Green upgrading of SPring-8 to produce stable, ultrabrilliant hard X-ray beams

被引:1
|
作者
Tanaka, Hitoshi [1 ]
Watanabe, Takahiro [1 ,2 ]
Abe, Toshinori [2 ]
Azumi, Noriyoshi [2 ]
Aoki, Tsuyoshi [2 ]
Dewa, Hideki [2 ]
Fujita, Takahiro [2 ]
Fukami, Kenji [1 ,2 ]
Fukui, Toru [1 ]
Hara, Toru [1 ]
Hiraiwa, Toshihiko [1 ]
Imamura, Kei [2 ]
Inagaki, Takahiro [1 ,2 ]
Iwai, Eito [1 ,2 ]
Kagamihata, Akihiro [2 ]
Kawase, Morihiro [2 ]
Kida, Yuichiro [2 ]
Kondo, Chikara [1 ,2 ]
Maesaka, Hirokazu [1 ,2 ]
Magome, Tamotsu [2 ]
Masaki, Mitsuhiro [2 ]
Masuda, Takemasa [2 ]
Matsubara, Shinichi [2 ]
Matsui, Sakuo [1 ]
Ohshima, Takashi [1 ,2 ]
Oishi, Masaya [1 ,2 ]
Seike, Takamitsu [2 ]
Shoji, Masazumi [1 ,2 ]
Soutome, Kouichi [1 ,2 ]
Sugimoto, Takashi [1 ,2 ]
Suzuki, Shinji [2 ]
Tajima, Minori [2 ]
Takano, Shiro [1 ,2 ]
Tamura, Kazuhiro [1 ,2 ]
Tanaka, Takashi [1 ,2 ]
Taniuchi, Tsutomu [2 ]
Taniuchi, Yukiko [2 ]
Togawa, Kazuaki [1 ]
Tomai, Takato [2 ]
Ueda, Yosuke [2 ]
Yamaguchi, Hiroshi [2 ]
Yabashi, Makina [1 ,2 ]
Ishikawa, Tetsuya [1 ]
机构
[1] RIKEN SPring 8 Ctr, 1-1-1 Kouto, Sayo, Hyogo 6795148, Japan
[2] Japan Synchrotron Radiat Res Inst JASRI, 1-1-1 Kouto, Sayo, Hyogo 6795198, Japan
关键词
next generation light source; accelerator; low emittance; sustainability; low-emittance storage ring; FREE-ELECTRON LASER; BEAMLINE;
D O I
10.1107/S1600577524008348
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
SPring-8-II is a major upgrade project of SPring-8 that was inaugurated in October 1997 as a third-generation synchrotron radiation light source. This upgrade project aims to achieve three goals simultaneously: achievement of excellent light source performance, refurbishment of aged systems, and significant reduction in power consumption for the entire facility. A small emittance of 50 pm rad will be achieved by (1) replacing the existing double-bend lattice structure with a five-bend achromat one, (2) lowering the stored beam energy from 8 to 6 GeV, (3) increasing the horizontal damping partition number from 1 to 1.3, and (4) enhancing horizontal radiation damping by installing damping wigglers in long straight sections. The use of short-period in-vacuum undulators allows ultrabrilliant X-rays to be provided while keeping a high-energy spectral range even at the reduced electron-beam energy of 6 GeV. To reduce power consumption, the dedicated, aged injector system has been shut down and the high-performance linear accelerator of SACLA, a compact X-ray free-electron laser (XFEL) facility, is used as the injector of the ring in a time-shared manner. This allows the simultaneous operation of XFEL experiments at SACLA and full/top-up injection of the electron beam into the ring. This paper overviews the concept of the SPring-8-II project, the system design of the light source and the details of the accelerator component design.
引用
收藏
页码:1420 / 1437
页数:18
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