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Observation of the nonlinear effect in relativistic Thomson scattering of electron and laser beams |
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| Authors: | T. Kumita Y. Kamiya M. Babzien I. Ben-Zvi K. Kusche I. V. Pavlishin I. V. Pogorelsky D. P. Siddons V. Yakimenko T. Hirose T. Omori J. Urakawa K. Yokoya D. Cline F. Zhou |
| Affiliation: | (1) Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397, Japan;(2) Brookhaven National Laboratory, Upton, NY 11973, USA;(3) Waseda University, Shinjuku-ku, Tokyo 169-8555, Japan;(4) High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan;(5) University of California, Los Angeles, Los Angeles, CA 90095, USA |
| Abstract: | Thomson scattering of high-power laser and electron beams is a good test of electrodynamics in the high-field region. We demonstrated production of high-intensity X-rays in the head-on collision of a CO2 laser and 60-MeV electron beams at Brookhaven National Laboratory, Accelerator Test Facility. The energy of an X-ray photon was limited at 6.5 keV in the linear (lowest order) Thomson scattering, but the nonlinear (higher order) process produces higher energy X-rays. We measured the angular distribution of the high-energy X-rays and confirmed that it agrees with theoretical predictions. |
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