| Title |
Evolution of the Inverse Compton Scattering X-ray Source of the ELSA Accelerator |
| Authors |
- A. Pires, R. Rosch, J. Touguet
CEA, Arpajon, France
- N. Delerue
Université Paris-Saclay, CNRS/IN2P3, IJCLab, Orsay, France
- V. Le Flanchec
CEA/DAM/DIF, Arpajon, France
|
| Abstract |
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.
|
| Paper |
download TU1C2.PDF [1.290 MB / 4 pages] |
| Slides |
download TU1C2_TALK.PDF [7.085 MB] |
| Cite |
download ※ BibTeX
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※ EndNote |
| Conference |
FLS2023 |
| Series |
ICFA Advanced Beam Dynamics Workshop (67th) |
| Location |
Luzern, Switzerland |
| Date |
27 August-01 September 2023 |
| Publisher |
JACoW Publishing, Geneva, Switzerland |
| Editorial Board |
Hans-Heinrich Braun (PSI, Villigen, Switzerland); Jan Chrin (PSI, Villigen, Switzerland); Romain Ganter (PSI, Villigen, Switzerland); Nicole Hiller (PSI, Villigen, Switzerland); Volker RW Schaa (GSI, Darmstadt, Germany) |
| Online ISBN |
978-3-95450-224-0 |
| Online ISSN |
2673-7035 |
| Received |
25 August 2023 |
| Revised |
25 August 2023 |
| Accepted |
30 August 2023 |
| Issued |
02 December 2023 |
| DOI |
doi:10.18429/JACoW-FLS2023-TU1C2 |
| Pages |
50-53 |
| Copyright |
 Published by JACoW Publishing under the terms of the Creative Commons Attribution 4.0 International license. Any further distribution of this work must maintain attribution to the author(s), the published article's title, publisher, and DOI. |
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