DocumentCode :
3570252
Title :
Compton scattering in the ALS booster
Author :
Robin, D. ; Kim, C. ; Sessler, A.
Author_Institution :
Lawrence Berkeley Lab., CA, USA
Volume :
1
fYear :
1995
Firstpage :
207
Abstract :
Femtosecond X-ray pulses may be generated by 90° Compton side scattering of a short visible laser beam by a well-focused relativistic electron beam. A proof-of-principle experiment is underway using the ALS linac. From this experiment an X-ray pulse of 105 photons with a duration of 230 fs in a bandwidth of 10% at 10 Hz is expected. In this paper we explore using the ALS booster instead to increase the average X-ray flux. To generate the small beam size we plan to radiation damp electrons by accelerating them to 600 MeV and decelerate quickly to 50 MeV before intra-beam scattering can increase the beam size. We can achieve a vertical emittance of <5x10-9 m-rad. With a small modification of the booster lattice it is possible to focus the beam to a vertical beta function of βy*=10 cm. By reflecting the incident laser pulse many times we expect to be able to obtain an increase of the average X-ray flux
Keywords :
Compton effect; X-ray production; X-ray scattering; beam handling techniques; electron accelerators; storage rings; synchrotrons; 10 Hz; 50 MeV; 600 MeV; ALS booster; Compton scattering; booster lattice; femtosecond X-ray pulses; proof-of-principle experiment; short visible laser beam; vertical beta function; vertical emittance; well-focused relativistic electron beam; Bandwidth; Electromagnetic scattering; Electron beams; Laser beams; Linear particle accelerator; Optical pulse generation; Particle beams; Particle scattering; X-ray lasers; X-ray scattering;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Particle Accelerator Conference, 1995., Proceedings of the 1995
Print_ISBN :
0-7803-2934-1
Type :
conf
DOI :
10.1109/PAC.1995.504611
Filename :
504611
Link To Document :
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