2016•Institutional Repositories DataBase (IRDB)Open access
Present Status of KEK Photon Factory and Future Project
Tohru Honda, Masahiro Adachi, Seiji Asaoka, K. Haga, Kentaro Harada, Y. Honda, Xiuguang Jin, T. Kageyama, R. Kato, Yukinori Kobayashi, K. Marutsuka, Tsukasa Miyajima, Hiroshi Miyauchi, Shinya Nagahashi, Norio Nakamura, Kazuyuki Nigorikawa, Takashi Nogami, T. Obina, Masaaki Ono, T. Ozaki, Hidenori Sagehashi, Hiroshi Sakai, S. Sakanaka, Hiroyuki Sasaki, Yoshihiro Sato, Miho Shimada, Tatsuro Shioya, M. Tadano, Toshihiro Tahara, Takeshi Takahashi, Ryota Takai, H. Takaki, Olga Tanaka, Yasunori Tanimoto, K. Tsuchiya, Takashi Uchiyama, Akira Ueda, Kensei Umemori, Ken Watanabe, Masahiro Yamamoto, Naoto Yamamoto, Masato Yoshida, S. Yoshimoto
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Abstract
Two synchrotron radiation sources of KEK, the PF-ring and the PF-AR, continue their user operation with various improvements. Scrap and build of the first generation undulators of 1980s at the PF-ring is pushed forward year by year. Five new elliptically polarized undulators have been installed in these five years, and we have also installed four very narrow-gap short-period undulators generating high brilliant X-ray. The new beam transport line that enables the 6.5-GeV full energy injection for PF-AR will be completed by the end of 2016 in order to make the top-up operation of the two SR sources compatible with the continuous injection for two main rings of the Super-KEKB. We have proposed a project of further upgrade of the 2.5-GeV PF-ring to improve its horizontal emittance as 8 nm rad using combined bending magnets at the arc sections. And we are also moving ahead on proposal of constructing a new KEK light source of an extremely low emittance as 0.3 nm rad. The progress and detail of our future project will be described in this paper.