Stable top-up operation at SPring-8

Hitoshi Tanaka; Masatoshi Adachi; Tsuyoshi Aoki; Takao Asaka; Alfred Baron; Shin Daté; Kenji Fukami; Yukito Furukawa; Hirofumi Hanaki; Naoyasu Hosoda; Tetsuya Ishikawa; Hiroaki Kimura; Kazuo Kobayashi; Toshiaki Kobayashi; Shinji Kohara; Noritaka Kumagai; Mitsuhiro Masaki; Takemasa Masuda; Sakuo Matsui; Akihiko Mizuno; Takeshi Nakamura; Takeshi Nakatani; Takashi Noda; Toru Ohata; Haruo Ohkuma; Takashi Ohshima; Masaya Oishi; Sigeki Sasaki; Jun Schimizu; Masazumi Shoji; Kouichi Soutome; Motohiro Suzuki; Shinsuke Suzuki; Yoshio Suzuki; Shirou Takano; Masaru Takao; Takeo Takashima; Hideki Takebe; Akihisa Takeuchi; Kazuhiro Tamura; Ryotaro Tanaka; Yoshihito Tanaka; Tsutomu Taniuchi; Yukiko Taniuchi; Kouji Tsumaki; Akihiro Yamashita; Kenichi Yanagida; Yoshitaka Yoda; Hiroto Yonehara; Tetsuhiko Yorita; Masamichi Yoshioka; Masaki Takata

doi:10.1107/S0909049506022862

Stable top-up operation at SPring-8

Hitoshi Tanaka, Masatoshi Adachi, Tsuyoshi Aoki, Takao Asaka, Alfred Baron, Shin Daté, Kenji Fukami, Yukito Furukawa, Hirofumi Hanaki, Naoyasu Hosoda, Tetsuya Ishikawa, Hiroaki Kimura, Kazuo Kobayashi, Toshiaki Kobayashi, Shinji Kohara, Noritaka Kumagai, Mitsuhiro Masaki, Takemasa Masuda, Sakuo Matsui, Akihiko MizunoTakeshi Nakamura, Takeshi Nakatani, Takashi Noda, Toru Ohata, Haruo Ohkuma, Takashi Ohshima, Masaya Oishi, Sigeki Sasaki, Jun Schimizu, Masazumi Shoji, Kouichi Soutome, Motohiro Suzuki, Shinsuke Suzuki, Yoshio Suzuki, Shirou Takano, Masaru Takao, Takeo Takashima, Hideki Takebe, Akihisa Takeuchi, Kazuhiro Tamura, Ryotaro Tanaka, Yoshihito Tanaka, Tsutomu Taniuchi, Yukiko Taniuchi, Kouji Tsumaki, Akihiro Yamashita, Kenichi Yanagida, Yoshitaka Yoda, Hiroto Yonehara, Tetsuhiko Yorita, Masamichi Yoshioka, Masaki Takata

SRIS - SR Core Research Division

Research output: Contribution to journal › Review article › peer-review

40 Citations (Scopus)

Abstract

Top-up operation allows SPring-8 to provide highly stable X-ray beams with arbitrary filling patterns. The implementation of top-up operation is described, with a focus on the simultaneous achievement of stability of stored current, beam orbit, purity of an isolated single bunch, and beam injection efficiency. Stored-current fluctuations have been routinely reduced to a level of 10 ^-3. Stored-beam oscillation on frequent beam injection, which was originally regarded as the most serious problem, has been successfully suppressed to a sufficiently low level that it never perturbs imaging experiments. Current impurities in nominally empty buckets have been reduced to a level of 10^-9 over more than one week of operation, making possible the measurement of time-resolved spectra using high-current bunches. Finally, excellent injection efficiency, higher than 80%, is routinely obtained, even for small undulator gaps, which is critical for preventing radiation damage to insertion-device magnets and to reduce leakage radiation. The process of achieving highly stabilized top-up operation at SPring-8 and its utility for user experiments are described.

Original language	English
Pages (from-to)	378-391
Number of pages	14
Journal	Journal of Synchrotron Radiation
Volume	13
Issue number	5
DOIs	https://doi.org/10.1107/S0909049506022862
Publication status	Published - 2006 Sept

Keywords

Heat load
Injection-beam loss
Purity
Stability
Thermal equilibrium
Top-up operation

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10.1107/S0909049506022862

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Tanaka, H., Adachi, M., Aoki, T., Asaka, T., Baron, A., Daté, S., Fukami, K., Furukawa, Y., Hanaki, H., Hosoda, N., Ishikawa, T., Kimura, H., Kobayashi, K., Kobayashi, T., Kohara, S., Kumagai, N., Masaki, M., Masuda, T., Matsui, S., ... Takata, M. (2006). Stable top-up operation at SPring-8. Journal of Synchrotron Radiation, 13(5), 378-391. https://doi.org/10.1107/S0909049506022862

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title = "Stable top-up operation at SPring-8",

abstract = "Top-up operation allows SPring-8 to provide highly stable X-ray beams with arbitrary filling patterns. The implementation of top-up operation is described, with a focus on the simultaneous achievement of stability of stored current, beam orbit, purity of an isolated single bunch, and beam injection efficiency. Stored-current fluctuations have been routinely reduced to a level of 10 -3. Stored-beam oscillation on frequent beam injection, which was originally regarded as the most serious problem, has been successfully suppressed to a sufficiently low level that it never perturbs imaging experiments. Current impurities in nominally empty buckets have been reduced to a level of 10-9 over more than one week of operation, making possible the measurement of time-resolved spectra using high-current bunches. Finally, excellent injection efficiency, higher than 80%, is routinely obtained, even for small undulator gaps, which is critical for preventing radiation damage to insertion-device magnets and to reduce leakage radiation. The process of achieving highly stabilized top-up operation at SPring-8 and its utility for user experiments are described.",

keywords = "Heat load, Injection-beam loss, Purity, Stability, Thermal equilibrium, Top-up operation",

author = "Hitoshi Tanaka and Masatoshi Adachi and Tsuyoshi Aoki and Takao Asaka and Alfred Baron and Shin Dat{\'e} and Kenji Fukami and Yukito Furukawa and Hirofumi Hanaki and Naoyasu Hosoda and Tetsuya Ishikawa and Hiroaki Kimura and Kazuo Kobayashi and Toshiaki Kobayashi and Shinji Kohara and Noritaka Kumagai and Mitsuhiro Masaki and Takemasa Masuda and Sakuo Matsui and Akihiko Mizuno and Takeshi Nakamura and Takeshi Nakatani and Takashi Noda and Toru Ohata and Haruo Ohkuma and Takashi Ohshima and Masaya Oishi and Sigeki Sasaki and Jun Schimizu and Masazumi Shoji and Kouichi Soutome and Motohiro Suzuki and Shinsuke Suzuki and Yoshio Suzuki and Shirou Takano and Masaru Takao and Takeo Takashima and Hideki Takebe and Akihisa Takeuchi and Kazuhiro Tamura and Ryotaro Tanaka and Yoshihito Tanaka and Tsutomu Taniuchi and Yukiko Taniuchi and Kouji Tsumaki and Akihiro Yamashita and Kenichi Yanagida and Yoshitaka Yoda and Hiroto Yonehara and Tetsuhiko Yorita and Masamichi Yoshioka and Masaki Takata",

year = "2006",

month = sep,

doi = "10.1107/S0909049506022862",

language = "English",

volume = "13",

pages = "378--391",

journal = "Journal of Synchrotron Radiation",

issn = "0909-0495",

publisher = "International Union of Crystallography",

number = "5",

}

Tanaka, H, Adachi, M, Aoki, T, Asaka, T, Baron, A, Daté, S, Fukami, K, Furukawa, Y, Hanaki, H, Hosoda, N, Ishikawa, T, Kimura, H, Kobayashi, K, Kobayashi, T, Kohara, S, Kumagai, N, Masaki, M, Masuda, T, Matsui, S, Mizuno, A, Nakamura, T, Nakatani, T, Noda, T, Ohata, T, Ohkuma, H, Ohshima, T, Oishi, M, Sasaki, S, Schimizu, J, Shoji, M, Soutome, K, Suzuki, M, Suzuki, S, Suzuki, Y, Takano, S, Takao, M, Takashima, T, Takebe, H, Takeuchi, A, Tamura, K, Tanaka, R, Tanaka, Y, Taniuchi, T, Taniuchi, Y, Tsumaki, K, Yamashita, A, Yanagida, K, Yoda, Y, Yonehara, H, Yorita, T, Yoshioka, M & Takata, M 2006, 'Stable top-up operation at SPring-8', Journal of Synchrotron Radiation, vol. 13, no. 5, pp. 378-391. https://doi.org/10.1107/S0909049506022862

TY - JOUR

T1 - Stable top-up operation at SPring-8

AU - Tanaka, Hitoshi

AU - Adachi, Masatoshi

AU - Aoki, Tsuyoshi

AU - Asaka, Takao

AU - Baron, Alfred

AU - Daté, Shin

AU - Fukami, Kenji

AU - Furukawa, Yukito

AU - Hanaki, Hirofumi

AU - Hosoda, Naoyasu

AU - Ishikawa, Tetsuya

AU - Kimura, Hiroaki

AU - Kobayashi, Kazuo

AU - Kobayashi, Toshiaki

AU - Kohara, Shinji

AU - Kumagai, Noritaka

AU - Masaki, Mitsuhiro

AU - Masuda, Takemasa

AU - Matsui, Sakuo

AU - Mizuno, Akihiko

AU - Nakamura, Takeshi

AU - Nakatani, Takeshi

AU - Noda, Takashi

AU - Ohata, Toru

AU - Ohkuma, Haruo

AU - Ohshima, Takashi

AU - Oishi, Masaya

AU - Sasaki, Sigeki

AU - Schimizu, Jun

AU - Shoji, Masazumi

AU - Soutome, Kouichi

AU - Suzuki, Motohiro

AU - Suzuki, Shinsuke

AU - Suzuki, Yoshio

AU - Takano, Shirou

AU - Takao, Masaru

AU - Takashima, Takeo

AU - Takebe, Hideki

AU - Takeuchi, Akihisa

AU - Tamura, Kazuhiro

AU - Tanaka, Ryotaro

AU - Tanaka, Yoshihito

AU - Taniuchi, Tsutomu

AU - Taniuchi, Yukiko

AU - Tsumaki, Kouji

AU - Yamashita, Akihiro

AU - Yanagida, Kenichi

AU - Yoda, Yoshitaka

AU - Yonehara, Hiroto

AU - Yorita, Tetsuhiko

AU - Yoshioka, Masamichi

AU - Takata, Masaki

PY - 2006/9

Y1 - 2006/9

N2 - Top-up operation allows SPring-8 to provide highly stable X-ray beams with arbitrary filling patterns. The implementation of top-up operation is described, with a focus on the simultaneous achievement of stability of stored current, beam orbit, purity of an isolated single bunch, and beam injection efficiency. Stored-current fluctuations have been routinely reduced to a level of 10 -3. Stored-beam oscillation on frequent beam injection, which was originally regarded as the most serious problem, has been successfully suppressed to a sufficiently low level that it never perturbs imaging experiments. Current impurities in nominally empty buckets have been reduced to a level of 10-9 over more than one week of operation, making possible the measurement of time-resolved spectra using high-current bunches. Finally, excellent injection efficiency, higher than 80%, is routinely obtained, even for small undulator gaps, which is critical for preventing radiation damage to insertion-device magnets and to reduce leakage radiation. The process of achieving highly stabilized top-up operation at SPring-8 and its utility for user experiments are described.

AB - Top-up operation allows SPring-8 to provide highly stable X-ray beams with arbitrary filling patterns. The implementation of top-up operation is described, with a focus on the simultaneous achievement of stability of stored current, beam orbit, purity of an isolated single bunch, and beam injection efficiency. Stored-current fluctuations have been routinely reduced to a level of 10 -3. Stored-beam oscillation on frequent beam injection, which was originally regarded as the most serious problem, has been successfully suppressed to a sufficiently low level that it never perturbs imaging experiments. Current impurities in nominally empty buckets have been reduced to a level of 10-9 over more than one week of operation, making possible the measurement of time-resolved spectra using high-current bunches. Finally, excellent injection efficiency, higher than 80%, is routinely obtained, even for small undulator gaps, which is critical for preventing radiation damage to insertion-device magnets and to reduce leakage radiation. The process of achieving highly stabilized top-up operation at SPring-8 and its utility for user experiments are described.

KW - Heat load

KW - Injection-beam loss

KW - Purity

KW - Stability

KW - Thermal equilibrium

KW - Top-up operation

UR - http://www.scopus.com/inward/record.url?scp=33747854416&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33747854416&partnerID=8YFLogxK

U2 - 10.1107/S0909049506022862

DO - 10.1107/S0909049506022862

M3 - Review article

C2 - 16924134

AN - SCOPUS:33747854416

SN - 0909-0495

VL - 13

SP - 378

EP - 391

JO - Journal of Synchrotron Radiation

JF - Journal of Synchrotron Radiation

IS - 5

ER -

Stable top-up operation at SPring-8

Abstract

Keywords

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