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1. Visible photoluminescence of color centers in LiF crystals for advanced diagnostics of 18 and 27 MeV proton beams

Author

A. Ampollini, Luigi Picardi, Francesca Bonfigli, Paolo Nenzi, G. Bazzano, E. Trinca, Vincenzo Surrenti, Massimo Piccinini, Monia Vadrucci, R. M. Montereali, Concetta Ronsivalle, Maria Aurora Vincenti, Enrico Nichelatti, Piccinini, M., Nichelatti, E., Ronsivalle, C., Ampollini, A., Bazzano, G., Bonfigli, F., Nenzi, P., Surrenti, V., Trinca, E., Vadrucci, M., Vincenti, M. A., Picardi, L., and Montereali, R. M.

Subjects
Materials science, Photoluminescence, Proton, Proton Bragg curve, 01 natural sciences, Particle detector, Linear particle accelerator, Dose mapping, 030218 nuclear medicine & medical imaging, Point defect, 03 medical and health sciences, chemistry.chemical_compound, Lithium fluoride, 0302 clinical medicine, Optics, 0103 physical sciences, Wide dynamic range, fluorescence microscopy, lithium fluoride, point defects, proton Bragg curve, radiation, instrumentation, Point defects, Instrumentation, Fluorescence microscopy, 010302 applied physics, Range (particle radiation), Radiation, business.industry, chemistry, Physics::Accelerator Physics, business, Beam (structure)
Abstract

Solid-state radiation detectors based on the visible photoluminescence of radiation-induced F2 and F3+ color centers in lithium fluoride crystals have been used for advanced diagnostics of 18 and 27 MeV proton beams, produced by the TOP-IMPLART linear accelerator, which is under development for protontherapy applications at ENEA C.R. Frascati, Italy. Visible fluorescence microscopy was successfully used to read the latent proton beam images stored in the lithium fluoride crystals, thanks to high emission efficiency of the F2 and F3+ color centers obtained by simultaneous optical excitation in the blue spectral range. High intrinsic spatial resolution and wide dynamic range of these novel LiF detectors allow obtaining two-dimensional images of both the beam transverse intensity distribution and of the Bragg curve. By using a simple defect formation model that takes into account the energy released in the material and the saturation of defect concentration, not only the two-dimensional dose map was obtained from the beam transverse intensity distribution image, but also the full Bragg curve was reconstructed, allowing the thorough characterization of proton beams produced by the accelerator.

Published
2019

2. Radiation testing of a commercial 6-axis MEMS inertial navigation unit at ENEA Frascati proton linear accelerator

Author

F. Cardelli, L. Piersanti, Emiliano Trinca, Marco Sabatini, F. Fortini, Vincenzo Surrenti, Giovanni B. Palmerini, Monia Vadrucci, G. Bazzano, Paolo Nenzi, Luigi Picardi, Concetta Ronsivalle, A. Ampollini, Bazzano, G., Ampollini, A., Cardelli, F., Fortini, F., Nenzi, P., Palmerini, G. B., Picardi, L., Piersanti, L., Ronsivalle, C., Surrenti, V., Trinca, E., Vadrucci, M., and Sabatini, M.

Subjects
Atmospheric Science, 010504 meteorology & atmospheric sciences, Computer science, COTS, Aerospace Engineering, radiation hardness, 01 natural sciences, Linear particle accelerator, law.invention, law, Inertial measurement unit, 0103 physical sciences, Aerospace engineering, 010303 astronomy & astrophysics, Radiation hardening, Inertial navigation system, 0105 earth and related environmental sciences, business.industry, Navigation system, Astronomy and Astrophysics, Particle accelerator, Gyroscope, IMU, MEMS, Geophysics, Space and Planetary Science, Absorbed dose, proton, General Earth and Planetary Sciences, business
Abstract

We present the first results of a novel collaboration activity between ENEA Frascati Particle Accelerator Laboratory and University La Sapienza Guidance and Navigation Laboratory in the field of Radiation Hardness Assurance (RHA) for space applications. The aim of this research is twofold: (a) demonstrating the possibility to use the TOP-IMPLART proton accelerator for radiation hardness assurance testing, developing ad hoc dosimetric and operational procedures for RHA irradiations; (b) investigating system level radiation testing strategies for Commercial Off The Shelf (COTS) components of interest for SmallSats space missions, with focus on devices and sensors of interest for guidance, navigation and control, through simultaneous exploration of Total Ionizing Dose (TID), Displacement Damage (DD) dose and Single-Event Effects (SEE) with proton beams. A commercial 6-axis integrated Micro Electro-Mechanical Systems (MEMS) inertial navigation system (accelerometer, gyroscope) was selected as first Device Under Test (DUT). The results of experimental tests aimed to define an operational procedure and the characterization of radiation effects on the component are reported, highlighting the consequence of the device performance degradation in terms of the overall navigation system accuracy. Doses up to 50 krad(Si) were probed and cross sections for Single-Event Functional Interrupt (SEFI) evaluated at a proton energy of 30 MeV.

Published
2021

3. Noncontact Displacement Measurement of Nuclear Waste Canisters in a Geological Disposal by Using an Electromagnetic-Wave Approach

Author

Mauro Cappelli, Vincenzo Surrenti, Cappelli, M., and Surrenti, V.

Subjects
Electromagnetic field, Radiation, Materials science, Sensors, 010401 analytical chemistry, Radioactive waste, Electromagnetic fields, 020206 networking & telecommunications, 02 engineering and technology, Mechanics, 01 natural sciences, Electromagnetic radiation, Cables, 0104 chemical sciences, Geological disposal, Wireless technologies, Nuclear Energy and Engineering, Waste, Electrical resistivity and conductivity, 0202 electrical engineering, electronic engineering, information engineering, Displacement (orthopedic surgery), I&amp, I&C
Abstract

The aim of this work is to show a preliminary investigation of possible noncontact techniques for displacement measurement of radioactive waste in a geological disposal. Since a nuclear waste repository can be considered as a harsh environment, the possibility to study alternative methods for measurement, for example, not using cables or buses for detecting relevant data, should be considered as a priority. A straightforward approach could be the substitution of cables with wireless sensors. But if cables cannot be used and the use of wireless techniques is required, new sensors must assure a reliable transmission without affecting the engineered barriers performance and the reliable use of energy supply for the measuring equipment over long periods. This work shows the results of a study of feasibility on using an electromagnetic (EM) approach for the contactless displacement measurement of a canister immersed and suspended in bentonite, a material with a high degree of water retention.

Published
2020

4. Experimental Setup for Non-Contact Displacement Measurement of Nuclear Waste via Electromagnetic Waves

Author

Mauro Cappelli, Vincenzo Surrenti, Cappelli, M., and Surrenti, V.

Subjects
Electromagnetic field, Nuclear fuel cycle, Sensors, Nuclear engineering, Waste I&C, Waste I&amp, Radioactive waste, Electromagnetic fields, Energy consumption, Electromagnetic radiation, Wireless technologies, Environmental science, Displacement (orthopedic surgery), Cable
Abstract

Spent nuclear fuel and high-level waste from fuel reprocessing are the most hazardous and long-lived radioactive wastes produced by the nuclear fuel cycle, and they must be contained and isolated for thousands of years at an acceptable safety level for human health and the environment. Recently, the authors have proposed a preliminary numerical investigation of possible non-contact techniques for displacement measurement in a geological nuclear waste disposal. In fact, cables used for the detection of measurement signals might be effectively substituted with wireless sensors, thus avoiding all the side effects produced in such a harsh environment (e.g. degradation due to temperature, humidity and radiation conditions). Previous works showed the feasibility of using an electromagnetic approach for the contactless displacement measurement of a canister immersed and suspended in bentonite, a material with a high degree of water retention. The results demonstrated that such an approach is possible provided that some strong requirements are imposed on the sensor design. Sure enough, new sensors must assure reliable transmission through the isolated areas of a repository without affecting the engineered barriers performance and reliable use of energy supply for the measuring equipment in the long term. This work proposes a possible experimental setup where the numerical models developed in previous works can be tested, so to arrive to a prototype sensor to be used in a demonstrator repository.

Published
2020

5. Beam commissioning of the 35 MeV section in an intensity modulated proton linear accelerator for proton therapy

Author

R. M. Montereali, F. Ghio, E. Wembe Tafo, Giulia Bazzano, Fabio Santavenere, Emiliano Trinca, Concetta Ronsivalle, Evaristo Cisbani, Paolo Nenzi, Vincenzo Surrenti, Monia Vadrucci, Massimo Piccinini, A. Ampollini, and Luigi Picardi

Subjects
Physics, Nuclear and High Energy Physics, Drift tube, Physics and Astronomy (miscellaneous), Proton, Klystron, 010308 nuclear & particles physics, Beam commissioning, Surfaces and Interfaces, 01 natural sciences, Linear particle accelerator, Cancer treatment, law.invention, Nuclear physics, law, 0103 physical sciences, linac, proton, radiotherapy, lcsh:QC770-798, lcsh:Nuclear and particle physics. Atomic energy. Radioactivity, 010306 general physics, Proton therapy, Beam (structure)
Abstract

This paper presents the experimental results on the Terapia Oncologica con Protoni-Intensity Modulated Proton Linear Accelerator (TOP-IMPLART) beam that is currently accelerated up to 35 MeV, with a final target of 150 MeV. The TOP-IMPLART project, funded by the Innovation Department of Regione Lazio (Italy), is led by Italian National Agency for New Technologies, Energy and Sustainable Economic Development (ENEA) in collaboration with the Italian Institute of Health and the Oncological Hospital Regina Elena-IFO. The accelerator, under construction and test at ENEA-Frascati laboratories, employs a commercial 425 MHz, 7 MeV injector followed by a sequence of 3 GHz accelerating modules consisting of side coupled drift tube linac (SCDTL) structures up to 71 MeV and coupled cavity linac structures for higher energies. The section from 7 to 35 MeV, consisting on four SCDTL modules, is powered by a single 10 MW klystron and has been successfully commissioned. This result demonstrates the feasibility of a ``fully linear'' proton therapy accelerator operating at a high frequency and paves the way to a new class of machines in the field of cancer treatment.

Published
2020

6. Recombination effects in the ionization chambers dose delivery monitor of the TOP-IMPLART proton beam

Author

Giulia Bazzano, A. Ampollini, Monia Vadrucci, A. Spurio, Luigi Picardi, Maurizio Lucentini, Concetta Ronsivalle, F. Ghio, Fausto Giuliani, E. Cisbani, Fabio Santavenere, Vincenzo Surrenti, Cristina Placido, Paolo Nenzi, C. De Angelis, S. Della Monaca, E. Basile, Ampollini, A., Basile, E., Bazzano, G., Cisbani, E., De Angelis, C., Della Monaca, S., Ghio, F., Giuliani, F., Lucentini, M., Nenzi, P., Placido, C., Picardi, L., Ronsivalle, C., Santavenere, F., Spurio, A., Surrenti, V., and Vadrucci, M.

Subjects
History, Materials science, Proton, dosimetry, business.industry, Detector, ionization chamber, proton, Linear particle accelerator, Computer Science Applications, Education, law.invention, Optics, law, Ionization, Calibration, business, Faraday cage, Pulse-width modulation, Beam (structure)
Abstract

The Intensity Modulated Proton Linear Accelerator for Cancer Therapy (TOP-IMPLART) is under development and construction by ENEA in collaboration with the Italian Institute of Health (ISS) and the Oncological Hospital Regina Elena-IFO with financial support of Regione Lazio. Its peculiar time structure (few microseconds pulse width) and very high peak intensity (≍ 109 proton/pulse) demand for ad hoc dose delivery monitors (DDM). The TOP-IMPLART DDM is based on ionization gas chambers. One segmented chamber prototype uses Micro Pattern Gaseous Detector technology for the 2-dimensional simultaneous x/y readout; the charge collected from each active segment (strips with pad-like shape) is readout by a dedicated gain-adaptable electronics. Two small, highly sensitive, integral ionization chambers, using the same electronics, complement the 2D chamber for the monitor of the single pulse beam charge, down to 1 pC/pulse. While under development and deployment of its accelerating modular cavities, the linear TOP-IMPLART beam is improved thanks also to the continuous monitoring and characterization by these devices, whose responses are periodically compared to calibrated dosimetric detectors such as real-time active microDiamond sensor, passive Alanine pellets, intrinsically stable integral Faraday Cup. Different calibration campaigns have been recently conducted to measure the recombination and dose-rate effects on the above ionization chambers. The outcome of these measurements shows clear electron-ion recombination in the chamber active volume, largely related to the high beam intensity and its small transverse cross section. Those effects can be taken into account and used to correct the actual measurement of the DDM. In this paper, the TOP-IMPLART project and the DDM devices are shortly presented and details of the above experimental studies are discussed.

Published
2020

7. Dose response and Bragg curve reconstruction by radiophotoluminescence of color centers in lithium fluoride crystals irradiated with 35 MeV proton beams from 0.5 to 50 Gy

Author

Emiliano Trinca, Maria Aurora Vincenti, Giulia Bazzano, Vincenzo Surrenti, Enrico Nichelatti, A. Ampollini, C. De Angelis, Massimo Piccinini, Luigi Picardi, S. Della Monaca, Paolo Nenzi, R. M. Montereali, Monia Vadrucci, Concetta Ronsivalle, Piccinini, M., Nichelatti, E., Ampollini, A., Bazzano, G., De Angelis, C., Della Monaca, S., Nenzi, P., Picardi, L., Ronsivalle, C., Surrenti, V., Trinca, E., Vadrucci, M., Vincenti, M. A., and Montereali, R. M.

Subjects
Bragg curve, color centers, LiF, proton beams, radiophotoluminescence, Materials science, Proton, Physics::Medical Physics, Linear energy transfer, 01 natural sciences, Particle detector, Linear particle accelerator, 030218 nuclear medicine & medical imaging, Optical pumping, 03 medical and health sciences, chemistry.chemical_compound, Color centers, 0302 clinical medicine, 0103 physical sciences, Irradiation, Instrumentation, 010302 applied physics, Range (particle radiation), Radiation, Lithium fluoride, Radiophotoluminescence, chemistry, Proton beams, Physics::Accelerator Physics, Atomic physics
Abstract

Passive solid-state radiation detectors, based on the radiophotoluminescence of stable color centers in nominally pure lithium fluoride (LiF) crystals, have been used for advanced diagnostics of the segment up to 35 MeV of the TOP-IMPLART proton linear accelerator for protontherapy applications, under development at ENEA Frascati. In LiF, proton beams generate a spatial distribution of F2 and F3+ aggregate color centers, which efficiently emit radiophotoluminescence in the red-green spectral range under optical pumping around 450 nm. LiF crystals were irradiated with 35 MeV nominal energy protons at several doses of interest for protontherapy (from 0.5 to 50 Gy). For the first time is shown here the possibility of measuring the radiophotoluminescence spectra of proton irradiated LiF even at such low doses and how the signal showed a linear behavior with dose with a good signal-to-noise ratio. A Bragg-curve image, stored as color-center distribution in a LiF crystal after a 50 Gy-dose irradiation in a particular geometry, was acquired in a conventional fluorescence microscope. After appropriate image processing, the signal intensity resulted to be proportional to the linear energy transfer along the whole Bragg curve. By best-fitting it with an ad-hoc analytical formula, the depth-dose distribution was reconstructed and the proton beam energy and energy spread were estimated.

Published
2020

8. THE TOP-IMPLART PROTON LINEAR ACCELERATOR: INTERIM CHARACTERISTICS OF THE 35 MEV BEAM

Author

Evaristo Cisbani, C. De Angelis, Antonella Soriani, Vincenzo Surrenti, C. Notaro, A. Ampollini, F. Ghio, A. Spurio, Luigi Picardi, Maurizio Lucentini, R M Montereali, C Placido, Monia Vadrucci, Massimo Piccinini, Concetta Ronsivalle, Fabio Santavenere, Fausto Giuliani, E. Trinca, G. Bazzano, P Nenzi, S. Della Monaca, and Lidia Strigari

Subjects
Materials science, Proton, Nuclear engineering, Radiation Dosage, Linear particle accelerator, 030218 nuclear medicine & medical imaging, law.invention, 03 medical and health sciences, 0302 clinical medicine, law, Homogeneity (physics), Dosimetry, Radiology, Nuclear Medicine and imaging, Radiometry, Radiation, Radiological and Ultrasound Technology, Final energy, Public Health, Environmental and Occupational Health, General Medicine, Injector, Equipment Design, 030220 oncology & carcinogenesis, proton, linac, dosimetry, Physics::Accelerator Physics, Particle Accelerators, Protons, Beam (structure)
Abstract

In the framework of the Italian TOP-IMPLART project (Regione Lazio), ENEA-Frascati, ISS and IFO are developing and constructing the first proton linear accelerator based on an actively scanned beam for tumor radiotherapy with final energy of 150 MeV. An important feature of this accelerator is modularity: an exploitable beam can be delivered at any stage of its construction, which allows for immediate characterization and virtually continuous improvement of its performance. Currently, a sequence of 3 GHz accelerating modules combined with a commercial injector operating at 425 MHz delivers protons up to 35 MeV. Several dosimetry systems were used to obtain preliminary characteristics of the 35-MeV beam in terms of stability and homogeneity. Short-term stability and homogeneity better than 3% and 2.6%, respectively, were demonstrated; for stability an improvement with respect to the respective value obtained for the previous 27 MeV beam.

Published
2018

9. Segmented undulator operation at the SPARC-FEL test facility

Author

Massimo Ferrario, Fabio Villa, Andrea Mostacci, Cristina Vaccarezza, Elio Sabia, Vittoria Petrillo, Maria Pia Anania, A. Petralia, Giampiero Di Pirro, Emanuele Di Palma, Domenico Di Giovenale, Marco Bellaveglia, Ivan Spassovsky, M. Artioli, Alessandro Cianchi, Vincenzo Surrenti, Riccardo Pompili, Giuseppe Dattoli, M. Carpanese, Enrica Chiadroni, F. Ciocci, Surrenti, V., Spassovsky, I., Sabia, E., Petralia, A., Di Palma, E., Dattoli, G., Carpanese, M., Artioli, M., and Ciocci, F.

Subjects
Magnetism, law.invention, SASE, FEL, Harmonic generation, Segmented undulator, SPARC, Electronic, Optical and Magnetic Materials, Condensed Matter Physics, Applied Mathematics, Electrical and Electronic Engineering, Optics, law, Homogeneity (physics), Electronic, High harmonic generation, Optical and Magnetic Materials, Computer Science Applications1707 Computer Vision and Pattern Recognition, Physics, business.industry, Undulator, Laser, Magnetic field, Phase space, Cathode ray, Physics::Accelerator Physics, business
Abstract

A short period undulator (1.4 cm) has been designed for the SPARC-FEL test facility and has been realized in collaboration with KYMA Srl. It has been installed on the undulator line at SPARC. The undulator, operating in a delta like mode, has been used as radiator in a segmented configuration. The first stage being provided by the five undulators of the SPARC FEL source "old" chain, with period 2.8 cm. The KYMA undulator has a quatrefoil structure, a high magnetic field homogeneity and focuses both in vertical and radial directions. The two sections, namely the bunching and radiating parts, are arranged in such a way that the second is adjusted on a harmonic of the first. Laser action occurring in the second part, is due to the bunching acquired in the first. Simulations of the temporal and spectral profiles in different electron beam operating conditions are reported, as well as the evolution of the longitudinal phase space. The agreement with the experimental results is discussed The importance of this experiment is at least threefold: 1) It proves that the segmented undulator can successfully be operated 2) It proves that the laser emission in the last undulator is entirely due to the bunching mechanism, being no second harmonic signal present in the first segment 3) Encourages various improvements of the configuration itself, as e.g. the use of a further undulator with variable magnetic field configuration in order to obtain a laser field with adjustable polarization. © 2015 SPIE.

Published
2015

10. First acceleration of a proton beam in a side coupled drift tube linac

Author

Paolo Nenzi, G. Bazzano, C. Snels, Luigi Picardi, A. Ampollini, Monia Vadrucci, Concetta Ronsivalle, Francesca Marracino, Vincenzo Surrenti, F. Ambrosini, Vadrucci, M., Surrenti, V., Snels, C., Nenzi, P., Marracino, F., Bazzano, G., Ampollini, A., Picardi, L., and Ronsivalle, C.

Subjects
Physics, medicine.medical_specialty, Drift tube, Proton, Nuclear Theory, Physics::Medical Physics, General Physics and Astronomy, Linear particle accelerator, Nuclear physics, Acceleration, medicine, linac, proton, radiotherapy, Physics::Accelerator Physics, Medical physics, Nuclear Experiment, Proton therapy, Beam (structure)
Abstract

We report the first experiment aimed at the demonstration of low-energy protons acceleration by a high-efficiency S-band RF linear accelerator. The proton beam has been accelerated from 7 to 11.6 MeV by a 1 meter long SCDTL (Side Coupled Drift Tube Linac) module powered with 1.3 MW. The experiment has been done in the framework of the Italian TOP-IMPLART (Oncological Therapy with Protons-Intensity Modulated Proton Therapy Linear Accelerator for Radio-Therapy) project devoted to the realization of a proton therapy centre based on a proton linear accelerator for intensity modulated cancer treatments to be installed at IRE-IFO, the largest oncological hospital in Rome. It is the first proton therapy facility employing a full linear accelerator scheme based on high-frequency technology. © CopyrightEPLA, 2015.

Published
2015

11. Mapping the transverse coherence of the self amplified spontaneous emission of a free-electron laser with the heterodyne speckle method

Author

Enrica Chiadroni, Marcello Quattormini, Giuseppe Dattoli, Amalia Torre, Vittoria Petrillo, Riccardo Pompili, Bruno Paroli, Julietta V. Rau, Vincenzo Surrenti, Luca Giannessi, Marco A. C. Potenza, M. Artioli, Alberto Bacci, Daniele Redoglio, Giampierro Di Pirro, Giancarlo Gatti, Andrea Mostacci, Marco Bellaveglia, Massimo Ferrario, A. Petralia, Luca Serafini, Fabio Villa, M. D. Alaimo, Michele Manfredda, Andrea Rossi, F. Ciocci, Roberta Martucci, Alessandro Cianchi, Maria Pia Anania, Cristina Vaccarezza, Villa, F., Torre, A., Surrenti, V., Quattormini, M., Petralia, A., Giannessi, L., Dattoli, G., and Ciocci, F.

Subjects
Heterodyne, Amplified spontaneous emission, Optics and Photonics, Physics::Optics, Electrons, law.invention, Speckle pattern, Optics, law, Computer Simulation, Physics, Amplifiers, Electronic, business.industry, Lasers, Settore FIS/01 - Fisica Sperimentale, Free-electron laser, Undulator, Models, Theoretical, Laser, coherence, speckle, Atomic and Molecular Physics, and Optics, coherence, Thermodynamics, Optical radiation, speckle, business, Coherence (physics)
Abstract

The two-dimensional single shot transverse coherence of the Self-Amplified Spontaneous Emission of the SPARC-LAB Free-Electron Laser was measured through the statistical analysis of a speckle field produced by heterodyning the radiation beam with a huge number of reference waves, scattered by a suspension of particles. In this paper we report the measurements and the evaluation of the transverse coherence along the SPARC-LAB undulator modules. The measure method was demonstrated to be precise and robust, it does not require any a priori assumptions and can be implemented over a wide range of wavelengths, from the optical radiation to the x-rays.

Published
2014

12. IRIDE: Interdisciplinary research infrastructure based on dual electron linacs and lasers

Author

Marco Ripani, F. Broggi, C. Guaraldo, Paolo Pierini, Mauro Migliorati, Vittoria Petrillo, Cristina Vaccarezza, Giancarlo Gatti, M. Collini, D. Babusci, Giuseppe Mandaglio, James Rosenzweig, P. Gauzzi, Calogero Pace, Massimo Reconditi, F. Sannibale, L. Catani, Claudio Quaresima, L. De Caro, Andrea Orecchini, Luca Serafini, S. Andreas, M. Capone, Jorge Portolés, M. Iannone, D. Alesini, V. Calo, M. Coreno, T. Spadaro, M. Passera, Marco Bellaveglia, Andrea Ghigo, Stefano Lupi, C. F. Papadopoulos, Gianluca Sarri, Keisuke Hatada, Luca Trentadue, M. Bolognesi, Maurizio Benfatto, D. Moricciani, Andrea Macchi, A. Di Cicco, Rodolfo Bonifacio, A. Tenore, Giorgio Contini, Federica Migliardo, Michele Cianci, Pere Masjuan, Andrzej Kupsc, E. Di Palma, Maria Pia Anania, Carlo Mariani, Gianluca Colò, Mikhail Zobov, S. Della Longa, V. Chiarella, R. Ricci, P.L. Ottaviani, Pasquale Londrillo, Carlo Pagani, W. Kluge, Alberto Bacci, P. Valente, J. Sekutowicz, Gian Piero Gallerano, Giovanni Mazzitelli, V. Muccifora, A. Ferrari, Federico Boscherini, Massimo Petrarca, Mauro Gambaccini, Alessandro Arcovito, G. Margutti, Sultan B. Dabagov, Enrica Chiadroni, C. Di Donato, L. A. Gizzi, R. Boni, Roberto Gunnella, L. Palumbo, Oscar Frasciello, M. Alessandroni, A. Gallo, Maddalena Pedio, Giovanni Ricco, P. Levi Sandri, Augusto Marcelli, Massimo Ferrario, Marco Capogni, M. Paci, L. Quintieri, Francesco Spinozzi, G. Delle Monache, Adolfo Esposito, U. Dosselli, Andrea Castoldi, Bruno Buonomo, Nicola Rosato, T. Prosperi, D. Di Giovenale, Catalina Curceanu, Alessandro Cianchi, Claudio Masciovecchio, Danilo Giulietti, G. Di Pirro, F. Rossi, R. Faccini, Rafel Escribano, Chiara Guazzoni, Ivan Davoli, G. A. Marzo, Bruno Spataro, G. Chirico, F. Murtas, G. Organtini, Fabio Villa, Andrea Vacchi, Fred Jegerlehner, Giacomo Claudio Ghiringhelli, L. Fulgentini, M. Losacco, A. Pietropaolo, Andrea Doria, E. Ripiccini, G. Cavoto, A. Filabozzi, A. A. Rossi, Antonella Balerna, A. D. Polosa, M. Mattioli, F. Ciocci, Daniela Russo, M. Artioli, Alessandro Ricci, Paolo Mariani, Daniele Filippetto, M. G. Castellano, Nicola Zema, Roberto Bedogni, F. Nguyen, Emilio Giovenale, Nadia Cherubini, Luca Giannessi, K. Dupraz, S. Loreti, A. Dodaro, S. Romeo, S. Pagnutti, V. De Leo, Stephen V. Milton, S. Salducco, O. Shekhovtsova, G. Venanzoni, G. Giardina, S. Dell Agnello, Francesco Sacchetti, Caterina Petrillo, Francesco Fiori, Andrea Rossi, Ivan Spassovsky, Antonella Lorusso, Amalia Torre, F. Bossi, Lorenzo Avaldi, Daniele Catone, Paola Bolognesi, Francesca Curciarello, Giuseppe Dattoli, Francesco Stellato, A. Compagno, K. Cassou, P. Michelato, Roberto Cimino, S. Vescovi, Alberto Clozza, Annalaura Sabatucci, Patrick O Keeffe, F. Arnesano, Salvatore Magazù, C. Giannini, Riccardo Pompili, Fabian Zomer, Giuseppe Zanotti, R. Cucini, D. Di Gioacchino, Sergio Bartalucci, F. Giorgianni, E. Pace, Sandra Biedron, Vincenzo Lombardi, S. Turchini, V. Bocci, P. De Felice, Alessio Perrone, Silvia Morante, Vincenzo Surrenti, Tullio Scopigno, Mario Pillon, G. C. Panaccione, Maurizio Angelone, Gianna Rossi, A. Stecchi, Manuela Boscolo, C. Milardi, A. Lukin, Claudio Gatti, S. Mobilio, Andrea Mostacci, M. Cestelli-Guidi, S. Ivashyn, L. Labate, Elio Sabia, A. Drago, Concetta Ronsivalle, Filippo Bencivenga, Daniele Sertore, Enrico Dainese, Pietro Musumeci, A. Petralia, Massimiliano Papi, Julietta V. Rau, Luca Pasquini, V.G. Palmieri, M. De Spirito, G. Ricciardi, N. P. Merenkov, Velia Minicozzi, Edoardo Milotti, Ricciardi, Giulia, Ferrario, M., Alesini, D., Alessandroni, M., Anania, M. P., Andreas, S., Angelone, M., Arcovito, A., Arnesano, F., Artioli, M., Avaldi, L., Babusci, D., Bacci, A., Balerna, A., Bartalucci, S., Bedogni, R., Bellaveglia, M., Bencivenga, F., Benfatto, M., Biedron, S., Bocci, V., Bolognesi, M., Bolognesi, P., Boni, R., Bonifacio, R., Boscherini, F., Boscolo, M., Bossi, F., Broggi, F., Buonomo, B., Calo, V., Catone, D., Capogni, M., Capone, M., Cassou, K., Castellano, M., Castoldi, A., Catani, L., Cavoto, G., Cherubini, N., Chirico, G., Cestelli Guidi, M., Chiadroni, E., Chiarella, V., Cianchi, A., Cianci, M., Cimino, R., Ciocci, F., Clozza, A., Collini, M., Colo, G., Compagno, A., Contini, G., Coreno, M., Cucini, R., Curceanu, C., Curciarello, F., Dabagov, S., Dainese, E., Davoli, I., Dattoli, G., De Caro, L., De Felice, P., De Leo, V., Dell Agnello, S., Della Longa, S., Delle Monache, G., De Spirito, M., Di Cicco, A., Di Donato, C., Di Gioacchino, D., Di Giovenale, D., Di Palma, E., Di Pirro, G., Dodaro, A., Doria, A., Dosselli, U., Drago, A., Dupraz, K., Escribano, R., Esposito, A., Faccini, R., Ferrari, A., Filabozzi, A., Filippetto, D., Fiori, F., Frasciello, O., Fulgentini, L., Gallerano, G. P., Gallo, A., Gambaccini, M., Gatti, C., Gatti, G., Gauzzi, P., Ghigo, A., Ghiringhelli, G., Giannessi, L., Giardina, G., Giannini, C., Giorgianni, F., Giovenale, E., Giulietti, D., Gizzi, L., Guaraldo, C., Guazzoni, C., Gunnella, R., Hatada, K., Iannone, M., Ivashyn, S., Jegerlehner, F., Keeffe, P. O., Kluge, W., Kupsc, A., Labate, L., Levi Sandri, P., Lombardi, V., Londrillo, P., Loreti, S., Lorusso, Antonella, Losacco, M., Lukin, A., Lupi, S., Macchi, A., Magazù, S., Mandaglio, G., Marcelli, A., Margutti, G., Mariani, C., Mariani, P., Marzo, G., Masciovecchio, C., Masjuan, P., Mattioli, M., Mazzitelli, G., Merenkov, N. P., Michelato, P., Migliardo, F., Migliorati, M., Milardi, C., Milotti, E., Milton, S., Minicozzi, V., Mobilio, S., Morante, S., Moricciani, D., Mostacci, A., Muccifora, V., Murtas, F., Musumeci, P., Nguyen, F., Orecchini, A., Organtini, G., Ottaviani, P. L., Pace, C., Pace, E., Paci, M., Pagani, C., Pagnutti, S., Palmieri, V., Palumbo, L., Panaccione, G. C., Papadopoulos, C. F., Papi, M., Passera, M., Pasquini, L., Pedio, M., Perrone, Alessio, Petralia, A., Petrarca, M., Petrillo, C., Petrillo, V., Pierini, P., Pietropaolo, A., Pillon, M., Polosa, A. D., Pompili, R., Portoles, J., Prosperi, T., Quaresima, C., Quintieri, L., Rau, J. V., Reconditi, M., Ricci, A., Ricci, R., Ricciardi, G., Ricco, G., Ripani, M., Ripiccini, E., Romeo, S., Ronsivalle, C., Rosato, N., Rosenzweig, J. B., Rossi, A. A., Rossi, A. R., Rossi, F., Rossi, G., Russo, D., Sabatucci, A., Sabia, E., Sacchetti, F., Salducco, S., Sannibale, F., Sarri, G., Scopigno, T., Sekutowicz, J., Serafini, L., Sertore, D., Shekhovtsova, O., Spassovsky, I., Spadaro, T., Spataro, B., Spinozzi, F., Stecchi, A., Stellato, F., Surrenti, V., Tenore, A., Torre, A., Trentadue, L., Turchini, S., Vaccarezza, C., Vacchi, A., Valente, P., Venanzoni, G., Vescovi, S., Villa, F., Zanotti, G., Zema, N., Zobov, M., Zomer, F., Ferrario, M, Alesini, D, ., ., Mobilio, Settimio, M. Ferrario, D. Alesini, M. Alessandroni, M.P. Anania, S. Andrea, M. Angelone, A. Arcovito, F. Arnesano, M. Artioli, L. Avaldi, D. Babusci, A. Bacci, A. Balerna, S. Bartalucci, R. Bedogni, M. Bellaveglia, F. Bencivenga, M. Benfatto, S. Biedron, V. Bocci, M. Bolognesi, P. Bolognesi, R. Boni, R. Bonifacio, F. Boscherini, M. Boscolo, F. Bossi, F. Broggi, B. Buonomo, V. Calo, D. Catone, M. Capogni, M. Capone, K. Cassou, M. Castellano, A. Castoldi, L. Catani, G. Cavoto, N. Cherubini, G. Chirico, M. Cestelli-Guidi, E. Chiadroni, V. Chiarella, A. Cianchi, M. Cianci, R. Cimino, F. Ciocci, A. Clozza, M. Collini, G. Colo, A. Compagno, G. Contini, M. Coreno, R. Cucini, C. Curceanu, F. Curciarello, S. Dabagov, E. Dainese, I. Davoli, G. Dattoli, L. De Caro, P. De Felice, V. De Leo, S. Dell Agnello, S. Della Longa, G. Delle Monache, M. De Spirito, A. Di Cicco, C. Di Donato, D. Di Gioacchino, D. Di Giovenale, E. Di Palma, G. Di Pirro, A. Dodaro, A. Doria, U. Dosselli, A. Drago, K. Dupraz, R. Escribano, A. Esposito, R. Faccini, A. Ferrari, A. Filabozzi, D. Filippetto, F. Fiori, O. Frasciello, L. Fulgentini, G.P. Gallerano, A. Gallo, M. Gambaccini, C. Gatti, G. Gatti, P. Gauzzi, A. Ghigo, G. Ghiringhelli, L. Giannessi, G. Giardina, C. Giannini, F. Giorgianni, E. Giovenale, D. Giulietti, L. Gizzi, C. Guaraldo, C. Guazzoni, R. Gunnella, K. Hatada, M. Iannone, S. Ivashyn, F. Jegerlehner, P.O. Keeffe, W. Kluge, A. Kupsc, L. Labate, P. Levi Sandri, V. Lombardi, P. Londrillo, S. Loreti, A. Lorusso, M. Losacco, A. Lukin, S. Lupi, A. Macchi, S. Magazù, G. Mandaglio, A. Marcelli, G. Margutti, C. Mariani, P. Mariani, G. Marzo, C. Masciovecchio, P. Masjuan, M. Mattioli, G. Mazzitelli, N.P. Merenkov, P. Michelato, F. Migliardo, M. Migliorati, C. Milardi, E. Milotti, S. Milton, V. Minicozzi, S. Mobilio, S. Morante, D. Moricciani, A. Mostacci, V. Muccifora, F. Murta, P. Musumeci, F. Nguyen, A. Orecchini, G. Organtini, P.L. Ottaviani, C. Pace, E. Pace, M. Paci, C. Pagani, S. Pagnutti, V. Palmieri, L. Palumbo, G.C. Panaccione, C.F. Papadopoulo, M. Papi, M. Passera, L. Pasquini, M. Pedio, A. Perrone, A. Petralia, M. Petrarca, C. Petrillo, V. Petrillo, P. Pierini, A. Pietropaolo, M. Pillon, A.D. Polosa, R. Pompili, J. Portole, T. Prosperi, C. Quaresima, L. Quintieri, J.V. Rau, M. Reconditi, A. Ricci, R. Ricci, G. Ricciardi, G. Ricco, M. Ripani, E. Ripiccini, S. Romeo, C. Ronsivalle, N. Rosato, J.B. Rosenzweig, A.A. Rossi, A.R. Rossi, F. Rossi, G. Rossi, D. Russo, A. Sabatucci, E. Sabia, F. Sacchetti, S. Salducco, F. Sannibale, G. Sarri, T. Scopigno, J. Sekutowicz, L. Serafini, D. Sertore, O. Shekhovtsova, I. Spassovsky, T. Spadaro, B. Spataro, F. Spinozzi, A. Stecchi, F. Stellato, V. Surrenti, A. Tenore, A. Torre, L. Trentadue, S. Turchini, C. Vaccarezza, A. Vacchi, P. Valente, G. Venanzoni, S. Vescovi, F. Villa, G. Zanotti, N. Zema, M. Zobov, F. Zomer, M., Ferrario, D., Alesini, M., Alessandroni, M. P., Anania, S., Andrea, M., Angelone, A., Arcovito, F., Arnesano, M., Artioli, L., Avaldi, D., Babusci, A., Bacci, A., Balerna, S., Bartalucci, R., Bedogni, M., Bellaveglia, F., Bencivenga, M., Benfatto, S., Biedron, V., Bocci, M., Bolognesi, P., Bolognesi, R., Boni, R., Bonifacio, F., Boscherini, M., Boscolo, F., Bossi, F., Broggi, B., Buonomo, V., Calo, D., Catone, M., Capogni, M., Capone, K., Cassou, M., Castellano, A., Castoldi, L., Catani, G., Cavoto, N., Cherubini, G., Chirico, M., Cestelli Guidi, E., Chiadroni, V., Chiarella, A., Cianchi, M., Cianci, R., Cimino, F., Ciocci, A., Clozza, M., Collini, G., Colo, A., Compagno, G., Contini, M., Coreno, R., Cucini, C., Curceanu, F., Curciarello, S., Dabagov, E., Dainese, I., Davoli, G., Dattoli, L., De Caro, P., De Felice, V., De Leo, S., Dell Agnello, S., Della Longa, G., Delle Monache, M., De Spirito, A., Di Cicco, C., Di Donato, D., Di Gioacchino, D., Di Giovenale, E., Di Palma, G., Di Pirro, A., Dodaro, A., Doria, U., Dosselli, A., Drago, K., Dupraz, R., Escribano, A., Esposito, R., Faccini, A., Ferrari, A., Filabozzi, D., Filippetto, F., Fiori, O., Frasciello, L., Fulgentini, G. P., Gallerano, A., Gallo, M., Gambaccini, C., Gatti, G., Gatti, P., Gauzzi, A., Ghigo, G., Ghiringhelli, L., Giannessi, G., Giardina, C., Giannini, F., Giorgianni, E., Giovenale, D., Giulietti, L., Gizzi, C., Guaraldo, C., Guazzoni, R., Gunnella, K., Hatada, M., Iannone, S., Ivashyn, F., Jegerlehner, P. O., Keeffe, W., Kluge, A., Kupsc, L., Labate, P., Levi Sandri, V., Lombardi, P., Londrillo, S., Loreti, A., Lorusso, M., Losacco, A., Lukin, S., Lupi, A., Macchi, S., Magazù, G., Mandaglio, A., Marcelli, G., Margutti, C., Mariani, P., Mariani, G., Marzo, C., Masciovecchio, P., Masjuan, M., Mattioli, G., Mazzitelli, N. P., Merenkov, P., Michelato, F., Migliardo, M., Migliorati, C., Milardi, Milotti, Edoardo, S., Milton, V., Minicozzi, S., Mobilio, S., Morante, D., Moricciani, A., Mostacci, V., Muccifora, F., Murta, P., Musumeci, F., Nguyen, A., Orecchini, G., Organtini, P. L., Ottaviani, C., Pace, E., Pace, M., Paci, C., Pagani, S., Pagnutti, V., Palmieri, L., Palumbo, G. C., Panaccione, C. F., Papadopoulo, M., Papi, M., Passera, L., Pasquini, M., Pedio, A., Perrone, A., Petralia, M., Petrarca, C., Petrillo, V., Petrillo, P., Pierini, A., Pietropaolo, M., Pillon, A. D., Polosa, R., Pompili, J., Portole, T., Prosperi, C., Quaresima, L., Quintieri, J. V., Rau, M., Reconditi, A., Ricci, R., Ricci, G., Ricciardi, G., Ricco, M., Ripani, E., Ripiccini, S., Romeo, C., Ronsivalle, N., Rosato, J. B., Rosenzweig, A. A., Rossi, A. R., Rossi, F., Rossi, G., Rossi, D., Russo, A., Sabatucci, E., Sabia, F., Sacchetti, S., Salducco, F., Sannibale, G., Sarri, T., Scopigno, J., Sekutowicz, L., Serafini, D., Sertore, O., Shekhovtsova, I., Spassovsky, T., Spadaro, B., Spataro, F., Spinozzi, A., Stecchi, F., Stellato, V., Surrenti, A., Tenore, A., Torre, L., Trentadue, S., Turchini, C., Vaccarezza, A., Vacchi, P., Valente, G., Venanzoni, S., Vescovi, F., Villa, G., Zanotti, N., Zema, M., Zobov, and F., Zomer

Subjects
Nuclear and High Energy Physics, High energy, SC Linac, Neutron source, FEL, Compton source, Advanced accelerators concepts, Particle physics, Settore FIS/07 - FISICA APPLICATA (A BENI CULTURALI, AMBIENTALI, BIOLOGIA E MEDICINA), Advanced accelerators concept, Technical design, NO, Particle physic, Instrumentation, Physics, Settore FIS/01 - Fisica Sperimentale, Wide field, Settore FIS/07 - Fisica Applicata(Beni Culturali, Ambientali, Biol.e Medicin), Dual (category theory), Free Electron Laser, Advanced accelerators concepts, Compton source, FEL, Neutron source, Particle physics, SC Linac, advanced accelerators concepts, particle physics, sc linac, compton source, fel, neutron source, free electron lasers, Systems engineering, Factory (object-oriented programming), Free electron laser
Abstract

This paper describes the scientific aims and potentials as well as the preliminary technical design of RUDE, an innovative tool for multi-disciplinary investigations in a wide field of scientific, technological and industrial applications. IRIDE will be a high intensity "particles factory", based on a combination of high duty cycle radio-frequency superconducting electron linacs and of high energy lasers. Conceived to provide unique research possibilities for particle physics, for condensed matter physics, chemistry and material science, for structural biology and industrial applications, IRIDE will open completely new research possibilities and advance our knowledge in many branches of science and technology. [RIDE is also supposed to be realized in subsequent stages of development depending on the assigned priorities. (C) 2013 Elsevier B.V. All rights reserved.

Published
2014

13. MM-wave cyclotron auto-resonance maser for plasma heating

Author

Francesco Mirizzi, Silvio Ceccuzzi, Gian Piero Gallerano, G. Dattoli, G. L. Ravera, Ivan Spassovsky, Angelo A. Tuccillo, E. Di Palma, Emilio Giovenale, Andrea Doria, Vincenzo Surrenti, Tuccillo, A. A., Surrenti, V., Ravera, G. L., Spassovsky, I., Giovenale, E., Gallerano, G. P., Doria, A., Di Palma, E., Dattoli, G., and Ceccuzzi, S.

Subjects
Physics, Range (particle radiation), CARM, Cyclotron Auto-Resonance Maser, Electron Cyclotron Resonance, Gyrotron, Nuclear Fusion, Plasma Heating, Physics and Astronomy (all), Tokamak, Nuclear engineering, Cyclotron, Cyclotron resonance, Resonance, Plasma, Electron cyclotron resonance, law.invention, law, Maser, Atomic physics
Abstract

Heating and Current Drive systems are of outstanding relevance in fusion plasmas, magnetically confined in tokamak devices, as they provide the tools to reach, sustain and control burning conditions. Heating systems based on the electron cyclotron resonance (ECRH) have been extensively exploited on past and present machines DEMO, and the future reactor will require high frequencies. Therefore, high power (≥1MW) RF sources with output frequency in the 200 - 300 GHz range would be necessary. A promising source is the so called Cyclotron Auto-Resonance Maser (CARM). Preliminary results of the conceptual design of a CARM device for plasma heating, carried out at ENEA-Frascati will be presented together with the planned R&D development. © 2014 AIP Publishing LLC.

Published
2014

14. Superradiant Cascade in a Seeded Free-Electron Laser

Author

Giancarlo Gatti, Marco Bellaveglia, Gabriel Marcus, M. Quattromini, Andrea Mostacci, Massimo Ferrario, Alessandro Cianchi, Enrica Chiadroni, Vittoria Petrillo, Luca Giannessi, G. Di Pirro, Vincenzo Surrenti, Julietta V. Rau, Simone Spampinati, M. Del Franco, A. Petralia, M. Labat, M. E. Couprie, Surrenti, V., Quattromini, M., Petralia, A., Labat, M., Del Franco, M., and Giannessi, L.

Subjects
Physics, electron beam, business.industry, Settore FIS/01 - Fisica Sperimentale, Free-electron laser, General Physics and Astronomy, Superradiance, Undulator, Radiation, Laser, Free electron laser, radiation, law.invention, Optics, Cascade, law, Harmonics, business, Ultrashort pulse
Abstract

We report measurements demonstrating the concept of the free-electron laser (FEL) superradiant cascade. Radiation (λrad=200 nm) at the second harmonic of a short, intense seed laser pulse (λseed= 400 nm) was generated by the cascaded FEL scheme at the transition between the modulator and radiator undulator sections. The superradiance of the ultrashort pulse is confirmed by detailed measurements of the resulting spectral structure, the intensity level of the produced harmonics, and the trend of the energy growth along the undulator. These results are compared to numerical particle simulations using the FEL code GENESIS 1.3 and show a satisfactory agreement. © 2013 American Physical Society.

Published
2013

15. CARM: A THz source for plasma heating

Author

A. A. Tuccillo, F. Mirizzi, Giuseppe Dattoli, Ivan Spassovsky, Silvio Ceccuzzi, Gian Piero Gallerano, Andrea Doria, E. Di Palma, Vincenzo Surrenti, G. L. Ravera, Emilio Giovenale, Tuccillo, A., Surrenti, V., Ravera, G., Spassovsky, I., Mirizzi, F., Giovenale, E., Gallerano, G. P., Doria, A., Di Palma, E., Dattoli, G., and Ceccuzzi, S.

Subjects
Physics, Range (particle radiation), Tokamak, Plasma heating, Terahertz radiation, Electron Cyclotron Heating (ECH), Nuclear engineering, Magnetically Confined Plasma, Fusion plasma, law.invention, Power (physics), CARM, law, Electronic engineering, Current (fluid)
Abstract

Heating and Current Drive systems are of outstanding relevance in fusion plasmas, magnetically confined in tokamak devices, as they provide the tools to reach, sustain and control burning conditions. DEMO, and the future reactor will require higher frequency for ECH. Therefore, high power (≥1MW) RF sources with output frequency in the 200 - 300 GHz range would be necessary. © 2013 IEEE.

Published
2013

16. SPARC_LAB present and future

Author

Stefano Lupi, C. De Martinis, Vittoria Petrillo, Julietta V. Rau, R. Faccini, U. Dosselli, Ivan Spassovsky, O. Bogdanov, Leonida A. Gizzi, D. Alesini, Alberto Bacci, Cristina Vaccarezza, Giorgio Turchetti, Emanuele Pace, Sultan B. Dabagov, Luca Giannessi, Adolfo Esposito, D. Di Giovenale, Giancarlo Gatti, Luca Serafini, Marco Bellaveglia, G. Di Pirro, A. Ghigo, Maria Pia Anania, M. Ferrario, Pasquale Londrillo, R. Boni, Danilo Giulietti, Concetta Ronsivalle, C. Gatti, Paolo Tomassini, Vincenzo Surrenti, Bruno Spataro, Fabio Villa, Alessandro Cianchi, Mauro Gambaccini, Giuseppe Dattoli, A. Ligidov, Andrea Mostacci, E. Di Palma, Tadzio Levato, Andrea Rossi, M. Castellano, Riccardo Pompili, Alessandro Gallo, A. Drago, L. Palumbo, A. Petralia, Luca Labate, Enrica Chiadroni, Surrenti, V., Spassovsky, I., Ronsivalle, C., Petralia, A., Giannessi, L., and Palma, E. D.

Subjects
Monochromatic X ray, RADIATION MECHANISMS: COMPTON AND INVERSE COMPTON, Nuclear and High Energy Physics, Engineering, business.industry, THz source, Settore FIS/01 - Fisica Sperimentale, Accelerator, Accelerator, plasma acceleration, THz source, advanced beam dynamics, computer.software_genre, Advanced accelerator concepts, plasma acceleration, advanced beam dynamics, Operating system, business, Instrumentation, computer
Abstract

A new facility named SPARC-LAB has been recently launched at the INFN National Laboratories in Frascati, merging the potentialities of the former projects SPARC and PLASMONX. We describe in this paper the status and the future perspectives at the SPARC-LAB facility. © 2013 Elsevier B.V. All rights reserved.

Published
2013

17. High-Order-Harmonic Generation and Superradiance in a Seeded Free-Electron Laser

Author

James Rosenzweig, M. E. Couprie, Giancarlo Gatti, M. Quattromini, F. Frassetto, Massimo Ferrario, Fabien Briquez, Vittoria Petrillo, M. Bellaveglia, Elio Sabia, Daniele Filippetto, Enrica Chiadroni, Ivan Spassovsky, Julietta V. Rau, E. Di Palma, A. Petralia, G. Di Pirro, M. Serluca, Luca Poletto, Vincenzo Surrenti, Marie Labat, Alessandro Cianchi, Andrea Mostacci, M. Artioli, Giuseppe Dattoli, Luca Giannessi, and Gabriel Marcus

Subjects
Physics::Optics, General Physics and Astronomy, fel, radiation, superradiance, OPTICAL KLYSTRON, law.invention, chemistry.chemical_compound, Optics, X-RAY-DIFFRACTION, law, High harmonic generation, EXTREME-ULTRAVIOLET, FEL, Physics, business.industry, Amplifier, Settore FIS/01 - Fisica Sperimentale, Free-electron laser, Superradiance, Laser, Barium borate, radiation, chemistry, Harmonics, Harmonic, Atomic physics, business, superradiance
Abstract

Higher order harmonic generation in a free-electron laser amplifier operating in the superradiant regime [R. H. Dicke, Phys. Rev. 93, 99 (1954).] has been observed. Superradiance has been induced by seeding a single-pass amplifier with the second harmonic of a Ti:sapphire laser, generated in a beta-Barium borate crystal, at seed intensities comparable to the free-electron laser saturation intensity. Pulse energy and spectral distributions of the harmonics up to the 11th order have been measured and compared with simulations.

Published
2012

18. High-Gain Harmonic-Generation Free-Electron Laser Seeded by Harmonics Generated in Gas

Author

Ivan Spassovsky, Bertrand Carré, Vincenzo Surrenti, Marie Labat, Alessandro Gallo, Enrica Chiadroni, Luca Cultrera, M. Del Franco, Vittoria Petrillo, Cristina Vaccarezza, M. Bougeard, Guillaume Lambert, Alessandro Cianchi, M. Ferrario, Andrea Mostacci, Julietta V. Rau, M. Serluca, Luca Poletto, Giancarlo Gatti, Marco Bellaveglia, M. Quattromini, F. Ciocci, Daniele Filippetto, Fabio Frassetto, D. Garzella, A. Petralia, Carlo Vicario, M. E. Couprie, Luca Giannessi, G. Di Pirro, Elio Sabia, A. Drago, Concetta Ronsivalle, Italian National agency for new technologies, Energy and sustainable economic development [Frascati] (ENEA), Synchrotron SOLEIL (SSOLEIL), Centre National de la Recherche Scientifique (CNRS), Laboratori Nazionali di Frascati (LNF), Istituto Nazionale di Fisica Nucleare (INFN), Service de Physique et de Chimie des Surfaces et Interfaces (SPCSI), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Istituto Nazionale di Fisica Nucleare, Sezione di Roma Tor Vergata (INFN, Sezione di Roma Tor Vergata), CNR Istituto di Fotonica e Nanotecnologie [Padova] (IFN), Consiglio Nazionale delle Ricerche [Roma] (CNR), Laboratoire d'optique appliquée (LOA), École Nationale Supérieure de Techniques Avancées (ENSTA Paris)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Università degli Studi di Roma 'La Sapienza' = Sapienza University [Rome], ENEA C.R. Frascati, Via E. Fermi, 45, 00044 Frascati, Roma, Italy, affiliation inconnue, Università degli Studi di Milano [Milano] (UNIMI), INFN-Mi, Via Celoria, 16 20133 Milano, Italy, Istituto di Struttura della Materia (CNR-ISM), Paul Scherrer Institute (PSI), National Research Council of Italy | Consiglio Nazionale delle Ricerche (CNR), Università degli Studi di Roma 'La Sapienza' = Sapienza University [Rome] (UNIROMA), and Università degli Studi di Milano = University of Milan (UNIMI)

Subjects
Physics::Optics, General Physics and Astronomy, high order harmonics, 01 natural sciences, 7. Clean energy, law.invention, Optics, law, 0103 physical sciences, High harmonic generation, 010306 general physics, Physics, FEL, high order harmonics, FEL, [PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics], 010308 nuclear & particles physics, business.industry, Amplifier, Settore FIS/01 - Fisica Sperimentale, Free-electron laser, Laser, Wavelength, Harmonics, Sapphire, Optoelectronics, business, Coherence (physics)
Abstract

International audience; The injection of a seed in a free-electron laser (FEL) amplifier reduces the saturation length and improves the longitudinal coherence. A cascaded FEL, operating in the high-gain harmonic-generation regime, allows us to extend the beneficial effects of the seed to shorter wavelengths. We report on the first operation of a high-gain harmonic-generation free-electron laser, seeded with harmonics generated in gas. The third harmonics of a Ti:sapphire laser, generated in a gas cell, has been amplified and up-converted to its second harmonic (?rad=133nm) in a FEL cascaded configuration based on a variable number of modulators and radiators. We studied the transition between coherent harmonic generation and superradiant regime, optimizing the laser performances with respect to the number of modulators and radiators. © 2011 American Physical Society.

Published
2011

19. Self-Amplified Spontaneous Emission Free-Electron Laser with an Energy-Chirped Electron Beam and Undulator Tapering

Author

F. Ciocci, Daniele Filippetto, J. B. Rosenzweig, Emanuele Pace, Andrea Rossi, M. Quattromini, M. Moreno, Carlo Vicario, Alessandro Gallo, G. Di Pirro, V. Rossi Albertini, Elio Sabia, M. Castellano, Giuseppe Dattoli, Cristina Vaccarezza, Luca Poletto, Julietta V. Rau, M. E. Couprie, Ivan Spassovsky, M. Ferrario, Giancarlo Gatti, Vincenzo Surrenti, Marie Labat, Fabio Frassetto, Marco Bellaveglia, Simone Spampinati, Alessandro Cianchi, M. Del Franco, Gabriel Marcus, A. Petralia, M. Serluca, Concetta Ronsivalle, Alberto Bacci, Luca Cultrera, Luca Giannessi, Fabien Briquez, Andrea Mostacci, Enrica Chiadroni, Vittoria Petrillo, Bruno Spataro, and Luca Ficcadenti

Subjects
Physics, business.industry, free electron laser, SASE, Settore FIS/01 - Fisica Sperimentale, Free-electron laser, Self-amplified spontaneous emission, General Physics and Astronomy, Tapering, Undulator, Laser, law.invention, Optics, free-electron laser, law, Cathode ray, Chirp, Spontaneous emission, business
Abstract

We report the first experimental implementation of a method based on simultaneous use of an energy chirp in the electron beam and a tapered undulator, for the generation of ultrashort pulses in a self-amplified spontaneous emission mode free-electron laser (SASE FEL). The experiment, performed at the SPARC FEL test facility, demonstrates the possibility of compensating the nominally detrimental effect of the chirp by a proper taper of the undulator gaps. An increase of more than 1 order of magnitude in the pulse energy is observed in comparison to the untapered case, accompanied by FEL spectra where the typical SASE spiking is suppressed.

Published
2011

20. SEEDING EXPERIMENTS AT SPARC

Author

Marie, Labat, Franco, Ciocci, Giuseppe, Dattoli, Mario Del Franco, Andrea, Doria, Gian Piero Gallerano, Luca, Giannessi, Emilio, Giovenale, Alberto Maria Antonio Petralia, Marcello, Quattromini, Concetta, Ronsivalle, Elio, Sabia, Ivan, Spassovsky, Vincenzo Surrenti Bertrand Carr, David, Garzella, Alessandro, Cianchi, Barbara, Marchetti, INFN Roma II, Roma, Italy Mario Mattioli, Maurizio, Serluca, Infn, Roma, Italy David Alesini, Marco, Bellaveglia, Roberto, Boni, Manuela, Boscolo, Michele, Castellano, Chiadroni, Enrica, Alberto, Clozza, Luca, Cultrera, Giampiero Di Pirro, Alessandro, Drago, Massimo, Ferrario, Ficcadenti, Luca, Daniele, Filippetto, Valeria, Fusco, Alessandro, Gallo, Giancarlo, Gatti, Mostacci, Andrea, Elisabetta, Pace, Palumbo, Luigi, Bruno, Spataro, Cristina, Vaccarezza, Alberto, Bacci, Vittoria, Petrillo, Andrea Renato Rossi, Luca, Serafini, Fabien, Briquez, Marie Emmanuelle Couprie, France Gabriel Marcus, and James, Rosenzweig

Published
2009

21. Seeding experiments at SPARC

Author

M. E. Biagini, S. Pagnutti, Concetta Ronsivalle, Vincenzo Surrenti, Giuseppe Dattoli, P.L. Ottaviani, Massimo Petrarca, Enrica Chiadroni, Bertrand Carré, A. Petralia, E. Pace, Bruno Spataro, Hamed Merdji, O. Tchebakoff, D. Garzella, Pierre Breger, D. Alesini, L. Palumbo, Salvatore Stagira, M. Germano, A. Di Pace, A. Clozza, L. Serafini, Alessandro Cianchi, M. Labat, Mauro Nisoli, A. Gallo, P. Monchicourt, Manuela Boscolo, G. L. Orlandi, Giuseppe Sansone, Fabio Frassetto, L. Cultrera, Cristina Vaccarezza, A. Ghigo, M. E. Couprie, Gian Piero Gallerano, V. Fusco, Pascal Salières, Elio Sabia, M. Bougeard, A. Drago, Sven Reiche, Guillaume Lambert, Emilio Giovenale, Massimo Ferrario, Mario Mattioli, Giuseppe Tondello, I. Spassovsky, M. Quattromini, Andrea Doria, S. De Silvestri, F. Ciocci, Daniele Filippetto, Mauro Migliorati, J. Rosenzweig, C. Vicario, M. G. Castellano, Luca Giannessi, G. Di Pirro, L. Poletto, P. Musumeci, and Sandro Tomassini

Subjects
Physics, FEL, Free electron laser, seeding, Nuclear and High Energy Physics, business.industry, Settore FIS/01 - Fisica Sperimentale, Laser, Signal, law.invention, Optics, Work plan, FREE-ELECTRON LASER, law, Cascade, Harmonics, Harmonic, High harmonic generation, RADIATION, Seeding, business, Instrumentation, Free electron laser, AMPLIFIER, seeding, GENERATION
Abstract

In the framework of the DS4 EUROFEL collaboration, a research work plan at the SPARC free-electron laser (FEL) test facility aiming at the investigation of seeded and cascaded FEL configurations is under implementation. The main goal of the collaboration is to study and test the amplification and the FEL harmonic generation process of an input seed signal obtained as higher-order harmonics generated both in crystals (400 and 266 nm) and in gases (266,160,114 nm). The SPARC FEL can be configured to test several cascaded FEL configurations. In this paper we introduce SPARC and its main parameters and we analyze the superradiant cascade and the harmonic cascade seeded with a signal with the typical time structure of the harmonics generated in gas. (C) 2008 Elsevier B.V. All rights reserved.

Published
2008

22. Double free-electron laser oscillator for photon–photon collisions

Author

M. Ferrario, Amalia Torre, Giuseppe Dattoli, Ivan Spassovsky, Vincenzo Surrenti, E. Milotti, Surrenti, V., Spassovsky, I., Dattoli, G., and Torre, A.

Subjects
Physics, Photon, business.industry, Free-electron laser, Compton scattering, Physics::Optics, Statistical and Nonlinear Physics, Electron, Radiation, Laser, Electromagnetic radiation, Atomic and Molecular Physics, and Optics, law.invention, Optics, law, Turn (geometry), Physics::Accelerator Physics, Atomic physics, business
Abstract

In view of a quantum electrodynamics test, a "double" free-electron laser (FEL) oscillator is proposed as a possible device for head-on photon-photon collisions in vacuum. The oscillator is conceived in order to produce two laser beams in the same cavity by two counterpropagating electron beams. The latter are in turn exploited to produce gamma photons by backward Compton scattering of the intracavity FEL radiation itself. In view of an effective device design, specific ranges of values for the various parameters, that characterize the system, are individualized for operation at the maximum of the γ-γ scattering cross section. An estimate of the collision rate in definite device configurations is provided. © 2013 Optical Society of America.

Published
2013

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