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Proceedings Paper

Compton scattering of laser off electron beams to generate polarized positron beams for future linear colliders
Author(s): Tachishige Hirose; Katsuhiro Dobashi; Tetsuro Kumita; Yoshimasa Kurihara; Tsunehiko Omori; Toshiyuki Okugi; Kiyohiro Sugiyama; Akira Tsunemi; Junji Urakawa; Masakazu Washio
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Paper Abstract

We observed positron (e+) production for the first time on the basis of the new idea that (gamma) -rays produced via Compton scattering of laser lights off electron (e-) beams of 1.26 GeV/c provided by the ATF damping ring can create pairs of e+ and e-. It is verified that the production rates of e+- and (gamma) -rays are consistent with each other as well as in good agreement with theoretical predictions. We also attain a conceptual design of a polarized e+ source for the future linear collide JLC which requires high intensity e+ beams with a complicated time structure of multi-bunching.

Paper Details

Date Published: 5 May 1999
PDF: 14 pages
Proc. SPIE 3687, International Workshop on Nondestructive Testing and Computer Simulations in Science and Engineering, (5 May 1999); doi: 10.1117/12.347414
Show Author Affiliations
Tachishige Hirose, Tokyo Metropolitan Univ. (Japan)
Katsuhiro Dobashi, Tokyo Metropolitan Univ. (Japan)
Tetsuro Kumita, Tokyo Metropolitan Univ. (Japan)
Yoshimasa Kurihara, KEK High Energy Accelerator Research Organization (Japan)
Tsunehiko Omori, KEK High Energy Accelerator Research Organization (Japan)
Toshiyuki Okugi, Tokyo Metropolitan Univ. (Japan)
Kiyohiro Sugiyama, Tokyo Metropolitan Univ. (Japan)
Akira Tsunemi, Sumitomo Heavy Industry Ltd. (Japan)
Junji Urakawa, KEK High Energy Accelerator Research Organization (Japan)
Masakazu Washio, Waseda Univ. (Japan)


Published in SPIE Proceedings Vol. 3687:
International Workshop on Nondestructive Testing and Computer Simulations in Science and Engineering

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