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Featured researches published by T. Arai.


Review of Scientific Instruments | 2011

A solid-state Marx generator driven Einzel lens chopper

T. Adachi; T. Arai; K. W. Leo; Ken Takayama; A. Tokuchi

A new type of pulse chopper called an Einzel lens chopper is described. An Einzel lens placed immediately after an electron cyclotron resonance ion source is driven by high-voltage pulses generated by a newly developed solid-state Marx generator. A rectangular negative barrier pulse-voltage is controlled in time, and the barrier pulse is turned on only when a beam pulse is required. The results of successful experiments are reported herein.


Physical Review Special Topics-accelerators and Beams | 2011

KEK digital accelerator

Taiki Iwashita; Toshikazu Adachi; Ken Takayama; Kwee Wah Leo; T. Arai; Yoshio Arakida; M. Hashimoto; E. Kadokura; M. Kawai; Tadamichi Kawakubo; T. Kubo; Kazuyoshi Koyama; H. Nakanishi; K. Okazaki; Katsuya Okamura; Hirohiko Someya; A. Takagi; Akira Tokuchi; M. Wake


Physical Review Special Topics-accelerators and Beams | 2014

Induction acceleration of heavy ions in the KEK digital accelerator: Demonstration of a fast-cycling induction synchrotron

Ken Takayama; Takashi Yoshimoto; M. Barata; Leo Kwee Wah; Liu Xingguang; Taiki Iwashita; Shinya Harada; Toshikazu Adachi; T. Arai; Dai Arakawa; Hiroyuki Asao; E. Kadokura; Tadamichi Kawakubo; H. Nakanishi; Yoshihito Okada; Katsuya Okamura; K. Okazaki; A. Takagi; Susumu Takano; M. Wake


Physical Review Special Topics-accelerators and Beams | 2013

Einzel lens chopper and behavior of the chopped beam in the KEK digital accelerator

Kwee Wah Leo; Tomohiro Adachi; T. Arai; Ken Takayama


Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment | 2014

Heavy ion beam acceleration in the KEK digital accelerator: Induction acceleration from 200 keV to a few tens of MeV

Takashi Yoshimoto; M. Barata; Taiki Iwashita; Shinya Harada; Dai Arakawa; T. Arai; Xingguang Liu; Tomohiro Adachi; Hiroyuki Asao; E. Kadokura; T. Kawakubo; T. Kubo; Kwee Wah Leo; H. Nakanishi; Yoshihito Okada; Katsuya Okamura; K. Okazaki; Hirohiko Someya; Ken Takayama; M. Wake


Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms | 2013

Heavy ion beam factory for material science based on the KEK digital accelerator

Ken Takayama; Toshikazu Adachi; T. Arai; Dai Arakawa; Hiroyuki Asao; Yuji Barata; Shinya Harada; Kazuhiko Horioka; Taiki Iwata; E. Kadokura; Tadamichi Kwakubo; T. Kubo; Kwee Wah Leo; Xingguaung Liu; Koichi Mochiki; Naoya Munemoto; H. Nakanishi; Yoshihito Okada; Katsuya Okamura; M. Okamura; K. Okazaki; Hirohiko Someya; K. Takahashi; Susumu Takano; M. Wake; Takashi Yoshimoto


Archive | 2011

KEK DIGITAL ACCELERATOR AND ITS BEAM COMMISSIONING

Ken Takayama; T. Arai; Yoshio Arakida; M.Hasimoto; Taiki Iwashita; E. Kadokura; Tadamichi Kawakubo; T. Kubo; H. Nakanishi; Katsuya Okamura; Hirohiko Someya; A. Takagi; M. Wake


Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment | 2014

KEK digital accelerator and latest switching device R&D

Ken Takayama; Toshikazu Adachi; T. Arai; Dai Arakawa; E. Kadokura; Tadamichi Kawakubo; H. Nakanishi; Katsuya Okamura; Hirohiko Someya; M. Wake; Leo Kwee Wah; Liu Xingguang; Takashi Yoshimoto; Yuji Barata; Shinya Harada; Hiroyuki Asao; Yoshihito Okada; Taiki Iwashita; K. Okazaki; Yutaka Osawa; Keiichi Ise; Toshiya Mizushima; Koichi Takagi


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

WIDE-BAND INDUCTION ACCELERATION IN THE KEK DIGITAL ACCELERATOR*

Takashi Yoshimoto; Toshikazu Adachi; T. Arai; Hiroyuki Asao; Masatake Hirose; E. Kadokura; Tadamichi Kawakubo; Hiroshi Kobayashi; Xingguang Liu; Yoshihito Okada; Katsuya Okamura; Susumu Takano; Ken Takayama


Presented at | 2010

Ion Source and Low Energy Beam Transport for the KEK Digital Accelerator

Ken Takayama; Kwee Wah Leo; Takashi Kikuchi; Tadamichi Kawakubo; Toshikazu Adachi; Yoshio Arakida; Kazuyoshi Koyama; Kaizhi Zhang; A. Takagi; T. Kubo; Mituo Hasimoto; H. Nakanishi; Kohji Okazaki; Tadashi Kubo; T. Arai

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