1. A laser-Compton scattering prototype experiment at 100 MeV linac of Shanghai Institute of Applied Physics
- Author
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Y. Z. Chen, W. H. Liu, B. J. Xu, J. Q. Xu, X. C. Shi, H. O. Zhang, Wenbo Xu, G. Q. Lin, M. H. Zhao, Y. J. Li, W. Guo, Yu-Gang Ma, Q. Y. Pan, J. G. Chen, L. F. Yang, GT Fan, Yongjian Xu, W. Q. Shen, Xiangzhou Cai, G. W. Fan, Z. Yan, and Wen Luo
- Subjects
Physics ,business.industry ,Scattering ,Astrophysics::High Energy Astrophysical Phenomena ,Compton scattering ,Synchrotron radiation ,Particle accelerator ,Electron ,Laser ,Q-switching ,law.invention ,Full width at half maximum ,Optics ,law ,Physics::Accelerator Physics ,High Energy Physics::Experiment ,Atomic physics ,business ,Instrumentation - Abstract
As a prototype of the Shanghai Laser Electron Gamma Source in the Shanghai Synchrotron Radiation Facility, an x-ray source based on laser-Compton scattering (LCS) has been installed at the terminal of the 100 MeV linac of the Shanghai Institute of Applied Physics. LCS x-rays are generated by interactions between Q-switched Nd:yttrium aluminum garnet laser pulses [with wavelength of 1064 nm and pulse width of 21 ns (full width at half maximum)] and electron bunches [with energy of 108 MeV and pulse width of 0.95 ns (rms)] at an angle of 42 degrees between laser and electron beam. In order to measure the energy spectrum of LCS x-rays, a Si(Li) detector along the electron beam line axis is positioned at 9.8 m away from a LCS chamber. After background subtraction, the LCS x-ray spectrum with the peak energy of 29.1 +/- 4.4 vertical bar(stat)+/- 2.1 vertical bar(syst) keV and the peak width (rms) of 7.8 +/- 2.8 vertical bar(stat)+/- 0.4 vertical bar(syst) keV is observed. Normally the 100 MeV linac operates with the electron macropulse charge of 1.0 nC/pulse, and the electron and laser collision repetition rate of 20 Hz. Therefore, the total LCS x-ray flux of (5.2 +/- 2.0)x10(2) Hz can be achieved.
- Published
- 2010