0275-9892) Kroll, F., Obst-Huebl, L., (0000-0002-4738-6436) Püschel, T., (0000-0001-6200-6406) Rehwald, M., (0000-0003-4400-1315) Schlenvoigt, H.-P., Schoenwaelder, C., (0000-0003-0390-7671) Schramm, U., Treffert, F., (0000-0002-2828-5373) Vescovi Pinochet, M. A., (0000-0002-3727-7017) Ziegler, T., (0000-0003-3926-409X) Zeil, K., (0000-0003-1739-0159) Bernert, C., (0000-0002-6928-2048) Assenbaum, S., (0000-0002-1919-8585) Bock, S., (0000-0002-9859-2408) Brack, F.-E., (0000-0002-5845-000X) Cowan, T., Curry, C. B., (0000-0001-6994-2475) Garten, M., (0000-0002-6914-4083) Gaus, L., Gauthier, M., Gebhardt, R., GöDe, S., Glenzer, S. H., Helbig, U., (0000-0003-4861-5584) Kluge, T., (0000-0002-0638-6990) Kraft, S., (0000-0002-0275-9892) Kroll, F., Obst-Huebl, L., (0000-0002-4738-6436) Püschel, T., (0000-0001-6200-6406) Rehwald, M., (0000-0003-4400-1315) Schlenvoigt, H.-P., Schoenwaelder, C., (0000-0003-0390-7671) Schramm, U., Treffert, F., (0000-0002-2828-5373) Vescovi Pinochet, M. A., (0000-0002-3727-7017) Ziegler, T., and (0000-0003-3926-409X) Zeil, K.

Abstract

For high-intensity laser-solid interactions, the absolute density and surface density gradients of the target at the arrival of the ultra-relativistic laser peak are critical parameters. Accurate modeling of the leading edge-driven target pre-expansion is desired to strengthen the predictive power of associated computer simulations. The transition from an initial solid state to a plasma state, i.e., the breakdown of the solid, defines the starting point of the subsequent target pre-expansion. In this work, we report on the time-resolved observation of transient laser-induced breakdown (LIB) during the leading edge of high-intensity petawatt-class laser pulses with peak intensities of up to 5.7 × 10^21 W/cm^2 in interaction with dielectric cryogenic hydrogen jet targets. LIB occurs much earlier than what is typically expected following the concept of barrier suppression ionization. The observation is explained by comparing a characterization study of target specific LIB thresholds with laser contrast measurements. The results demonstrate the relevance of the laser pulse duration dependence of LIB for high-intensity laser-solid interactions. We provide an effective approach to determine the onset of LIB and thereby the starting point of target pre-expansion in other laser-target systems.

Published
2023

11. Source Data: Ultra-short pulse laser acceleration of protons to 80 MeV from cryogenic hydrogen jets tailored to near-critical density

Author

(0000-0001-6200-6406) Rehwald, M., (0000-0002-6928-2048) Assenbaum, S., (0000-0003-1739-0159) Bernert, C., (0000-0002-9859-2408) Brack, F.-E., (0000-0002-8258-3881) Bussmann, M., (0000-0002-5845-000X) Cowan, T., (0000-0001-8756-181X) Curry, C. B., (0000-0002-8502-5535) Fiuza, F., (0000-0001-6994-2475) Garten, M., (0000-0002-6914-4083) Gaus, L., (0000-0001-6608-9325) Gauthier, M., Göde, S., Göthel, I., (0000-0001-9112-0558) Glenzer, S. H., (0000-0003-1184-2097) Huang, L., (0000-0003-1943-7141) Hübl, A., Kim, J. B., (0000-0003-4861-5584) Kluge, T., (0000-0002-0638-6990) Kraft, S., (0000-0002-0275-9892) Kroll, F., (0000-0002-9556-0662) Metzkes-Ng, J., Miethlinger, T., (0000-0001-7858-0007) Löser, M., (0000-0001-9236-8037) Obst-Huebl, L., (0000-0003-4962-2153) Reimold, M., (0000-0003-4400-1315) Schlenvoigt, H.-P., (0000-0002-6181-4054) Schoenwaelder, C., (0000-0003-0390-7671) Schramm, U., (0000-0002-4697-3014) Siebold, M., (0000-0003-1277-4241) Treffert, F., Yang, L., (0000-0002-3727-7017) Ziegler, T., (0000-0003-3926-409X) Zeil, K., (0000-0001-6200-6406) Rehwald, M., (0000-0002-6928-2048) Assenbaum, S., (0000-0003-1739-0159) Bernert, C., (0000-0002-9859-2408) Brack, F.-E., (0000-0002-8258-3881) Bussmann, M., (0000-0002-5845-000X) Cowan, T., (0000-0001-8756-181X) Curry, C. B., (0000-0002-8502-5535) Fiuza, F., (0000-0001-6994-2475) Garten, M., (0000-0002-6914-4083) Gaus, L., (0000-0001-6608-9325) Gauthier, M., Göde, S., Göthel, I., (0000-0001-9112-0558) Glenzer, S. H., (0000-0003-1184-2097) Huang, L., (0000-0003-1943-7141) Hübl, A., Kim, J. B., (0000-0003-4861-5584) Kluge, T., (0000-0002-0638-6990) Kraft, S., (0000-0002-0275-9892) Kroll, F., (0000-0002-9556-0662) Metzkes-Ng, J., Miethlinger, T., (0000-0001-7858-0007) Löser, M., (0000-0001-9236-8037) Obst-Huebl, L., (0000-0003-4962-2153) Reimold, M., (0000-0003-4400-1315) Schlenvoigt, H.-P., (0000-0002-6181-4054) Schoenwaelder, C., (0000-0003-0390-7671) Schramm, U., (0000-0002-4697-3014) Siebold, M., (0000-0003-1277-4241) Treffert, F., Yang, L., (0000-0002-3727-7017) Ziegler, T., and (0000-0003-3926-409X) Zeil, K.

Abstract

Data for all figures of publication: " Ultra-short pulse laser acceleration of protons to 80 MeV from cryogenic hydrogen jets tailored to near-critical density". The folder structure is adapted to match the figures in the publication.

Published
2023

12. High deuteron and neutron yields from the interaction of a petawatt laser with a cryogenic deuterium jet

Author

Jiao, X., primary, Curry, C. B., additional, Gauthier, M., additional, Chou, H.-G. J., additional, Fiuza, F., additional, Kim, J. B., additional, Phan, D. D., additional, McCary, E., additional, Galtier, E. C., additional, Dyer, G. M., additional, Ofori-Okai, B. K., additional, Labun, L., additional, Labun, O. Z., additional, Schoenwaelder, C., additional, Roycroft, R., additional, Tiwari, G., additional, Glenn, G. D., additional, Treffert, F., additional, Glenzer, S. H., additional, and Hegelich, B. M., additional

Published
2023
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14. 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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15. 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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17. High-repetition-rate, multi-MeV deuteron acceleration from converging heavy water microjets at laser intensities of 1021 W/cm2

Author

Treffert, F., primary, Curry, C. B., additional, Chou, H.-G. J., additional, Crissman, C. J., additional, DePonte, D. P., additional, Fiuza, F., additional, Glenn, G. D., additional, Hollinger, R. C., additional, Nedbailo, R., additional, Park, J., additional, Schoenwaelder, C., additional, Song, H., additional, Wang, S., additional, Rocca, J. J., additional, Roth, M., additional, Glenzer, S. H., additional, and Gauthier, M., additional

Published
2022
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18. Towards High-Repetition Rate Petawatt Laser Experiments with Cryogenic Jets Using a Mechanical Chopper System

Author

(0000-0001-6200-6406) Rehwald, M., Assenbaum, S., (0000-0003-1739-0159) Bernert, C., (0000-0001-8756-181X) Curry, C. B., Gauthier, M., Glenzer, S. H., Göde, S., Schoenwaelder, C., Treffert, F., (0000-0003-0390-7671) Schramm, U., (0000-0003-3926-409X) Zeil, K., (0000-0001-6200-6406) Rehwald, M., Assenbaum, S., (0000-0003-1739-0159) Bernert, C., (0000-0001-8756-181X) Curry, C. B., Gauthier, M., Glenzer, S. H., Göde, S., Schoenwaelder, C., Treffert, F., (0000-0003-0390-7671) Schramm, U., and (0000-0003-3926-409X) Zeil, K.

Abstract

Laser-plasma based ion accelerators require suitable high-repetition rate target systems that enable systematic studies at controlled plasma conditions and application-relevant particle flux. Self-refreshing, micrometer-sized cryogenic jets have proven to be an ideal target platform. Yet, operation of such systems in the harsh environmental conditions of high power laser induced plasma experiments have turned out to be challenging. Here we report on recent experiments deploying a cryogenic hydrogen jet as a source of pure proton beams generated with the PW-class ultrashort pulse laser DRACO. Damage to the jet target system during application of full energy laser shots was prevented by implementation of a mechanical chopper system interrupting the direct line of sight between the laser plasma interaction zone and the jet source.

Published
2022

19. Ultra-short pulse laser-driven acceleration of protons to 80 MeV from density tailored cryogenic hydrogen jets

Author

(0000-0001-6200-6406) Rehwald, M., Bernert, C., (0000-0002-9859-2408) Brack, F.-E., (0000-0002-5845-000X) Cowan, T., Curry, C. B., Fiuza, F., (0000-0001-6994-2475) Garten, M., (0000-0002-6914-4083) Gaus, L., Gauthier, M., Göde, S., Göthel, I., Glenzer, S. H., (0000-0003-1943-7141) Hübl, A., Kim, J. B., (0000-0003-4861-5584) Kluge, T., (0000-0002-0638-6990) Kraft, S., (0000-0002-0275-9892) Kroll, F., (0000-0002-9556-0662) Metzkes-Ng, J., (0000-0001-7858-0007) Löser, M., (0000-0001-9236-8037) Obst-Hübl, L., (0000-0003-4962-2153) Reimold, M., (0000-0003-4400-1315) Schlenvoigt, H.-P., Schoenwaelder, C., (0000-0003-0390-7671) Schramm, U., (0000-0002-4697-3014) Siebold, M., Treffert, F., (0000-0002-3727-7017) Ziegler, T., (0000-0003-3926-409X) Zeil, K., (0000-0001-6200-6406) Rehwald, M., Bernert, C., (0000-0002-9859-2408) Brack, F.-E., (0000-0002-5845-000X) Cowan, T., Curry, C. B., Fiuza, F., (0000-0001-6994-2475) Garten, M., (0000-0002-6914-4083) Gaus, L., Gauthier, M., Göde, S., Göthel, I., Glenzer, S. H., (0000-0003-1943-7141) Hübl, A., Kim, J. B., (0000-0003-4861-5584) Kluge, T., (0000-0002-0638-6990) Kraft, S., (0000-0002-0275-9892) Kroll, F., (0000-0002-9556-0662) Metzkes-Ng, J., (0000-0001-7858-0007) Löser, M., (0000-0001-9236-8037) Obst-Hübl, L., (0000-0003-4962-2153) Reimold, M., (0000-0003-4400-1315) Schlenvoigt, H.-P., Schoenwaelder, C., (0000-0003-0390-7671) Schramm, U., (0000-0002-4697-3014) Siebold, M., Treffert, F., (0000-0002-3727-7017) Ziegler, T., and (0000-0003-3926-409X) Zeil, K.

Abstract

Laser plasma based particle accelerators have attracted great interest in fields where conventional accelerators reach limits based on size, cost or beam parameters. Designing future laser ion accelerators requires a high degree of control of the advanced acceleration schemes involved and predictive modelling capabilities. Here, we investigate the interaction of petawatt class laser pulses with a micrometer sized cryogenic hydrogen jet target. Controlled pre-expansion of the target by low intensity pre-pulses allowed for tailored density scans over more than two orders of magnitude. On-shot target characterization using two-color optical probing provided precise starting conditions for numerical simulations. For the optimal target density profile in the near critical regime proton energies of up to 80 MeV were observed which represents a two-fold increase with respect to the initial solid target case. Three-dimensional particle in cell simulations confirmed the transition between different acceleration mechanisms involved and suggested the magnetic-vortex regime to be responsible for the highest proton energies achieved.

Published
2022

20. Off-harmonic optical probing of high-intensity laser-plasma expansion dynamics in solid-density hydrogen jets

Author

(0000-0003-1739-0159) Bernert, C., (0000-0002-6928-2048) Assenbaum, S., (0000-0002-9859-2408) Brack, F.-E., (0000-0002-5845-000X) Cowan, T., Curry, C. B., (0000-0001-6994-2475) Garten, M., (0000-0002-6914-4083) Gaus, L., Gauthier, M., GöDe, S., Göthel, I., Glenzer, S. H., (0000-0003-4861-5584) Kluge, T., (0000-0002-0638-6990) Kraft, S., (0000-0002-0275-9892) Kroll, F., (0000-0002-8145-5837) Kuntzsch, M., (0000-0002-9556-0662) Metzkes-Ng, J., (0000-0001-7858-0007) Löser, M., (0000-0001-9236-8037) Obst-Hübl, L., (0000-0001-6200-6406) Rehwald, M., (0000-0003-4400-1315) Schlenvoigt, H.-P., Schoenwaelder, C., (0000-0003-0390-7671) Schramm, U., (0000-0002-4697-3014) Siebold, M., Treffert, F., (0000-0002-3727-7017) Ziegler, T., (0000-0003-3926-409X) Zeil, K., (0000-0003-1739-0159) Bernert, C., (0000-0002-6928-2048) Assenbaum, S., (0000-0002-9859-2408) Brack, F.-E., (0000-0002-5845-000X) Cowan, T., Curry, C. B., (0000-0001-6994-2475) Garten, M., (0000-0002-6914-4083) Gaus, L., Gauthier, M., GöDe, S., Göthel, I., Glenzer, S. H., (0000-0003-4861-5584) Kluge, T., (0000-0002-0638-6990) Kraft, S., (0000-0002-0275-9892) Kroll, F., (0000-0002-8145-5837) Kuntzsch, M., (0000-0002-9556-0662) Metzkes-Ng, J., (0000-0001-7858-0007) Löser, M., (0000-0001-9236-8037) Obst-Hübl, L., (0000-0001-6200-6406) Rehwald, M., (0000-0003-4400-1315) Schlenvoigt, H.-P., Schoenwaelder, C., (0000-0003-0390-7671) Schramm, U., (0000-0002-4697-3014) Siebold, M., Treffert, F., (0000-0002-3727-7017) Ziegler, T., and (0000-0003-3926-409X) Zeil, K.

Abstract

Due to the non-linear nature of relativistic laser induced plasma processes, the development of laser-plasma accelerators requires precise numerical modeling. Especially high intensity laser-solid interactions are sensitive to the temporal laser rising edge and the predictive capability of simulations suffers from incomplete information on the plasma state at the onset of the relativistic interaction. Experimental diagnostics utilizing ultra-fast optical backlighters can help to ease this challenge by providing temporally resolved inside into the plasma density evolution. We present the successful implementation of an off-harmonic optical probe laser setup to investigate the interaction of a high-intensity laser at 5.4E21 W / cm^2 peak intensity with a solid-density cylindrical cryogenic hydrogen jet target of 5 um diameter as a target test bed. The temporal synchronization of pump and probe laser, spectral filtering and spectrally resolved data of the parasitic plasma self-emission are discussed. The probing technique mitigates detector saturation by self-emission and allowed to record a temporal scan of shadowgraphy data revealing details of the target ionization and expansion dynamics that were so far not accessible for the given laser intensity. Plasma expansion speeds of up to (2.3+-0.4)E7 m / s followed by full target transparency at 1.4 ps after the high intensity laser peak are observed. A three dimensional particle-in-cell simulation initiated with the diagnosed target pre-expansion at -0.2 ps and post processed by ray tracing simulations supports the experimental observations and demonstrates the capability of time resolved optical diagnostics to provide quantitative input and feedback to the numerical treatment within the time frame of the relativistic laser-plasma interaction.

Published
2022

21. Data publication: Towards High-Repetition Rate Petawatt Laser Experiments with Cryogenic Jets Using a Mechanical Chopper System

Author

(0000-0001-6200-6406) Rehwald, M., (0000-0002-6928-2048) Assenbaum, S., (0000-0003-1739-0159) Bernert, C., (0000-0001-8756-181X) Curry, C. B., Gauthier, M., Glenzer, S. H., Göde, S., Schoenwaelder, C., Treffert, F., (0000-0003-0390-7671) Schramm, U., (0000-0003-3926-409X) Zeil, K., (0000-0001-6200-6406) Rehwald, M., (0000-0002-6928-2048) Assenbaum, S., (0000-0003-1739-0159) Bernert, C., (0000-0001-8756-181X) Curry, C. B., Gauthier, M., Glenzer, S. H., Göde, S., Schoenwaelder, C., Treffert, F., (0000-0003-0390-7671) Schramm, U., and (0000-0003-3926-409X) Zeil, K.

Abstract

Rohdaten und Ausgewertete Messungen, die in der Publikation dargestellt sind.

Published
2022

25. Ultra-short pulse laser-driven acceleration of protons to 80 MeV from density tailored cryogenic hydrogen jets

Author

Rehwald, M., Bernert, C., Brack, F.-E., Cowan, T., Curry, C. B., Fiuza, F., Garten, M., Gaus, L., Gauthier, M., Göde, S., Göthel, I., Glenzer, S. H., Hübl, A., Kim, J. B., Kluge, T., Kraft, S., Kroll, F., Metzkes-Ng, J., Löser, M., Obst-Hübl, L., Reimold, M., Schlenvoigt, H.-P., Schoenwaelder, C., Schramm, U., Siebold, M., Treffert, F., Ziegler, T., and Zeil, K.

Abstract

Laser plasma based particle accelerators have attracted great interest in fields where conventional accelerators reach limits based on size, cost or beam parameters. Designing future laser ion accelerators requires a high degree of control of the advanced acceleration schemes involved and predictive modelling capabilities. Here, we investigate the interaction of petawatt class laser pulses with a micrometer sized cryogenic hydrogen jet target. Controlled pre-expansion of the target by low intensity pre-pulses allowed for tailored density scans over more than two orders of magnitude. On-shot target characterization using two-color optical probing provided precise starting conditions for numerical simulations. For the optimal target density profile in the near critical regime proton energies of up to 80 MeV were observed which represents a two-fold increase with respect to the initial solid target case. Three-dimensional particle in cell simulations confirmed the transition between different acceleration mechanisms involved and suggested the magnetic-vortex regime to be responsible for the highest proton energies achieved.

Published
2022

26. Off-harmonic optical probing of high-intensity laser-plasma expansion dynamics in solid-density hydrogen jets

Author

Bernert, C., Assenbaum, S., Brack, F.-E., Cowan, T., Curry, C. B., Garten, M., Gaus, L., Gauthier, M., GöDe, S., Göthel, I., Glenzer, S. H., Kluge, T., Kraft, S., Kroll, F., Kuntzsch, M., Metzkes-Ng, J., Löser, M., Obst-Hübl, L., Rehwald, M., Schlenvoigt, H.-P., Schoenwaelder, C., Schramm, U., Siebold, M., Treffert, F., Ziegler, T., and Zeil, K.

Subjects
optical probing, ion accleration, ĥigh intensity laser
Abstract

Due to the non-linear nature of relativistic laser induced plasma processes, the development of laser-plasma accelerators requires precise numerical modeling. Especially high intensity laser-solid interactions are sensitive to the temporal laser rising edge and the predictive capability of simulations suffers from incomplete information on the plasma state at the onset of the relativistic interaction. Experimental diagnostics utilizing ultra-fast optical backlighters can help to ease this challenge by providing temporally resolved inside into the plasma density evolution. We present the successful implementation of an off-harmonic optical probe laser setup to investigate the interaction of a high-intensity laser at 5.4E21 W / cm^2 peak intensity with a solid-density cylindrical cryogenic hydrogen jet target of 5 um diameter as a target test bed. The temporal synchronization of pump and probe laser, spectral filtering and spectrally resolved data of the parasitic plasma self-emission are discussed. The probing technique mitigates detector saturation by self-emission and allowed to record a temporal scan of shadowgraphy data revealing details of the target ionization and expansion dynamics that were so far not accessible for the given laser intensity. Plasma expansion speeds of up to (2.3+-0.4)E7 m / s followed by full target transparency at 1.4 ps after the high intensity laser peak are observed. A three dimensional particle-in-cell simulation initiated with the diagnosed target pre-expansion at -0.2 ps and post processed by ray tracing simulations supports the experimental observations and demonstrates the capability of time resolved optical diagnostics to provide quantitative input and feedback to the numerical treatment within the time frame of the relativistic laser-plasma interaction.

Published
2022

27. Observation of a highly conductive warm dense state of water with ultrafast pump–probe free-electron-laser measurements

Author

Chen, Z., primary, Na, X., additional, Curry, C. B., additional, Liang, S., additional, French, M., additional, Descamps, A., additional, DePonte, D. P., additional, Koralek, J. D., additional, Kim, J. B., additional, Lebovitz, S., additional, Nakatsutsumi, M., additional, Ofori-Okai, B. K., additional, Redmer, R., additional, Roedel, C., additional, Schörner, M., additional, Skruszewicz, S., additional, Sperling, P., additional, Toleikis, S., additional, Mo, M. Z., additional, and Glenzer, S. H., additional

Published
2021
Full Text
View/download PDF

28. Probing ultrafast laser plasma processes inside solids with resonant small angle X-ray scattering

Author

Gaus, L., Bischoff, L., Bussmann, M., Cunningham, E., Curry, C. B., E, Juncheng, Galtier, E., Gauthier, M., Laso García, A., Garten, M., Glenzer, S., Grenzer, J., Gutt, C., Hartley, N., Huang, L., Hübner, U., Kraus, D., Lee, H. J., McBride, E. E., Metzkes-Ng, J., Nagler, B., Nakatsutsumi, M., Nikl, J., Ota, M., Pelka, A., Prencipe, I., Randolph, L., Rödel, M., Sakawa, Y., Schlenvoigt, H.-P., Smid, M., Treffert, F., Voigt, K., Zeil, K., Cowan, T., Schramm, U., and Kluge, T.

Abstract

Extreme states of matter exist throughout the universe e.g. inside planetary cores, stars or astrophysical jets. Such conditions can be generated in the laboratory in the interaction of powerful lasers with solids. Yet, the measurement of the subsequent plasma dynamics with regard to density, temperature and ionization is a major experimental challenge. However, ultra-short X-ray pulses provided by X-ray free electron lasers (XFELs) allow for dedicated studies, which are highly relevant to study laboratory astrophysics, laser-fusion research or laser-plasma-based particle acceleration. Here, we report on experiments that employ a novel ultrafast method, which allows to simultaneously access temperature, ionization state and nanometer scale expansion dynamics in high-intensity laser-driven solid-density plasmas with a single X-ray detector. Using this method, we gain access to the expansion dynamics of a buried layer in compound samples, and we measure opacity changes arising from bound-bound resonance transitions in highly ionized copper. The presence of highly ionized copper leads to a temperature estimate of at least 2 million Kelvin already after the first 100 femtoseconds following the high-intensity laser irradiation. More specifically, we make use of asymmetries in small-angle X-ray scattering (SAXS) patterns, which arise from different spatial distributions of absorption and scattering cross sections in nanostructured grating samples when we tune an XFEL to atomic resonant energies of copper. Thereby, changes in asymmetry can be connected with the evolution of the plasma expansion and ionization dynamics. The potential of XFEL-based resonant SAXS to obtain three-dimensional ultrafast, nanoscopic information on density and opacity may offer a unique path for the characterization of dynamic processes in High Energy Density plasmas.

Published
2021

29. Resonant SAXS data used in publication: 'Probing ultrafast laser plasma processes inside solids with resonant small angle X-ray scattering'

Author

Gaus, L., Bischoff, L., Bussmann, M., Cunningham, E., Curry, C. B., E, Juncheng, Galtier, E., Gauthier, M., Laso García, A., Garten, M., Glenzer, S., Grenzer, J., Gutt, C., Hartley, N., Huang, L., Hübner, U., Kraus, D., Lee, H. J., McBride, E. E., Metzkes-Ng, J., Nagler, B., Nakatsutsumi, M., Nikl, J., Ota, M., Pelka, A., Prencipe, I., Randolph, L., Rödel, M., Sakawa, Y., Schlenvoigt, H.-P., Smid, M., Treffert, F., Voigt, K., Zeil, K., Cowan, T., Schramm, U., and Kluge, T.

Abstract

Resonant Small-angle x-ray scattering raw data obtained in measurements at MEC at LCLS and evalutation of the asymmetry in the scattering patterns. The data set is structured in case 1/Si-Cu-compound targets and case 2/Cu-only-targets as presented in the publication for on- and off-resonant XFEL probe energies.

Published
2021
Full Text
View/download PDF

30. Off-harmonic optical probing of high intensity laser interaction with solid-density cryogenic hydrogen jet targets

Author

Bernert, C., Albach, D., Assenbaum, S., Brack, F.-E., Bock, S., Curry, C. B., Garten, M., Gaus, L., Gauthier, M., Glenzer, S. H., Göde, S., Göthel, I., Kim, J. B., Kluge, T., Kraft, S., Kuntzsch, M., Löser, M., Metzkes-Ng, J., Obst-Hübl, L., Püschel, T., Schlenvoigt, H.-P., Schoenwaelder, C., Siebold, M., Treffert, F., Umlandt, M. E. P., Vescovi Pinochet, M. A., Zeil, K., Ziegler, T., Schramm, U., and Rehwald, M.

Subjects
optical probing, ion acceleration, high intensity laser
Abstract

High-intensity short-pulse lasers enable novel compact accelerator schemes for the generation of energetic ion beams. The experimental investigation of the process remains challenging due to the femtosecond timescale and micrometer size of the acceleration. Commonly, diagnostic results are explained by a comparison of the experimental findings with computationally expensive particle-in-cell simulations. Cryogenic hydrogen jet targets (~30 critical densities) with µm-scale transverse size are particularly well suited for this approach. Time-resolved diagnostics like optical probing can infer the state of the target at the initialization time of the simulation and benchmark the simulation results. Here we present the implementation of an off-harmonic optical probing setup at an experiment for laser proton acceleration with a cylindrical hydrogen jet target at the DRACO PW laser with plasma-mirror cleaned laser contrast. We show under which conditions the technique overcomes the problem of parasitic plasma self-emission, present technical aspects of the off-harmonic probing technique together with experimental results of the observed plasma dynamics.

Published
2021

31. Ultra-short pulse laser-driven acceleration of protons to 80 MeV from density tailored cryogenic hydrogen jets

Author

(0000-0001-6200-6406) Rehwald, M., Bernert, C., (0000-0002-9859-2408) Brack, F.-E., (0000-0002-5845-000X) Cowan, T., Curry, C. B., Fiuza, F., (0000-0001-6994-2475) Garten, M., (0000-0002-6914-4083) Gaus, L., Gauthier, M., Göde, S., Göthel, I., Glenzer, S. H., (0000-0003-1943-7141) Hübl, A., Kim, J. B., (0000-0003-4861-5584) Kluge, T., (0000-0002-0638-6990) Kraft, S., (0000-0002-0275-9892) Kroll, F., (0000-0002-9556-0662) Metzkes-Ng, J., (0000-0001-7858-0007) Löser, M., (0000-0001-9236-8037) Obst-Hübl, L., (0000-0003-4962-2153) Reimold, M., (0000-0003-4400-1315) Schlenvoigt, H.-P., Schoenwaelder, C., (0000-0003-0390-7671) Schramm, U., (0000-0002-4697-3014) Siebold, M., Treffert, F., (0000-0002-3727-7017) Ziegler, T., (0000-0003-3926-409X) Zeil, K., (0000-0001-6200-6406) Rehwald, M., Bernert, C., (0000-0002-9859-2408) Brack, F.-E., (0000-0002-5845-000X) Cowan, T., Curry, C. B., Fiuza, F., (0000-0001-6994-2475) Garten, M., (0000-0002-6914-4083) Gaus, L., Gauthier, M., Göde, S., Göthel, I., Glenzer, S. H., (0000-0003-1943-7141) Hübl, A., Kim, J. B., (0000-0003-4861-5584) Kluge, T., (0000-0002-0638-6990) Kraft, S., (0000-0002-0275-9892) Kroll, F., (0000-0002-9556-0662) Metzkes-Ng, J., (0000-0001-7858-0007) Löser, M., (0000-0001-9236-8037) Obst-Hübl, L., (0000-0003-4962-2153) Reimold, M., (0000-0003-4400-1315) Schlenvoigt, H.-P., Schoenwaelder, C., (0000-0003-0390-7671) Schramm, U., (0000-0002-4697-3014) Siebold, M., Treffert, F., (0000-0002-3727-7017) Ziegler, T., and (0000-0003-3926-409X) Zeil, K.

Abstract

Laser plasma based particle accelerators have attracted great interest in fields where conventional accelerators reach limits based on size, cost or beam parameters. Designing future laser ion accelerators requires a high degree of control of the advanced acceleration schemes involved and predictive modelling capabilities. Here, we investigate the interaction of petawatt class laser pulses with a micrometer sized cryogenic hydrogen jet target. Controlled pre-expansion of the target by low intensity pre-pulses allowed for tailored density scans over more than two orders of magnitude. On-shot target characterization using two-color optical probing provided precise starting conditions for numerical simulations. For the optimal target density profile in the near critical regime proton energies of up to 80 MeV were observed which represents a two-fold increase with respect to the initial solid target case. Three-dimensional particle in cell simulations confirmed the transition between different acceleration mechanisms involved and suggested the magnetic-vortex regime to be responsible for the highest proton energies achieved.

Published
2021

32. Probing ultrafast laser plasma processes inside solids with resonant small angle X-ray scattering

Author

(0000-0002-6914-4083) Gaus, L., (0000-0003-3968-7498) Bischoff, L., (0000-0002-8258-3881) Bussmann, M., (0000-0002-0976-4416) Cunningham, E., (0000-0001-8756-181X) Curry, C. B., E, Juncheng, Galtier, E., (0000-0001-6608-9325) Gauthier, M., (0000-0002-7671-0901) Laso García, A., (0000-0001-6994-2475) Garten, M., (0000-0001-9112-0558) Glenzer, S., Grenzer, J., Gutt, C., Hartley, N., (0000-0003-1184-2097) Huang, L., Hübner, U., (0000-0002-6350-4180) Kraus, D., Lee, H. J., McBride, E. E., (0000-0002-9556-0662) Metzkes-Ng, J., Nagler, B., (0000-0003-0868-4745) Nakatsutsumi, M., (0000-0003-0131-0628) Nikl, J., Ota, M., Pelka, A., (0000-0003-0931-1350) Prencipe, I., Randolph, L., Rödel, M., Sakawa, Y., (0000-0003-4400-1315) Schlenvoigt, H.-P., (0000-0002-7162-7500) Smid, M., (0000-0003-1277-4241) Treffert, F., (0000-0001-8090-2626) Voigt, K., (0000-0003-3926-409X) Zeil, K., (0000-0002-5845-000X) Cowan, T., (0000-0003-0390-7671) Schramm, U., (0000-0003-4861-5584) Kluge, T., (0000-0002-6914-4083) Gaus, L., (0000-0003-3968-7498) Bischoff, L., (0000-0002-8258-3881) Bussmann, M., (0000-0002-0976-4416) Cunningham, E., (0000-0001-8756-181X) Curry, C. B., E, Juncheng, Galtier, E., (0000-0001-6608-9325) Gauthier, M., (0000-0002-7671-0901) Laso García, A., (0000-0001-6994-2475) Garten, M., (0000-0001-9112-0558) Glenzer, S., Grenzer, J., Gutt, C., Hartley, N., (0000-0003-1184-2097) Huang, L., Hübner, U., (0000-0002-6350-4180) Kraus, D., Lee, H. J., McBride, E. E., (0000-0002-9556-0662) Metzkes-Ng, J., Nagler, B., (0000-0003-0868-4745) Nakatsutsumi, M., (0000-0003-0131-0628) Nikl, J., Ota, M., Pelka, A., (0000-0003-0931-1350) Prencipe, I., Randolph, L., Rödel, M., Sakawa, Y., (0000-0003-4400-1315) Schlenvoigt, H.-P., (0000-0002-7162-7500) Smid, M., (0000-0003-1277-4241) Treffert, F., (0000-0001-8090-2626) Voigt, K., (0000-0003-3926-409X) Zeil, K., (0000-0002-5845-000X) Cowan, T., (0000-0003-0390-7671) Schramm, U., and (0000-0003-4861-5584) Kluge, T.

Abstract

Extreme states of matter exist throughout the universe e.g. inside planetary cores, stars or astrophysical jets. Such conditions can be generated in the laboratory in the interaction of powerful lasers with solids. Yet, the measurement of the subsequent plasma dynamics with regard to density, temperature and ionization is a major experimental challenge. However, ultra-short X-ray pulses provided by X-ray free electron lasers (XFELs) allow for dedicated studies, which are highly relevant to study laboratory astrophysics, laser-fusion research or laser-plasma-based particle acceleration. Here, we report on experiments that employ a novel ultrafast method, which allows to simultaneously access temperature, ionization state and nanometer scale expansion dynamics in high-intensity laser-driven solid-density plasmas with a single X-ray detector. Using this method, we gain access to the expansion dynamics of a buried layer in compound samples, and we measure opacity changes arising from bound-bound resonance transitions in highly ionized copper. The presence of highly ionized copper leads to a temperature estimate of at least 2 million Kelvin already after the first 100 femtoseconds following the high-intensity laser irradiation. More specifically, we make use of asymmetries in small-angle X-ray scattering (SAXS) patterns, which arise from different spatial distributions of absorption and scattering cross sections in nanostructured grating samples when we tune an XFEL to atomic resonant energies of copper. Thereby, changes in asymmetry can be connected with the evolution of the plasma expansion and ionization dynamics. The potential of XFEL-based resonant SAXS to obtain three-dimensional ultrafast, nanoscopic information on density and opacity may offer a unique path for the characterization of dynamic processes in High Energy Density plasmas.

Published
2021

33. Off-harmonic optical probing of high intensity laser interaction with solid-density cryogenic hydrogen jet targets

Author

(0000-0003-1739-0159) Bernert, C., (0000-0001-5602-3007) Albach, D., (0000-0002-6928-2048) Assenbaum, S., (0000-0002-9859-2408) Brack, F.-E., (0000-0002-1919-8585) Bock, S., Curry, C. B., (0000-0001-6994-2475) Garten, M., (0000-0002-6914-4083) Gaus, L., Gauthier, M., Glenzer, S. H., Göde, S., Göthel, I., Kim, J. B., (0000-0003-4861-5584) Kluge, T., (0000-0002-0638-6990) Kraft, S., (0000-0002-8145-5837) Kuntzsch, M., (0000-0001-7858-0007) Löser, M., (0000-0002-9556-0662) Metzkes-Ng, J., (0000-0001-9236-8037) Obst-Hübl, L., (0000-0002-4738-6436) Püschel, T., (0000-0003-4400-1315) Schlenvoigt, H.-P., Schoenwaelder, C., (0000-0002-4697-3014) Siebold, M., Treffert, F., (0000-0001-7332-7395) Umlandt, M. E. P., (0000-0002-2828-5373) Vescovi Pinochet, M. A., (0000-0003-3926-409X) Zeil, K., (0000-0002-3727-7017) Ziegler, T., (0000-0003-0390-7671) Schramm, U., (0000-0001-6200-6406) Rehwald, M., (0000-0003-1739-0159) Bernert, C., (0000-0001-5602-3007) Albach, D., (0000-0002-6928-2048) Assenbaum, S., (0000-0002-9859-2408) Brack, F.-E., (0000-0002-1919-8585) Bock, S., Curry, C. B., (0000-0001-6994-2475) Garten, M., (0000-0002-6914-4083) Gaus, L., Gauthier, M., Glenzer, S. H., Göde, S., Göthel, I., Kim, J. B., (0000-0003-4861-5584) Kluge, T., (0000-0002-0638-6990) Kraft, S., (0000-0002-8145-5837) Kuntzsch, M., (0000-0001-7858-0007) Löser, M., (0000-0002-9556-0662) Metzkes-Ng, J., (0000-0001-9236-8037) Obst-Hübl, L., (0000-0002-4738-6436) Püschel, T., (0000-0003-4400-1315) Schlenvoigt, H.-P., Schoenwaelder, C., (0000-0002-4697-3014) Siebold, M., Treffert, F., (0000-0001-7332-7395) Umlandt, M. E. P., (0000-0002-2828-5373) Vescovi Pinochet, M. A., (0000-0003-3926-409X) Zeil, K., (0000-0002-3727-7017) Ziegler, T., (0000-0003-0390-7671) Schramm, U., and (0000-0001-6200-6406) Rehwald, M.

Abstract

High-intensity short-pulse lasers enable novel compact accelerator schemes for the generation of energetic ion beams. The experimental investigation of the process remains challenging due to the femtosecond timescale and micrometer size of the acceleration. Commonly, diagnostic results are explained by a comparison of the experimental findings with computationally expensive particle-in-cell simulations. Cryogenic hydrogen jet targets (~30 critical densities) with µm-scale transverse size are particularly well suited for this approach. Time-resolved diagnostics like optical probing can infer the state of the target at the initialization time of the simulation and benchmark the simulation results. Here we present the implementation of an off-harmonic optical probing setup at an experiment for laser proton acceleration with a cylindrical hydrogen jet target at the DRACO PW laser with plasma-mirror cleaned laser contrast. We show under which conditions the technique overcomes the problem of parasitic plasma self-emission, present technical aspects of the off-harmonic probing technique together with experimental results of the observed plasma dynamics.

Published
2021

34. Resonant SAXS data used in publication: 'Probing ultrafast laser plasma processes inside solids with resonant small angle X-ray scattering'

Author

(0000-0002-6914-4083) Gaus, L., (0000-0003-3968-7498) Bischoff, L., (0000-0002-8258-3881) Bussmann, M., (0000-0002-0976-4416) Cunningham, E., (0000-0001-8756-181X) Curry, C. B., E, Juncheng, Galtier, E., (0000-0001-6608-9325) Gauthier, M., (0000-0002-7671-0901) Laso García, A., (0000-0001-6994-2475) Garten, M., (0000-0001-9112-0558) Glenzer, S., Grenzer, J., Gutt, C., (0000-0002-6268-2436) Hartley, N., (0000-0003-1184-2097) Huang, L., Hübner, U., (0000-0002-6350-4180) Kraus, D., Lee, H. J., McBride, E. E., (0000-0002-9556-0662) Metzkes-Ng, J., Nagler, B., (0000-0003-0868-4745) Nakatsutsumi, M., (0000-0003-0131-0628) Nikl, J., Ota, M., Pelka, A., (0000-0003-0931-1350) Prencipe, I., Randolph, L., Rödel, M., Sakawa, Y., (0000-0003-4400-1315) Schlenvoigt, H.-P., (0000-0002-7162-7500) Smid, M., (0000-0003-1277-4241) Treffert, F., (0000-0001-8090-2626) Voigt, K., (0000-0003-3926-409X) Zeil, K., (0000-0002-5845-000X) Cowan, T., (0000-0003-0390-7671) Schramm, U., (0000-0003-4861-5584) Kluge, T., (0000-0002-6914-4083) Gaus, L., (0000-0003-3968-7498) Bischoff, L., (0000-0002-8258-3881) Bussmann, M., (0000-0002-0976-4416) Cunningham, E., (0000-0001-8756-181X) Curry, C. B., E, Juncheng, Galtier, E., (0000-0001-6608-9325) Gauthier, M., (0000-0002-7671-0901) Laso García, A., (0000-0001-6994-2475) Garten, M., (0000-0001-9112-0558) Glenzer, S., Grenzer, J., Gutt, C., (0000-0002-6268-2436) Hartley, N., (0000-0003-1184-2097) Huang, L., Hübner, U., (0000-0002-6350-4180) Kraus, D., Lee, H. J., McBride, E. E., (0000-0002-9556-0662) Metzkes-Ng, J., Nagler, B., (0000-0003-0868-4745) Nakatsutsumi, M., (0000-0003-0131-0628) Nikl, J., Ota, M., Pelka, A., (0000-0003-0931-1350) Prencipe, I., Randolph, L., Rödel, M., Sakawa, Y., (0000-0003-4400-1315) Schlenvoigt, H.-P., (0000-0002-7162-7500) Smid, M., (0000-0003-1277-4241) Treffert, F., (0000-0001-8090-2626) Voigt, K., (0000-0003-3926-409X) Zeil, K., (0000-0002-5845-000X) Cowan, T., (0000-0003-0390-7671) Schramm, U., and (0000-0003-4861-5584) Kluge, T.

Abstract

Resonant Small-angle x-ray scattering raw data obtained in measurements at MEC at LCLS and evalutation of the asymmetry in the scattering patterns. The data set is structured in case 1/Si-Cu-compound targets and case 2/Cu-only-targets as presented in the publication for on- and off-resonant XFEL probe energies.

Published
2021

35. High-repetition-rate, multi-MeV deuteron acceleration from converging heavy water microjets at laser intensities of 1021 W/cm2.

Author

Treffert, F., Curry, C. B., Chou, H.-G. J., Crissman, C. J., DePonte, D. P., Fiuza, F., Glenn, G. D., Hollinger, R. C., Nedbailo, R., Park, J., Schoenwaelder, C., Song, H., Wang, S., Rocca, J. J., Roth, M., Glenzer, S. H., and Gauthier, M.

Subjects
*DEUTERIUM oxide, *NUCLEAR fusion, *VERY light jets, *WATER jets, *LASERS
Abstract

We demonstrate high repetition-rate deuteron acceleration by irradiating a continuously flowing, ambient temperature liquid heavy water jet with the high-intensity ALEPH laser. The laser delivered up to 5.5 J (120 TW, 1.2 × 1021 W/cm2) laser energy on target at 0.5 Hz. A high repetition-rate Thomson parabola spectrometer measured the deuteron beam energy spectra on each shot for 60 sequential shots (two minutes). Peak fluxes of 5 × 10 10 deuterons/sr/pulse, corresponding to an average flux of 1.5 × 10 12 deuterons/sr/min, were demonstrated with deuteron energies reaching up to 4.4 MeV. High shot-to-shot stability is observed up to 40%–50% of the maximum deuteron energy. These deuteron beams are suited for fast neutron production through deuteron breakup in a converter yielding energies similar to deuteron–deuteron (D–D, 2.45 MeV) fusion reactions of importance for material damage studies. [ABSTRACT FROM AUTHOR]

Published
2022
Full Text
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36. High-repetition-rate, multi-MeV deuteron acceleration from converging heavy water microjets at laser intensities of 1021 W/cm2.

Author

Treffert, F., Curry, C. B., Chou, H.-G. J., Crissman, C. J., DePonte, D. P., Fiuza, F., Glenn, G. D., Hollinger, R. C., Nedbailo, R., Park, J., Schoenwaelder, C., Song, H., Wang, S., Rocca, J. J., Roth, M., Glenzer, S. H., and Gauthier, M.

Subjects
DEUTERIUM oxide, NUCLEAR fusion, VERY light jets, WATER jets, LASERS
Abstract

We demonstrate high repetition-rate deuteron acceleration by irradiating a continuously flowing, ambient temperature liquid heavy water jet with the high-intensity ALEPH laser. The laser delivered up to 5.5 J (120 TW, 1.2 × 1021 W/cm2) laser energy on target at 0.5 Hz. A high repetition-rate Thomson parabola spectrometer measured the deuteron beam energy spectra on each shot for 60 sequential shots (two minutes). Peak fluxes of 5 × 10 10 deuterons/sr/pulse, corresponding to an average flux of 1.5 × 10 12 deuterons/sr/min, were demonstrated with deuteron energies reaching up to 4.4 MeV. High shot-to-shot stability is observed up to 40%–50% of the maximum deuteron energy. These deuteron beams are suited for fast neutron production through deuteron breakup in a converter yielding energies similar to deuteron–deuteron (D–D, 2.45 MeV) fusion reactions of importance for material damage studies. [ABSTRACT FROM AUTHOR]

Published
2022
Full Text
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37. Cryogenic Liquid Jets for High Repetition Rate Discovery Science

Author

Curry, C. B., Schoenwaelder, C., Goede, S., Kim, J. B., Rehwald, M., Treffer, F., Zeil, K., Glenzer, S. H., and Gauthier, M.

Subjects
Physics::Instrumentation and Detectors
Abstract

This protocol presents a detailed procedure for the operation of continuous, micron-sized cryogenic cylindrical and planar liquid jets. When operated as described here, the jet exhibits high laminarity and stability for centimeters. Successful operation of a cryogenic liquid jet in the Rayleigh regime requires a basic understanding of fluid dynamics and thermodynamics at cryogenic temperatures. Theoretical calculations and typical empirical values are provided as a guide to design a comparable system. This report identifies the importance of both cleanliness during cryogenic source assembly and stability of the cryogenic source temperature once liquefied. The system can be used for high repetition rate laser-driven proton acceleration, with an envisioned application in proton therapy. Other applications include laboratory astrophysics, materials science, and next-generation particle accelerators.

Published
2020

38. Cryogenic Liquid Jets for High Repetition Rate Discovery Science

Author

(0000-0001-8756-181X) Curry, C. B., Schoenwaelder, C., Goede, S., Kim, J. B., (0000-0001-6200-6406) Rehwald, M., Treffer, F., (0000-0003-3926-409X) Zeil, K., Glenzer, S. H., Gauthier, M., (0000-0001-8756-181X) Curry, C. B., Schoenwaelder, C., Goede, S., Kim, J. B., (0000-0001-6200-6406) Rehwald, M., Treffer, F., (0000-0003-3926-409X) Zeil, K., Glenzer, S. H., and Gauthier, M.

Abstract

This protocol presents a detailed procedure for the operation of continuous, micron-sized cryogenic cylindrical and planar liquid jets. When operated as described here, the jet exhibits high laminarity and stability for centimeters. Successful operation of a cryogenic liquid jet in the Rayleigh regime requires a basic understanding of fluid dynamics and thermodynamics at cryogenic temperatures. Theoretical calculations and typical empirical values are provided as a guide to design a comparable system. This report identifies the importance of both cleanliness during cryogenic source assembly and stability of the cryogenic source temperature once liquefied. The system can be used for high repetition rate laser-driven proton acceleration, with an envisioned application in proton therapy. Other applications include laboratory astrophysics, materials science, and next-generation particle accelerators.

Published
2020

39. 2D monochromatic x-ray imaging for beam monitoring of an x-ray free electron laser and a high-power femtosecond laser

Author

Sawada, H., primary, Trzaska, J., additional, Curry, C. B., additional, Gauthier, M., additional, Fletcher, L. B., additional, Jiang, S., additional, Lee, H. J., additional, Galtier, E. C., additional, Cunningham, E., additional, Dyer, G., additional, Daykin, T. S., additional, Chen, L., additional, Salinas, C., additional, Glenn, G. D., additional, Frost, M., additional, Glenzer, S. H., additional, Ping, Y., additional, Kemp, A. J., additional, and Sentoku, Y., additional

Published
2021
Full Text
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41. All-optical structuring of laser-driven proton beam profiles

Author

(0000-0001-9236-8037) Obst-Hübl, L., (0000-0002-3727-7017) Ziegler, T., Brack, F.-E., Branco, J., Bussmann, M., Cowan, T. E., Curry, C. B., Fiuza, F., Garten, M., Gauthier, M., Göde, S., Glenzer, S. H., Huebl, A., Irman, A., Kim, J. B., Kluge, T., Kraft, S., Kroll, F., Metzkes-Ng, J., Pausch, R., Prencipe, I., Rehwald, M., Rödel, C., Schlenvoigt, H.-P., Schramm, U., Zeil, K., (0000-0001-9236-8037) Obst-Hübl, L., (0000-0002-3727-7017) Ziegler, T., Brack, F.-E., Branco, J., Bussmann, M., Cowan, T. E., Curry, C. B., Fiuza, F., Garten, M., Gauthier, M., Göde, S., Glenzer, S. H., Huebl, A., Irman, A., Kim, J. B., Kluge, T., Kraft, S., Kroll, F., Metzkes-Ng, J., Pausch, R., Prencipe, I., Rehwald, M., Rödel, C., Schlenvoigt, H.-P., Schramm, U., and Zeil, K.

Abstract

Extreme field gradients intrinsic to relativistic laser-interactions with thin solid targets enable compact MeV proton accelerators with unique bunch characteristics. Yet, direct control of the proton beam profile is usually not possible. Here we present a readily applicable all-optical approach to imprint detailed spatial information from the driving laser pulse onto the proton bunch. In a series of experiments, counter-intuitively, the spatial profile of the energetic proton bunch was found to exhibit identical structures as the fraction of the laser pulse passing around a target of limited size. Such information transfer between the laser pulse and the naturally delayed proton bunch is attributed to the formation of quasi-static electric fields in the beam path by ionization of residual gas. Essentially acting as a programmable memory, these fields provide access to a higher level of proton beam manipulation.

Published
2019

42. All-optical shaping of laser-driven proton beam profiles

Author

(0000-0002-3727-7017) Ziegler, T., (0000-0001-9236-8037) Obst-Huebl, L., Brack, F.-E., Branco, J., (0000-0002-8258-3881) Bussmann, M., (0000-0002-5845-000X) Cowan, T. E., (0000-0001-8756-181X) Curry, C. B., (0000-0002-8502-5535) Fiuza, F., (0000-0001-6994-2475) Garten, M., (0000-0001-6608-9325) Gauthier, M., Göde, S., Glenzer, S. H., (0000-0003-1943-7141) Huebl, A., Irman, A., Kim, J. B., (0000-0003-4861-5584) Kluge, T., (0000-0002-0638-6990) Kraft, S., (0000-0002-0275-9892) Kroll, F., (0000-0002-9556-0662) Metzkes-Ng, J., (0000-0001-7990-9564) Pausch, R., Prencipe, I., (0000-0001-6200-6406) Rehwald, M., Rödel, C., (0000-0003-4400-1315) Schlenvoigt, H.-P., (0000-0003-0390-7671) Schramm, U., Zeil, K., (0000-0002-3727-7017) Ziegler, T., (0000-0001-9236-8037) Obst-Huebl, L., Brack, F.-E., Branco, J., (0000-0002-8258-3881) Bussmann, M., (0000-0002-5845-000X) Cowan, T. E., (0000-0001-8756-181X) Curry, C. B., (0000-0002-8502-5535) Fiuza, F., (0000-0001-6994-2475) Garten, M., (0000-0001-6608-9325) Gauthier, M., Göde, S., Glenzer, S. H., (0000-0003-1943-7141) Huebl, A., Irman, A., Kim, J. B., (0000-0003-4861-5584) Kluge, T., (0000-0002-0638-6990) Kraft, S., (0000-0002-0275-9892) Kroll, F., (0000-0002-9556-0662) Metzkes-Ng, J., (0000-0001-7990-9564) Pausch, R., Prencipe, I., (0000-0001-6200-6406) Rehwald, M., Rödel, C., (0000-0003-4400-1315) Schlenvoigt, H.-P., (0000-0003-0390-7671) Schramm, U., and Zeil, K.

Abstract

Extreme field gradients intrinsic to relativistic laser plasma interactions enable compact MeV proton accelerators with unique bunch characteristics, yet complicate direct proton beam control. Only complex micro-engineering of the plasma accelerator itself and limited adoption of conventional beam optics, so far provided access to global beam parameters as direction and divergence. Here we present a novel, counter-intuitive, yet readily applicable all-optical approach to imprint detailed spatial information from the driving laser pulse to the proton bunch. In a series of experiments, the spatial profile of the energetic proton bunch was found to exhibit identical features as the fraction of the laser pulse passing around a target of limited size. The formation of quasi-static electric fields in the beam path by ionization of residual gas in the experimental chamber results in asynchronous information transfer between the laser pulse and the naturally delayed proton bunch. Essentially acting as a programmable memory, these fields provide access to a new level of proton beam manipulation.

Published
2019

43. Laser-driven proton beam profiles in ultra-high fields

Author

(0000-0001-9236-8037) Obst-Hübl, L., (0000-0003-1739-0159) Bernert, C., (0000-0002-9859-2408) Brack, F.-E., Branco, J., (0000-0002-8258-3881) Bussmann, M., Cochran, G., (0000-0002-5845-000X) Cowan, T., Curry, C. B., (0000-0002-6914-4083) Gaus, L., Fiuza, F., (0000-0001-6994-2475) Garten, M., Gauthier, M., Glenzer, S. H., Göde, S., (0000-0003-1943-7141) Hübl, A., (0000-0002-4626-0049) Irman, A., Kim, J. B., (0000-0003-4861-5584) Kluge, T., (0000-0002-0638-6990) Kraft, S., (0000-0002-0275-9892) Kroll, F., Macdonald, M. J., (0000-0002-9556-0662) Metzkes-Ng, J., Mishra, R., (0000-0001-7990-9564) Pausch, R., Poole, P., (0000-0003-0931-1350) Prencipe, I., (0000-0001-6200-6406) Rehwald, M., Rödel, C., Ruyer, C., (0000-0003-4400-1315) Schlenvoigt, H.-P., Sommer, P., Schoenwalder, C., Schumaker, W., (0000-0002-3727-7017) Ziegler, T., (0000-0003-0390-7671) Schramm, U., Schumacher, D. W., (0000-0003-3926-409X) Zeil, K., (0000-0001-9236-8037) Obst-Hübl, L., (0000-0003-1739-0159) Bernert, C., (0000-0002-9859-2408) Brack, F.-E., Branco, J., (0000-0002-8258-3881) Bussmann, M., Cochran, G., (0000-0002-5845-000X) Cowan, T., Curry, C. B., (0000-0002-6914-4083) Gaus, L., Fiuza, F., (0000-0001-6994-2475) Garten, M., Gauthier, M., Glenzer, S. H., Göde, S., (0000-0003-1943-7141) Hübl, A., (0000-0002-4626-0049) Irman, A., Kim, J. B., (0000-0003-4861-5584) Kluge, T., (0000-0002-0638-6990) Kraft, S., (0000-0002-0275-9892) Kroll, F., Macdonald, M. J., (0000-0002-9556-0662) Metzkes-Ng, J., Mishra, R., (0000-0001-7990-9564) Pausch, R., Poole, P., (0000-0003-0931-1350) Prencipe, I., (0000-0001-6200-6406) Rehwald, M., Rödel, C., Ruyer, C., (0000-0003-4400-1315) Schlenvoigt, H.-P., Sommer, P., Schoenwalder, C., Schumaker, W., (0000-0002-3727-7017) Ziegler, T., (0000-0003-0390-7671) Schramm, U., Schumacher, D. W., and (0000-0003-3926-409X) Zeil, K.

Abstract

Extreme field gradients intrinsic to relativistic laser-interactions with thin solid targets enable compact multi-MeV proton accelerators with unique bunch characteristics. Protons are accelerated in TV/m fields that are established within the micrometer-scale vicinity of the high-power laser focus. This initial acceleration phase is followed by ballistic proton bunch propagation with negligible space-charge effects over millimeters to hundreds of centimeters to the particle detector or a proton target at a dedicated irradiation site. The detected proton emission distribution can be influenced by the spatio-temporal intensity distribution in the laser focus, electron transport through the target, potential plasma instabilities, as well as local and global target geometry and surface properties. Substantially extending this picture, our recent results show a critical influence of the milimeter scale vacuum environment on the accelerated proton bunch, where residual gas molecules are ionized by the remnant laser light that is not absorbed into the target plasma but reflected or transmitted. In an experiment with µm-sized hydrogen jet targets, this effect lead to the counter-intuitive observation of laser near-field feature imprints in the detected proton beam profiles. Our results show that the remnant laser pulse induces a quasi-static deflecting field map in the ionized residual background gas that serves as a memorizing medium and allows for asynchronous information transfer to the naturally delayed proton bunch. Occurring under typical experimental laser, target and vacuum conditions, all-optical imprinting needs to be taken into account for sensible interpretation of modulated proton beam profiles.

Published
2019

44. All-optical structuring of laser-driven proton beam profiles

Author

(0000-0002-9556-0662) Metzkes-Ng, J., (0000-0003-1739-0159) Bernert, C., (0000-0002-9859-2408) Brack, F.-E., Branco, J., (0000-0002-8258-3881) Bussmann, M., (0000-0002-5845-000X) Cowan, T., Curry, C. B., (0000-0002-6914-4083) Gaus, L., Fiuza, F., (0000-0001-6994-2475) Garten, M., Gauthier, M., Glenzer, S. H., Göde, S., (0000-0003-1943-7141) Hübl, A., (0000-0002-4626-0049) Irman, A., Kim, J. B., (0000-0003-4861-5584) Kluge, T., (0000-0002-0638-6990) Kraft, S., (0000-0002-0275-9892) Kroll, F., Macdonald, M. J., Mishra, R., (0000-0001-9236-8037) Obst-Hübl, L., (0000-0001-7990-9564) Pausch, R., (0000-0003-0931-1350) Prencipe, I., (0000-0001-6200-6406) Rehwald, M., Rödel, C., Ruyer, C., (0000-0003-4400-1315) Schlenvoigt, H.-P., Sommer, P., Schoenwalder, C., Schumaker, W., (0000-0002-3727-7017) Ziegler, T., (0000-0003-0390-7671) Schramm, U., (0000-0003-3926-409X) Zeil, K., (0000-0002-9556-0662) Metzkes-Ng, J., (0000-0003-1739-0159) Bernert, C., (0000-0002-9859-2408) Brack, F.-E., Branco, J., (0000-0002-8258-3881) Bussmann, M., (0000-0002-5845-000X) Cowan, T., Curry, C. B., (0000-0002-6914-4083) Gaus, L., Fiuza, F., (0000-0001-6994-2475) Garten, M., Gauthier, M., Glenzer, S. H., Göde, S., (0000-0003-1943-7141) Hübl, A., (0000-0002-4626-0049) Irman, A., Kim, J. B., (0000-0003-4861-5584) Kluge, T., (0000-0002-0638-6990) Kraft, S., (0000-0002-0275-9892) Kroll, F., Macdonald, M. J., Mishra, R., (0000-0001-9236-8037) Obst-Hübl, L., (0000-0001-7990-9564) Pausch, R., (0000-0003-0931-1350) Prencipe, I., (0000-0001-6200-6406) Rehwald, M., Rödel, C., Ruyer, C., (0000-0003-4400-1315) Schlenvoigt, H.-P., Sommer, P., Schoenwalder, C., Schumaker, W., (0000-0002-3727-7017) Ziegler, T., (0000-0003-0390-7671) Schramm, U., and (0000-0003-3926-409X) Zeil, K.

Abstract

Extreme field gradients intrinsic to relativistic laser-interactions with thin solid targets enable compact multi-MeV proton accelerators. The initial µm-scale acceleration phase is followed by ballistic proton propagation with negligible space-charge effects over millimeters to hundreds of centimeters to a site of analysis/application. The detected proton distribution can be influenced by the spatio-temporal intensity distribution in the laser focus, electron transport, plasma instabilities, as well as target geometry and surface properties. Substantially extending this picture, our recent results show a critical influence of the mm-scale vacuum environment on the accelerated proton bunch, where residual gas molecules are ionized by the remnant laser light not absorbed into the target plasma but reflected or transmitted. In an experiment with µm-sized hydrogen jet targets, this effect lead to the counter-intuitive observation of laser near-field feature imprints in the detected proton beam profiles. Our results show that the remnant laser pulse induces a quasi-static deflecting field in the ionized residual background gas that serves as a memorizing medium and allows for asynchronous information transfer to the naturally delayed proton bunch. Occurring under typical experimental laser, target and vacuum conditions, all-optical imprinting needs to be taken into account for sensible interpretation of modulated proton beam profiles.

Published
2019

45. All-optical shaping of laser-driven proton beam profiles

Author

Ziegler, T., Obst-Huebl, L., Brack, F.-E., Branco, J., Bussmann, M., Cowan, T. E., Curry, C. B., Fiuza, F., Garten, M., Gauthier, M., Göde, S., Glenzer, S. H., Huebl, A., Irman, A., Kim, J. B., Kluge, T., Kraft, S., Kroll, F., Metzkes-Ng, J., Pausch, R., Prencipe, I., Rehwald, M., Rödel, C., Schlenvoigt, H.-P., Schramm, U., and Zeil, K.

Subjects
Physics::Accelerator Physics
Abstract

Extreme field gradients intrinsic to relativistic laser plasma interactions enable compact MeV proton accelerators with unique bunch characteristics, yet complicate direct proton beam control. Only complex micro-engineering of the plasma accelerator itself and limited adoption of conventional beam optics, so far provided access to global beam parameters as direction and divergence. Here we present a novel, counter-intuitive, yet readily applicable all-optical approach to imprint detailed spatial information from the driving laser pulse to the proton bunch. In a series of experiments, the spatial profile of the energetic proton bunch was found to exhibit identical features as the fraction of the laser pulse passing around a target of limited size. The formation of quasi-static electric fields in the beam path by ionization of residual gas in the experimental chamber results in asynchronous information transfer between the laser pulse and the naturally delayed proton bunch. Essentially acting as a programmable memory, these fields provide access to a new level of proton beam manipulation.

Published
2018

46. All-optical structuring of laser-driven proton beam profiles data sets

Author

Obst-Huebl, L., Ziegler, T., Brack, F.-E., Branco, J., Bussmann, M., Cowan, T. E., Curry, C. B., Fiuza, F., Garten, M., Gauthier, M., Göde, S., Glenzer, S. H., Huebl, A., Irman, A., Kim, J. B., Kluge, T., Kraft, S., Kroll, F., Metzkes-Ng, J., Pausch, R., Prencipe, I., Rehwald, M., Rödel, C., Schlenvoigt, H.-P., Schramm, U., and Zeil, K.

Abstract

This data repository contains analyzed data files of the shown figures and simulation input files. Please see the according README.txt files in the individual directories and the original manuscript for guidance. Manuscript title: All-optical structuring of laser-driven proton beam profiles Authors: Lieselotte Obst, Tim Ziegler, Florian-Emanuel Brack, Joao Branco, Michael Bussmann, Thomas E. Cowan, Chandra B. Curry, Frederico Fiuza, Marco Garten, Maxence Gauthier, Sebastian Göde, Siegfried H. Glenzer, Axel Huebl, Arie Irman, Siegfried H. Glenzer, Axel Huebl, Arie Irman, Jongjin B. Kim, Thomas Kluge, Stephan Kraft, Florian Kroll, Josefine Metzkes-Ng, Richard Pausch, Irene Prencipe, Martin Rehwald, Christian Rödel, Hans-Peter Schlenvoigt, Ulrich Schramm, Karl Zeil Submitted to: Nature Communications (2018) Responsible for the data repository: Lieselotte Obst-Huebl, TU Dresden and HZDR Axel Huebl, TU Dresden and HZDR Tim Ziegler, TU Dresden and HZDR Thomas Kluge, HZDR

Published
2018
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47. Erratum: 'Setup for meV-resolution inelastic X-ray scattering measurements and X-ray diffraction at the Matter in Extreme Conditions endstation at the Linac Coherent Light Source' (Review Of Scientific Instruments (2018) 89 (10F104) DOI: 10.1063/1.5039329)

Author

Mcbride, E. E., White, T. G., Descamps, A., Fletcher, L. B., Appel, K., Condamine, F., Curry, C. B., Dallari, F., Funk, S., Galtier, E., Gamboa, E. J., Gauthier, M., Goede, S., Kim, J. B., Lee, H. J., Ofori-Okai, B. K., Oliver, M., Rigby, A., Schoenwaelder, C., Sun, P., Tschentscher, Th., Witte, B. B. L., Zastrau, U., Gregori, G., Nagler, B., Hastings, J., Glenzer, S. H., and Monaco, G.

Published
2018

48. Erratum: “Setup for meV-resolution inelastic X-ray scattering measurements and X-ray diffraction at the Matter in Extreme Conditions endstation at the Linac Coherent Light Source” [Rev. Sci. Instrum. 89, 10F104 (2018)]

Author

McBride, E. E., primary, White, T. G., additional, Descamps, A., additional, Fletcher, L. B., additional, Appel, K., additional, Condamine, F., additional, Curry, C. B., additional, Dallari, F., additional, Funk, S., additional, Galtier, E., additional, Gamboa, E. J., additional, Gauthier, M., additional, Goede, S., additional, Kim, J. B., additional, Lee, H. J., additional, Ofori-Okai, B. K., additional, Oliver, M., additional, Rigby, A., additional, Schoenwaelder, C., additional, Sun, P., additional, Tschentscher, Th., additional, Witte, B. B. L., additional, Zastrau, U., additional, Gregori, G., additional, Nagler, B., additional, Hastings, J., additional, Glenzer, S. H., additional, and Monaco, G., additional

Published
2018
Full Text
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49. All-optical structuring of laser-driven proton beam profiles

Author

(0000-0001-9236-8037) Obst-Hübl, L., (0000-0002-3727-7017) Ziegler, T., Brack, F.-E., Branco, J., Bussmann, M., Cowan, T. E., Curry, C. B., Fiuza, F., Garten, M., Gauthier, M., Göde, S., Glenzer, S. H., Huebl, A., Irman, A., Kim, J. B., Kluge, T., Kraft, S., Kroll, F., Metzkes-Ng, J., Pausch, R., Prencipe, I., Rehwald, M., Rödel, C., Schlenvoigt, H.-P., Schramm, U., Zeil, K., (0000-0001-9236-8037) Obst-Hübl, L., (0000-0002-3727-7017) Ziegler, T., Brack, F.-E., Branco, J., Bussmann, M., Cowan, T. E., Curry, C. B., Fiuza, F., Garten, M., Gauthier, M., Göde, S., Glenzer, S. H., Huebl, A., Irman, A., Kim, J. B., Kluge, T., Kraft, S., Kroll, F., Metzkes-Ng, J., Pausch, R., Prencipe, I., Rehwald, M., Rödel, C., Schlenvoigt, H.-P., Schramm, U., and Zeil, K.

Abstract

Extreme field gradients intrinsic to relativistic laser-interactions with thin solid targets enable compact MeV proton accelerators with unique bunch characteristics. Yet, direct control of the proton beam profile is usually not possible. Here we present a readily applicable all-optical approach to imprint detailed spatial information from the driving laser pulse onto the proton bunch. In a series of experiments, counter-intuitively, the spatial profile of the energetic proton bunch was found to exhibit identical structures as the fraction of the laser pulse passing around a target of limited size. Such information transfer between the laser pulse and the naturally delayed proton bunch is attributed to the formation of quasi-static electric fields in the beam path by ionization of residual gas. Essentially acting as a programmable memory, these fields provide access to a higher level of proton beam manipulation.

Published
2018

50. All-optical shaping of laser-driven proton beam profiles

Author

(0000-0002-3727-7017) Ziegler, T., (0000-0001-9236-8037) Obst-Huebl, L., Brack, F.-E., Branco, J., (0000-0002-8258-3881) Bussmann, M., (0000-0002-5845-000X) Cowan, T. E., (0000-0001-8756-181X) Curry, C. B., (0000-0002-8502-5535) Fiuza, F., (0000-0001-6994-2475) Garten, M., (0000-0001-6608-9325) Gauthier, M., Göde, S., Glenzer, S. H., (0000-0003-1943-7141) Huebl, A., Irman, A., Kim, J. B., (0000-0003-4861-5584) Kluge, T., (0000-0002-0638-6990) Kraft, S., (0000-0002-0275-9892) Kroll, F., (0000-0002-9556-0662) Metzkes-Ng, J., (0000-0001-7990-9564) Pausch, R., Prencipe, I., (0000-0001-6200-6406) Rehwald, M., Rödel, C., (0000-0003-4400-1315) Schlenvoigt, H.-P., (0000-0003-0390-7671) Schramm, U., Zeil, K., (0000-0002-3727-7017) Ziegler, T., (0000-0001-9236-8037) Obst-Huebl, L., Brack, F.-E., Branco, J., (0000-0002-8258-3881) Bussmann, M., (0000-0002-5845-000X) Cowan, T. E., (0000-0001-8756-181X) Curry, C. B., (0000-0002-8502-5535) Fiuza, F., (0000-0001-6994-2475) Garten, M., (0000-0001-6608-9325) Gauthier, M., Göde, S., Glenzer, S. H., (0000-0003-1943-7141) Huebl, A., Irman, A., Kim, J. B., (0000-0003-4861-5584) Kluge, T., (0000-0002-0638-6990) Kraft, S., (0000-0002-0275-9892) Kroll, F., (0000-0002-9556-0662) Metzkes-Ng, J., (0000-0001-7990-9564) Pausch, R., Prencipe, I., (0000-0001-6200-6406) Rehwald, M., Rödel, C., (0000-0003-4400-1315) Schlenvoigt, H.-P., (0000-0003-0390-7671) Schramm, U., and Zeil, K.

Abstract

Extreme field gradients intrinsic to relativistic laser plasma interactions enable compact MeV proton accelerators with unique bunch characteristics, yet complicate direct proton beam control. Only complex micro-engineering of the plasma accelerator itself and limited adoption of conventional beam optics, so far provided access to global beam parameters as direction and divergence. Here we present a novel, counter-intuitive, yet readily applicable all-optical approach to imprint detailed spatial information from the driving laser pulse to the proton bunch. In a series of experiments, the spatial profile of the energetic proton bunch was found to exhibit identical features as the fraction of the laser pulse passing around a target of limited size. The formation of quasi-static electric fields in the beam path by ionization of residual gas in the experimental chamber results in asynchronous information transfer between the laser pulse and the naturally delayed proton bunch. Essentially acting as a programmable memory, these fields provide access to a new level of proton beam manipulation.

Published
2018

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