Rejuvenation of 7-Gev SuperKEKB Injector Linac
| Autor: | Furukawa, Kazuro, Akemoto, Mitsuo, Arakawa, Dai, Arakida, Yoshio, Ego, Hiroyasu, Enomoto, Atsushi, Enomoto, Yoshinori, Higo, Toshiyasu, Honma, Hiroyuki, Iida, Naoko, Ikeda, Mitsuo, Kaji, Hiroshi, Kakihara, Kazuhisa, Kamitani, Takuya, Katagiri, Hiroaki, Kawamura, Masato, Kurashina, Miho, Matsumoto, Shuji, Matsumoto, Toshihiro, Matsushita, Hideki, Michizono, Shinichiro, Mikawa, Katsuhiko, Miura, Takako, Miyahara, Fusashi, Nakajima, Hiromitsu, Nakao, Katsumi, Natsui, Takuya, Nishida, Maya, Ogawa, Yujiro, Ohnishi, Yukiyoshi, Ohsawa, Satoshi, Qiu, Feng, Satake, Itsuka, Satoh, Masanori, Seimiya, Yuji, Shirakawa, Akihiro, Sugimura, Hitoshi, Suwada, Tsuyoshi, Takenaka, Tateru, Tanaka, Madoka, Toge, Nobu, Yano, Yoshiharu, Yokoyama, Kazue, Yoshida, Mitsuhiro, Zhang, Rui, Zhou, Xiangyu |
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| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: | |
| DOI: | 10.18429/jacow-ipac2018-mopmf073 |
| Popis: | KEK injector linac has delivered electrons and positrons for particle physics and photon science experiments for more than 30 years. It was upgraded for the SuperKEKB project, which aims at a 40-fold increase in luminosity over the previous project KEKB, in order to increase our understanding of flavor physics beyond the standard model of elementary particle physics. SuperKEKB energy-asymmetric electron-positron collider with its extremely high luminosity requires a high current, low emittance and low energy spread injection beam from the injector. The electron beam is generated by a new type of RF gun, that provides a much higher beam current to correspond to a large stored beam current and a short lifetime in the ring. The positron source is another major challenge that enhances the positron bunch intensity from 1 to 4 nC by increasing the positron capture efficiency, and the positron beam emittance is reduced from 2000 μm to 10 μm in the vertical plane by introducing a damping ring, followed by the bunch compressor and energy compressor. The summary of the rejuvenation is reported. Proceedings of the 9th Int. Particle Accelerator Conf., IPAC2018, Vancouver, BC, Canada |
| Databáze: | OpenAIRE |
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