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Featured researches published by Katsuhiko Mikawa.


Archive | 2017

Progress of 7-GeV SuperKEKB Injector Linac Upgrade and Commissioning

K. Furukawa; M. Ikeda; Yoshio Arakida; Hiromitsu Nakajima; K. Kakihara; Fusashi Miyahara; Masanori Satoh; A. Shirakawa; Y. Ohnishi; Rui Zhang; H. Katagiri; Takuya Natsui; Dai Arakawa; Yoshiharu Yano; Toshiyasu Higo; M.Kurashina; Katsuhiko Mikawa; H. Matsushita; Y. Ogawa; T. Kamitani; Shuji Matsumoto; Tateru Takenaka; Yoshisato Funahashi; Atsushi Enomoto; Nobu Toge; Hiroshi Kaji; Maya Nishida; Hiroyasu Ego; Xiangyu Zhou; Masato Kawamura

KEK injector linac is being upgraded for the SuperKEKB project, which aims at a 40-fold increase in luminosity over the previous project KEKB. SuperKEKB asymmetric electron and positron collider with its extremely high luminosity requires a high current, low emittance and low energy spread injection beam from the injector. Electron beams will be generated by a new type of RF gun, that will inject a much higher beam current to correspond to a large stored beam current and a short lifetime in the storage 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 by introducing a damping ring, followed by the bunch compressor and energy compressor. The recent status of the upgrade and beam commissioning is reported.


Archive | 2013

HIGH-INTENSITY AND LOW-EMITTANCE UPGRADE OF 7-GeV INJECTOR LINAC TOWARDS SuperKEKB

K. Furukawa; M. Akemoto; Dai Arakawa; Yoshio Arakida; A. Enomoto; Shigeki Fukuda; Hiroyuki Honma; Ryo Ichimiya; N. Iida; M. Ikeda; E. Kadokura; K. Kakihara; T. Kamitani; H. Katagiri; M.Kurashina; S. Matsumoto; T. Matsumoto; H. Matsushita; S. Michizono; Katsuhiko Mikawa; Takako Miura; Fusashi Miyahara; T. Mori; Hideo Nakajima; K. Nakao; Takuya Natsui; Yujiro Ogawa; S. Ohsawa; Feng Qiu; M. Satoh


Archive | 2014

SuperKEKB POSITRON SOURCE CONSTRUCTION STATUS

T. Kamitani; M. Akemoto; Dai Arakawa; Yoshio Arakida; A. Enomoto; Shigeki Fukuda; Y. Funakoshi; K. Furukawa; Toshiyasu Higo; Hiroyuki Honma; N. Iida; M. Ikeda; E. Kadokura; H. Kaji; K. Kakihara; H. Katagiri; M. Kikuchi; H. Koiso; M.Kurashina; S. Matsumoto; T. Matsumoto; H. Matsushita; S. Michizono; Katsuhiko Mikawa; T. Mimashi; T. Miura; Fusashi Miyahara; T. Mori; A. Morita; Hideo Nakajima


Progress of Theoretical and Experimental Physics | 2013

Accelerator control system at KEKB and the linac

Atsuyoshi Akiyama; K. Furukawa; E. Kadokura; M.Kurashina; Katsuhiko Mikawa; Tatsuro Nakamura; J. Odagiri; Masanori Satoh; T. Suwada


Archive | 2010

Injector Linac Upgrade for SuperKEKB

T. Kamitani; M. Akemoto; Dai Arakawa; A. Enomoto; Shigeki Fukuda; K. Furukawa; Toshiyasu Higo; Hiroyuki Honma; K. Hosoyama; N. Iida; M. Ikeda; E. Kadokura; K. Kakihara; H. Katagiri; M. Kikuchi; Yuuji Kojima; M.Kurashina; S. Matsumoto; T. Matsumoto; H. Matsushita; S. Michizono; Katsuhiko Mikawa; T. Mimashi; Takako Miura; Hideo Nakajima; K. Nakanishi; K. Nakao; Y. Ogawa; S. Ohsawa; Toshiya Sanami


Archive | 2013

HIGH-INTENSITY AND LOW-EMITTANCE UPGRADE

K. Furukawa; M. Akemoto; Dai Arakawa; Yoshio Arakida; A. Enomoto; Shigeki Fukuda; Hiroyuki Honma; Ryo Ichimiya; N. Iida; M. Ikeda; E. Kadokura; K. Kakihara; T. Kamitani; H. Katagiri; M.Kurashina; S. Matsumoto; T. Matsumoto; H. Matsushita; S. Michizono; Katsuhiko Mikawa; Takako Miura; Fusashi Miyahara; T. Mori; Hideo Nakajima; K. Nakao; Takuya Natsui; Yujiro Ogawa; S. Ohsawa; Feng Qiu; M. Satoh


Archive | 2012

LINAC UPGRADE IN INTENSITY AND EMITTANCE FOR SUPERKEKB

Toshiyasu Higo; M. Akemoto; Dai Arakawa; Yoshio Arakida; A. Enomoto; Shigeki Fukuda; K. Furukawa; Y. Higashi; Hiroyuki Honma; N. Iida; M. Ikeda; E. Kadokura; K. Kakihara; T. Kamitani; H. Katagiri; M.Kurashina; S. Matsumoto; T. Matsumoto; H. Matsushita; S. Michizono; Katsuhiko Mikawa; Takako Miura; Fusashi Miyahara; T. Mori; Hideo Nakajima; K. Nakao; Takuya Natsui; Y.Ogawa; S. Ohsawa; M. Satoh


Archive | 2012

POSITRON INJECTOR LINAC UPGRADE FOR SUPERKEKB

T. Kamitani; M. Akemoto; Yoshio Arakida; Dai Arakawa; A. Enomoto; Shigeki Fukuda; K. Furukawa; Y. Higashi; Toshiyasu Higo; Hiroyuki Honma; N. Iida; M. Ikeda; E. Kadokura; K. Kakihara; H. Katagiri; M.Kurashina; H. Matsushita; S. Matsumoto; T. Matsumoto; S. Michizono; Katsuhiko Mikawa; Takako Miura; Fusashi Miyahara; T. Mori; Hideo Nakajima; K. Nakao; Takuya Natsui; S. Ohsawa; Y. Ogawa; M. Satoh


5th Int. Particle Accelerator Conf. (IPAC'14), Dresden, Germany, June 15-20, 2014 | 2014

UPGRADE STATUS OF INJECTOR LINAC FOR SuperKEKB

Takako Miura; M. Akemoto; Dai Arakawa; Yoshio Arakida; Atsushi Enomoto; Shigeki Fukuda; Y. Funakoshi; K. Furukawa; Toshiyasu Higo; Hiroyuki Honma; Ryo Ichimiya; N. Iida; M. Ikeda; E. Kadokura; Hiroshi Kaji; K. Kakihara; T. Kamitani; H. Katagiri; M.Kurashina; Shuji Matsumoto; T. Matsumoto; H. Matsushita; S. Michizono; Katsuhiko Mikawa; Fusashi Miyahara; Hiromitsu Nakajima; K. Nakao; Takuya Natsui; Y. Ogawa; Y. Ohnishi


5th Int. Particle Accelerator Conf. (IPAC'14), Dresden, Germany, June 15-20, 2014 | 2014

Design, Manufacture and Operation of the Beam Spoiler for Positron Target Protection

Lei Zang; K. Kakihara; T. Kamitani; Katsuhiko Mikawa; Fusashi Miyahara; T. Suwada

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