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Yamano, Yasushi*; Kobayashi, Shinichi*; Matsukawa, Makoto
Proceedings of 20th International Symposium on Discharges and Electrical Insulation in Vacuum, p.419 - 422, 2002/07
no abstracts in English
Kobayashi, Shinichi*; Yamano, Yasushi*; Matsukawa, Makoto
Denki Gakkai Kenkyukai Shiryo, p.79 - 84, 2001/11
no abstracts in English
Nomura, Masahiro; Toyama, Shinichi; ; ; Yamazaki, Yoshio; Hirano, Koichiro; Omura, Akiko
JNC TN9410 2000-007, 376 Pages, 2000/03
JNC-TN9410-2000-007.pdf:15.51MB
According to the Long-Term Program for Partitioning and Transmutation which was published by the Atomic Energy Commission in 1988, study on the transmutation using an electron accelerator, which was a part of the program, has been carried out in the O-arai Engineering Center. It is the study on converting radioactive fission products for example Strontium and Cesium to stable nuclides by photonuclear reaction caused by high energy gamma-ray made by an electron accelerator. It was thought that a 100mA-100MeV (10MW output power) accelerator would be needed in order to carry out the transmutation study in engineering phase. Therefore, development of the High-Current Electron Accelerator whose target had been 20mA-10MeV (200 kW output power) accelerator was carried out as development of elemental technologies on beam stabilization. The conceptual design of the accelerator was started in 1989. In March 1997, the main facility of this accelerator was completed. The test operation was carried out to confiim the performance of the accelerator from January, 1999 to December. As the result, an output of about 14 kW was achieved. In addition, the electron beam of 40 kW could be to accelerate in short time. In this report, the design, fabrication and evalution of performance of the facilities are presented.
; ; Toyama, Shinichi; Hasegawa, Makoto
JNC TN9410 2000-005, 182 Pages, 2000/03
JNC-TN9410-2000-005.pdf:5.73MB
According to the Long-term Program for Partitioning and Transmutation which was published by the Atomic Energy Commission in 1988, study on the transmutation using an electron accelerator, which was a part of the program, has been carried out in the O-arai Engineering Center. It is the study on converting radioactive fission products for example Strontium and Cesium to stable nuclides by photonuclear reaction caused by high energy gamma-ray made by an electron accelerator. It was thought that a 100mA-100Mev (10MW output power) accelerator would be needed in order to carry out the transmutation study in engineering phase. Therefore, development of the High-Current Electron Accelerator whose target had been 20mA-10Mev (200kW output power) accelerator was carried out as development of elemental technologies on beam stabilization. Construction of the accelerator was completed in March, 1997, afler development of the elemental devices. After the facility assessment, the full-scale experiment of the accelerator was started in January, 1999. However, the reform of the Power Reactor and Nuclear Fuel Development Corporation caused by the fire and explosion accident in the Asphalt Bitumenizing Facility was hardly discussed between the completion and the starting the experiment. It was decided that development of the accelerator would be terminated until the fiscal year 1999, results of the development would be summarized, and the developed accelerator would be planed to utilize as a beam utilization facility, in the Medium-Long-term Project Program of the Japan Nuclear Fuel Cycle Development Institute which was in March, 1999. It showed the direction that research and development for transmutation would be terminated. According to the Medium-Long-Term Project Program, the utilization of the accelerator was discussed, and research themes of the utilization of the accelerator in the various fields as well as nuclear field were investigated.
Matsuda, Makoto; Takeuchi, Suehiro; Kobayashi, Chiaki*
KEK Proceedings 99-22, p.17 - 27, 2000/01
no abstracts in English
Matsukawa, Makoto; Miura, Yushi; Terakado, Tsunehisa; Kimura, Toyoaki; Oshima, Iwao*; Kawashima, Shuichi*
Proceedings of International Symposium on Discharges and Electrical Insulation in Vacuum (ISDEIV 2000), 2, p.415 - 418, 2000/00
no abstracts in English
; Toyama, Shinichi; Nomura, Masahiro; Hirano, Koichiro; Yamazaki, Yoshio; Sato, Isamu
JNC TN9400 99-073, 18 Pages, 1999/08
A short traveling wave accelerator with a traveling wave resonant ring is proposed for high beam current accelerators (including the linear accelerator, circular accelerator and storage ring). It is a normal conducting accelerator. The CW beam current can be as high as 10A. Such kind of accelerator unit has large beam holes for damping all of the cavity high order modes in order to avoid the resonant buildup of the fields that would cause multibunch instabilities at high currents. It has high efficiency, high power input capability and low K
. It is called "single mode" type. Even though beams are accelerated off the crest for phase stability in circular accelerator, the cavities do not need detuning.
Matsuda, Makoto; Takeuchi, Suehiro; Kobayashi, Chiaki*
Dai-12-Kai Tandemu Kasokuki Oyobi Sono Shuhen Gijutsu No Kenkyukai Hokokushu, p.113 - 116, 1999/00
no abstracts in English
Sn superconducting wire and large current conductorIsono, Takaaki; Nunoya, Yoshihiko; Matsui, Kunihiro; Sugimoto, Makoto; Yoshida, Kiyoshi; Nishi, Masataka; Takahashi, Yoshikazu; Ando, Toshinari; Tsuji, Hiroshi; Shimamoto, Susumu*
Denki Gakkai Rombunshi, B, 119(11), p.1263 - 1269, 1999/00
no abstracts in English
Kawai, Mikito; Akino, Noboru; Ebisawa, Noboru; Honda, Atsushi; Ito, Takao; Kazawa, Minoru; Kuriyama, Masaaki; Mogaki, Kazuhiko; Oga, Tokumichi; Ohara, Hiroshi; et al.
JAERI-Tech 98-042, 32 Pages, 1998/09
no abstracts in English
Wang, Y.
PNC TN9410 98-017, 21 Pages, 1998/02
"Injector Test (1) of PNC High Power Electron Linac" was mentioned in last year report. 100mA beam with pulse length 20
s repetition rate 1Hz and 50mA beam with pulse 1ms 0.5 Hz had been accelerated to 3.0 Mev successfully. The chopper and prebuncher system had not been used in that test. Now this report put emphases on the chopper and prebuncher systems tests. A good energy spectrum had been achieved using the chopper and prebuncher systems. And 100mA beam current with pulse length 3ms and repetition rate 0.1Hz was accelerated to 3.0 MeV.
Okumura, Yoshikazu; Hanada, Masaya; Miyamoto, Naoki*; Miyamoto, Kenji; Fujiwara, Yukio; Watanabe, Kazuhiro
Dai-9-Kai Ryushisen No Sentanteki Oyo Gijutsu Ni Kansuru Shimpojiumu (BEAMS1998), p.101 - 104, 1998/00
no abstracts in English
Sugimoto, Masayoshi
Proc. of 2nd Int. Topical Meeting on Nuclear Applications of Accelerator Technology (AccApp'98), p.566 - 571, 1998/00
no abstracts in English
Ohara, Yoshihiro
Purazuma, Kaku Yugo Gakkai-Shi, 72(5), p.393 - 402, 1996/00
no abstracts in English
Okumura, Yoshikazu; *; *; *; *
Genshiryoku To Sentan Gijutsu, 2; NSA/Commentaries, No.3, p.135 - 169, 1995/06
no abstracts in English
beams in a cesium seeded volume negative ion source equipped with PG filterTanaka, Masanobu*; Hanada, Masaya; Inoue, Takashi; Okumura, Yoshikazu
JAERI-M 93-132, 25 Pages, 1993/07
no abstracts in English
Tanaka, Shigeru
Kaku Yugo Kenkyu, 67(5), p.399 - 411, 1992/05
no abstracts in English
Okumura, Yoshikazu; Hanada, Masaya; Inoue, Takashi; Ohara, Yoshihiro; Mizuno, Makoto; Suzuki, Yasuo*; Tanaka, Hideki*; Watanabe, Kazuhiro
Dai-1-Kai Ryushisen No Sentanteki Oyo Gijutsu Ni Kansuru Wakushoppu, p.69 - 72, 1990/11
no abstracts in English
Ohara, Yoshihiro; Akiba, Masato; Araki, Masanori; Dairaku, Masayuki; Hanada, Masaya; Inoue, Takashi; Kojima, Hiroaki; Kuriyama, Masaaki; *; Matsuoka, Mamoru; et al.
JAERI-M 90-154, 119 Pages, 1990/09
no abstracts in English
Kawamata, Yoichi; Kurihara, Kenichi; Kimura, Toyoaki;
JAERI-M 90-005, 30 Pages, 1990/02
no abstracts in English
