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新山 雅之 所属 京都産業大学 理学部 物理科学科 職種 教授 |
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| 発行・発表の年月 | 2021/12 |
| 形態種別 | その他 |
| 標題 | SPring-8 LEPS2 beamline: A facility to produce a multi-GeV photon beam via laser Compton scattering |
| 執筆形態 | その他 |
| 著者・共著者 | N. Muramatsu,M. Yosoi,T. Yorita,Y. Ohashi,J. K. Ahn,S. Ajimura,Y. Asano,W. C. Chang,J. Y. Chen,S. Date,T. Gogami,H. Hamano,T. Hashimoto,T. Hiraiwa,T. Hotta,T. Ishikawa,Y. Kasamatsu,H. Katsuragawa,R. Kobayakawa,H. Kohri,S. Masumoto,Y. Matsumura,M. Miyabe,K. Mizutani,Y. Morino,T. Nakano,T. Nam,M. Niiyama,Y. Nozawa,H. Ohkuma,H. Ohnishi,T. Ohta,M. Oishi,K. Ozawa,S. Y. Ryu,Y. Sada,H. Saito,T. Shibukawa,H. Shimizu,R. Shirai,M. Shoji,M. Sumihama,S. Suzuki,S. Tanaka,Y. Taniuchi,A. O. Tokiyasu,N. Tomida, |
| 概要 | We have constructed a new laser-Compton-scattering facility, called the LEPS2
beamline, at the 8-GeV electron storage ring, SPring-8. This facility provides a linearly polarized photon beam in a tagged energy range of 1.3--2.4 GeV. Thanks to a small divergence of the low-emittance storage-ring electrons, the tagged photon beam has a size (sigma) suppressed to about 4 mm even after it travels about 130 m to the experimental building that is independent of the storage ring building and contains large detector systems. This beamline is designed to achieve a photon beam intensity higher than that of the first laser-Compton-scattering beamline at SPring-8 by adopting the simultaneous injection of up to four high-power laser beams and increasing a transmittance for the long photon-beam path up to about 77%. The new beamline is under operation for hadron photoproduction experiments. |
| DOI | 10.1016/j.nima.2022.166677 |
| PermalinkURL | http://arxiv.org/abs/2112.07832v1 |
| researchmap用URL | http://arxiv.org/pdf/2112.07832v1 |