The SPARC project: a high-brightness electron beam source at LNF to drive a SASE-FEL experiment

Alesini, D.; Bertolucci, S.; Biagini, M.E.; Biscari, C.; Boni, R.; Boscolo, M.; Castellano, M.; Clozza, A.; Pirro, G. Di; Drago, A.; Esposito, A.; Ferrario, M.; Fusco, V.; Gallo, A.; Ghigo, A.; Guiducci, S.; Incurvati, M.; Laurelli, P.; Ligi, C.; Marcellini, F.; Migliorati, M.; Milardi, C.; Palumbo, L.; Pellegrino, L.; Preger, M.; Raimondi, P.; Ricci, R.; Sanelli, C.; Sgamma, F.; Spataro, B.; Serio, M.; Stecchi, A.; Stella, A.; Tazzioli, F.; Vaccarezza, C.; Vescovi, M.; Vicario, C.; Zobov, M.; Acerbi, E.; Alessandria, F.; Barni, D.; Bellomo, G.; Boscolo, I.; Broggi, F.; Cialdi, S.; DeMartinis, C.; Giove, D.; Maroli, C.; Petrillo, V.; Romé, M.; Serafini, L.; Chiadroni, E.; Felici, G.; Levi, Decio; Mastrucci, M.; Mattioli, M.; Medici, G.; Petrarca, G.S.; Catàni, L.; Cianchi, A.; d’Angelo, A.; Salvo, R. Di; Fantini, A.; Moricciani, D.; Schaerf, C.; Bartolini, R.; Ciocci, F.; Dattoli, G.; Doria, A.; Flora, F.; Gallerano, G.P.; Giannessi, L.; Giovenale, E.; Messina, Giovanni; Mezi, L.; Ottaviani, P.L.; Picardi, L.; Quattromini, M.; Renieri, A.; Ronsivalle, C.; Avaldi, L.; Carbone, C.; Cricenti, A.; Pifferi, Antonio; Perfetti, P.; Prosperi, T.; Albertini, V. Rossi; Quaresima, C.; Zema, N.

doi:10.1016/s0168-9002(03)00943-4

Cited by 52 publications

(26 citation statements)

References 6 publications

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“…Three S-band travelling wave accelerating sections raise the energy to approximately 170 MeV (Alesini et al 2003). The transport system consists of 8 electromagnetic quadrupoles, which allow tuning of the beam properties at the target.…”

Section: Infn Sparc Lab the Sparc (Sources For Plasma Accelerators Amentioning

confidence: 99%

Dosimetry of very high energy electrons (VHEE) for radiotherapy applications: using radiochromic film measurements and Monte Carlo simulations

Subiel¹,

Moskvin²,

Welsh³

et al. 2014

Phys. Med. Biol.

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Very high energy electrons (VHEE) in the range from 100-250 MeV have the potential of becoming an alternative modality in radiotherapy because of their improved dosimetry properties compared with MV photons from contemporary medical linear accelerators. Due to the need for accurate dosimetry of small field size VHEE beams we have performed dose measurements using EBT2 Gafchromic® film. Calibration of the film has been carried out for beams of two different energy ranges: 20 MeV and 165 MeV from conventional radio frequency linear accelerators. In addition, EBT2 film has been used for dose measurements with 135 MeV electron beams produced by a laser-plasma wakefield accelerator. The dose response measurements and percentage depth dose profiles have been compared with calculations carried out using the general-purpose FLUKA Monte Carlo (MC) radiation transport code. The impact of induced radioactivity on film response for VHEEs has been evaluated using the MC simulations. A neutron yield of the order of 10 −5 neutrons cm −2 per incident electron has been estimated and induced activity due to radionuclide production is found to have a negligible effect on total dose deposition and film response. Neutron and proton contribution to the equivalent doses are negligible for VHEE. The study demonstrates that EBT2 Gafchromic film is a reliable dosimeter that can be used for dosimetry of VHEE. The results indicate an energy-independent response of the dosimeter for 20 MeV and 165 MeV electron beams and has been found to be suitable for dosimetry of VHEE.

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Section: Infn Sparc Lab the Sparc (Sources For Plasma Accelerators Amentioning

confidence: 99%

Dosimetry of very high energy electrons (VHEE) for radiotherapy applications: using radiochromic film measurements and Monte Carlo simulations

Subiel¹,

Moskvin²,

Welsh³

et al. 2014

Phys. Med. Biol.

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“…SPARC-LABis a test facility based on the unique combination of high brightness electron beams, from the SPARC photoinjector, 25,26 with high intensity ultra-short laser pulses, from FLAME. 27 The joint presence of these two systems will allow the investigation of different configurations of plasma acceleration, i.e., self-and external-injection, laser and particle beam driven, and the development of a wide spectrum inter-disciplinary leading-edge research activity based on advanced radiation sources, e.g., coherent monochromatic X-ray and high peak power THz radiation, both broadband and narrowband.…”

Section: The Sparc-lab Test Facilitymentioning

confidence: 99%

Characterization of the THz radiation source at the Frascati linear accelerator

Chiadroni

Bellaveglia

Calvani

et al. 2013

Review of Scientific Instruments

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Material selection considerations for coaxial, ferrimagnetic-based nonlinear transmission lines J. Appl. Phys. 113, 064904 (2013) Graphene on boron nitride microwave transistors driven by graphene nanoribbon back-gates Appl. Phys. Lett. 102, 033505 (2013) Millimeter scale electrostatic mirror with sub-wavelength holes for terahertz wave scanning Appl. Phys. Lett. 102, 031111 (2013) Leaky and bound modes in terahertz metasurfaces made of transmission-line metamaterials J. Appl. Phys. 113, 033105 (2013) Additional information on Rev. Sci. Instrum. The linac driven coherent THz radiation source at the SPARC-LAB test facility is able to deliver broadband THz pulses with femtosecond shaping. In addition, high peak power, narrow spectral bandwidth THz radiation can be also generated, taking advantage of advanced electron beam manipulation techniques, able to generate an adjustable train of electron bunches with a sub-picosecond length and with sub-picosecond spacing. The paper reports on the manipulation, characterization, and transport of the electron beam in the bending line transporting the beam down to the THz station, where different coherent transition radiation spectra have been measured and studied with the aim to optimize the THz radiation performances.

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“…The current gun in operation at SPARC_LAB [17] uses a 1.6 cell standing wave structure of the the UCLA/ BNL/SLAC type [18] to obtain high beam brightness for the 150 MeV SPARC_LAB accelerator in operation since 2004 at LNF-INFN [19]. The high brightness electron beams have been used for several experiments including SASE-FEL in visible light [20], demonstration of emittance preservation in velocity bunching [21] and FEL seeding experiments [22].…”

Section: Introductionmentioning

confidence: 99%

New technology based on clamping for high gradient radio frequency photogun

Alesini

Battisti

Ferrario

et al. 2015

Phys. Rev. ST Accel. Beams

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High gradient rf photoguns have been a key development to enable several applications of high quality electron beams. They allow the generation of beams with very high peak current and low transverse emittance, satisfying the tight demands for free-electron lasers, energy recovery linacs, Compton/Thomson sources and high-energy linear colliders. In the present paper we present the design of a new rf photogun recently developed in the framework of the SPARC_LAB photoinjector activities at the laboratories of the National Institute of Nuclear Physics in Frascati (LNF-INFN, Italy). This design implements several new features from the electromagnetic point of view and, more important, a novel technology for its realization that does not involve any brazing process. From the electromagnetic point of view the gun presents high mode separation, low peak surface electric field at the iris and minimized pulsed heating on the coupler. For the realization, we have implemented a novel fabrication design that, avoiding brazing, strongly reduces the cost, the realization time and the risk of failure. Details on the electromagnetic design, low power rf measurements and high power radiofrequency and beam tests performed at the University of California in Los Angeles (UCLA) are discussed in the paper.

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The SPARC project: a high-brightness electron beam source at LNF to drive a SASE-FEL experiment

Cited by 52 publications

References 6 publications

Dosimetry of very high energy electrons (VHEE) for radiotherapy applications: using radiochromic film measurements and Monte Carlo simulations

Dosimetry of very high energy electrons (VHEE) for radiotherapy applications: using radiochromic film measurements and Monte Carlo simulations

Characterization of the THz radiation source at the Frascati linear accelerator

New technology based on clamping for high gradient radio frequency photogun

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