JACoW is a publisher in Geneva, Switzerland that publishes the proceedings of accelerator conferences held around the world by an international collaboration of editors.
TY - CONF AU - Pires, A. AU - Delerue, N. AU - Le Flanchec, V. AU - Rosch, R. AU - Touguet, J. ED - Braun, Hans-Heinrich ED - Chrin, Jan ED - Ganter, Romain ED - Hiller, Nicole ED - Schaa, Volker RW TI - Evolution of the Inverse Compton Scattering X-ray Source of the ELSA Accelerator J2 - Proc. of FLS2023, Luzern, Switzerland, 27 August-01 September 2023 CY - Luzern, Switzerland T2 - ICFA Advanced Beam Dynamics Workshop T3 - 67 LA - english AB - The Inverse Compton Scattering (ICS) X-ray source of ELSA accelerator at CEA-DAM, presents an efficient approach for generating X-rays with a compact linac. The source consists of a 30 MeV, 15 ps rms, up to 3 nC electron beam; and a table-top Nd:YAG laser. X-rays are produced in the 10-80 keV range, higher X-ray energies achieved with frequency doubling of the laser. The yield is increased by a factor of 8 thanks to an optical mirror system developed at CEA, folding the laser beam path and accumulating successive laser pulses. We present a new version of the device, with improvement of mechanical constraints management, adjunction of motorized mirrors, and a new imaging system. A Chirped Pulse Amplification (CPA) system was also designed, enabling higher amplification levels without exceeding laser damage threshold. The uniqueness of this CPA system lies in its use of a short wavelength bandwidth, ±250 pm after Self-Phase Modulation (SPM) broadening, and a line density of 1850 lines/mm for the gratings of the compressor. The pulse is stretched with a chirped fiber Bragg grating (CFBG) before amplification in Nd:YAG amplifiers, and compressed by a double pass grating compressor. PB - JACoW Publishing CP - Geneva, Switzerland SP - 50 EP - 53 KW - laser KW - electron KW - alignment KW - scattering KW - cavity DA - 2024/01 PY - 2024 SN - 2673-7035 SN - 978-3-95450-224-0 DO - doi:10.18429/JACoW-FLS2023-TU1C2 UR - http://jacow.org/fls2023/papers/tu1c2.pdf ER -