Compton scattering of laser off electron beams to generate polarized positron beams for future linear colliders

Tachishige Hirose; Katsuhiro Dobashi; Tetsuro Kumita; Yoshimasa Kurihara; Tsunehiko Omori; Toshiyuki Okugi; Kiyohiro Sugiyama; Akira Tsunemi; Junji Urakawa; Masakazu Washio

doi:10.1117/12.347414

5 May 1999 Compton scattering of laser off electron beams to generate polarized positron beams for future linear colliders

Tachishige Hirose, Katsuhiro Dobashi, Tetsuro Kumita, Yoshimasa Kurihara, Tsunehiko Omori, Toshiyuki Okugi, Kiyohiro Sugiyama, Akira Tsunemi, Junji Urakawa, Masakazu Washio

Author Affiliations +

Proceedings Volume 3687, International Workshop on Nondestructive Testing and Computer Simulations in Science and Engineering; (1999) https://doi.org/10.1117/12.347414
Event: International Workshop on Nondestructive Testing and Computer Simulations in Science and Engineering, 1998, St. Petersburg, Russian Federation

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.

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Tachishige Hirose, Katsuhiro Dobashi, Tetsuro Kumita, Yoshimasa Kurihara, Tsunehiko Omori, Toshiyuki Okugi, Kiyohiro Sugiyama, Akira Tsunemi, Junji Urakawa, and Masakazu Washio "Compton scattering of laser off electron beams to generate polarized positron beams for future linear colliders", Proc. SPIE 3687, International Workshop on Nondestructive Testing and Computer Simulations in Science and Engineering, (5 May 1999); https://doi.org/10.1117/12.347414

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