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Ishikawa, Hirotaku*; Kai, Tetsuya; Sato, Hirotaka*; Kamiyama, Takashi*
Journal of Nuclear Science and Technology, 56(2), p.221 - 227, 2019/02
Times Cited Count：3 Percentile：31.36(Nuclear Science & Technology)
Co 
-ray irradiation facilitiesUno, Sadanori; Hanaya, Hiroaki; Yamagata, Ryohei; Seito, Hajime; Nagao, Yuto; Yamasaki, Shota; Agematsu, Takashi; Kawashima, Ikuo*; Yagi, Norihiko*; Takagi, Masahide*; et al.
JAEA-Review 2015-022, JAEA Takasaki Annual Report 2014, P. 172, 2016/02
This paper reports on the operation status of the -ray irradiation facilities and the electron accelerator in fiscal 2014 at the Takasaki Advanced Radiation Research Institute of JAEA. The -ray irradiation facilities were operated smoothly, whereas the electron accelerator stopped for five months because of successive troubles of discharge due to deterioration of equipment over thirty-four years. The annual operation times of the -ray irradiation facilities of the first, second and food buildings were 19,907, 13,831 and 7,293 hours, respectively, and that of the electron accelerator was 746 hours. The -ray irradiation facilities were replenished with new five sources of 2.22 PBq, and twenty old sources were removed for disposal. The electron accelerator was repaired for each trouble, however, the complete recovery has not yet been achieved.
Inoue, Takashi; Kashiwagi, Mieko; Taniguchi, Masaki; Dairaku, Masayuki; Hanada, Masaya; Watanabe, Kazuhiro; Sakamoto, Keishi
Nuclear Fusion, 46(6), p.S379 - S385, 2006/06
Times Cited Count：35 Percentile：74.41(Physics, Fluids & Plasmas)The JAERI MeV accelerator has been designed extrapolating vacuum insulation design guidelines (the clump theory and Paschen law) to Mega Volt and long vacuum gap. Reduction of electric field concentration at triple junction by a large stress ring was effective to prevent flashover along insulator surface. By the vacuum insulation technology above, the accelerator sustained 1 MV for 8,500 s continuously. Strong enhancement of negative ion surface production has been attained by stopping vacuum leaks due to SF
permeation through Viton O rings and a damage of port by backstream ions, followed by increase of the H
ion current density without saturation. Operating the KAMABOKO source with high power arc discharge (
40 kW), H ion beams of 146 A/m
(total ion current: 0.2 A) have been obtained stably at the beam energy of 836 keV (pulse length: 
0.2 s). Bremsstrahlung generation in the accelerator is also estimated from EGS4 analysis, and then discussion on the breakdown possibility follows.
Imai, Makoto*; Sataka, Masao; Kawatsura, Kiyoshi*; Takahiro, Katsumi*; Komaki, Kenichiro*; Shibata, Hiromi*; Sugai, Hiroyuki; Nishio, Katsuhisa
Nuclear Instruments and Methods in Physics Research B, 230(1-4), p.63 - 67, 2005/04
Times Cited Count：8 Percentile：52.8(Instruments & Instrumentation)no abstracts in English
Matsunami, Noriaki*; Fukuoka, Osamu*; Shimura, Tetsuo*; Sataka, Masao; Okayasu, Satoru
Nuclear Instruments and Methods in Physics Research B, 230(1-4), p.507 - 511, 2005/04
Times Cited Count：14 Percentile：67.9(Instruments & Instrumentation)no abstracts in English
H and 
C induced in concrete shielding of an electron accelerator facilityEndo, Akira; Harada, Yasunori; Kawasaki, Katsuya; Kikuchi, Masamitsu
Applied Radiation and Isotopes, 60(6), p.955 - 958, 2004/06
Times Cited Count：7 Percentile：45.06(Chemistry, Inorganic & Nuclear)no abstracts in English
Minehara, Eisuke; *
Proc. of 11th Symp. on Accelerator Sci. and Technol., P. 119, 1997/00
no abstracts in English
Endo, Akira; J.Henshaw*; M.A.Mignanelli*
Radioisotopes, 45(7), p.431 - 434, 1996/07
no abstracts in English
Endo, Akira; J.Henshaw*; M.A.Mignanelli*
AEAT-0058, 0, 45 Pages, 1996/00
no abstracts in English
Arai, Hidehiko
Hoshasen To Sangyo, 0(69), p.36 - 37, 1996/00
no abstracts in English
Minehara, Eisuke; Sugimoto, Masayoshi; Sawamura, Masaru; Nagai, Ryoji; Kikuzawa, Nobuhiro
Proc. of the 20th Linear Accelerator Meeting in Japan, 0, p.66 - 68, 1995/00
no abstracts in English
; Sakamoto, Yukio; Tanaka, Shunichi; ; Fukahori, Tokio; ; Sasamoto, Nobuo; Tanaka, Susumu; Nakamura, Takashi*; Shin, Kazuo*; et al.
JAERI-Data/Code 94-012, 90 Pages, 1994/09
JAERI-Data-Code-94-012.pdf:2.26MB
no abstracts in English
Minehara, Eisuke
Genshiryoku Niokeru Saishin No Doko, 0, p.4.1 - 4.9, 1993/00
no abstracts in English
Minehara, Eisuke; Nagai, Ryoji; Sawamura, Masaru; Takao, Masaru*; *; Sugimoto, Masayoshi; Sasaki, Shigemi; Okubo, Makio; *; Suzuki, Yasuo; et al.
Proc. of the 5th Japan-China Joint Symp. on Accelerators for Nuclear Science and Their Applications, p.104 - 108, 1993/00
no abstracts in English
Sasamoto, Nobuo; *
JAERI-M 90-229, 61 Pages, 1991/01
no abstracts in English
Sasamoto, Nobuo
JAERI-M 90-095, 16 Pages, 1990/06
no abstracts in English
and XeF ion beams for the tandem electrostatic accelerators; Abe, Shinichi; ; ; ; ; Hanashima, Susumu
Nuclear Instruments and Methods in Physics Research B, 5, p.217 - 220, 1984/00
Times Cited Count：4 Percentile：59.6(Instruments & Instrumentation)no abstracts in English
*; Kawatsura, Kiyoshi; P.Richard*
Physical Review A, 26(1), p.154 - 161, 1982/00
Times Cited Count：27 Percentile：82.25(Optics)no abstracts in English
and F
ions in collisions with a He gas targetKawatsura, Kiyoshi; *; P.Richard*
IEEE Transactions on Nuclear Science, NS-28(2), p.1053 - 1055, 1981/00
no abstracts in English
; Abe, Shinichi
Nuclear Instruments and Methods, 190, p.215 - 216, 1981/00
no abstracts in English
