Zobrazeno 1 - 10
of 84
pro vyhledávání: '"Masashi, Kisaki"'
Autor:
Yasuaki Haba, Kenichi Nagaoka, Katsuyoshi Tsumori, Masashi Kisaki, Haruhisa Nakano, Katsunori Ikeda, Masaki Osakabe
Publikováno v:
New Journal of Physics, Vol 22, Iss 2, p 023017 (2020)
Negative ion beam focusing is a key element for advanced applications of negative ion beams such as accelerators for particle physics, compact accelerators for medical fields, and plasma experiments for nuclear fusion because complicated magnetic fie
Externí odkaz:
https://doaj.org/article/25e07cca0cbe4e8b9a96d1340c1478a8
Vacuum Insulation in Negative Ion Accelerator with Long Gap and Large Surface for Fusion Application
Autor:
Atsushi, Kojima, Masamichi, Murayama, Masashi, Kisaki, Kazuhiro, Watanabe, Naoki, Shibata, Hiroyuki, Tobari, Masahiro, Ichikawa, Junichi, Hiratsuka, mae quinones Saquilayan, Glynnis, Yuji, Shimabukuro, Mieko, Kashiwagi, Yasushi, Yamano
Publikováno v:
IEEE Transactions on Plasma Science. :420-425
A scaling technique has been developed in order to predict the voltage holding capability of the world-largest electrostatic accelerator for fusion application having a long gap vacuum insulation around 1 m with large surface area of more than 6 m 2
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=jairo_______::c3e6b90a4b86a2f986029a56c4ab4be6
https://repo.qst.go.jp/records/85900
https://repo.qst.go.jp/records/85900
Autor:
Kazunori Takahashi, Tsuyoshi Imagi, Masashi Ishitomi, Kenichi Nagaoka, Yasuaki Haba, Haruhisa Nakano, Akira Ando, Masashi Kisaki, Katsuyoshi Tsumori, Katsunori Ikeda
Publikováno v:
New Journal of Physics, Vol 21, Iss 9, p 093043 (2019)
A radiofrequency oscillation is successfully superimposed on a plasma potential of a filamented source plasma in an ion beam source while maintaining a constant plasma density, in order to investigate effects of oscillating source plasma potential on
Externí odkaz:
https://doaj.org/article/0e0d069c02f74f9cb5a3a0900b877857
Autor:
Glynnis Mae Quinones, SAQUILAYAN, Masamichi, Murayama, Yuji, Shimabukuro, mae quinones Saquilayan, Glynnis, Junichi, Hiratsuka, Masashi, Kisaki, Masahiro, Ichikawa, Atsushi, Kojima, Hiroyuki, Tobari, Mieko, Kashiwagi
ITER NBIでは1MeV, 40Aの負イオンビームを加速する世界最大(3m x 4m)の負イオン加速器が必要であり、このような大型加速器では面積と共に劣化する耐電圧が大きな課題である。従来加速器よ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=jairo_______::147a0214b1ac147be9007b656029deaa
https://repo.qst.go.jp/records/85510
https://repo.qst.go.jp/records/85510
Autor:
Glynnis Mae Quinones, SAQUILAYAN, Masamichi, Murayama, Yuji, Shimabukuro, Junichi, Hiratsuka, Masahiro, Ichikawa, mae quinones Saquilayan, Glynnis, Masashi, Kisaki, Atsushi, Kojima, Hiroyuki, Tobari, Mieko, Kashiwagi
ITERでは真空中に負イオンビーム源を設置するため、ビーム源と真空容器間の長ギャップ真空1MV絶縁が課題である。従来の2次元形状の耐電圧設計を基に、1/5スケールビーム源で耐電圧試
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=jairo_______::2e84701f9eb1db77cbde4f4ab73f0ca0
https://repo.qst.go.jp/records/85511
https://repo.qst.go.jp/records/85511
Autor:
Junichi, Hiratsuka, Kentaro, Tomita, Mieko, Kashiwagi, Atsushi, Kojima, mae quinones Saquilayan, Glynnis, Kaihori, Takeshi, Masahiro, Ichikawa, Masashi, Kisaki, Hiroyuki, Tobari, Kazuhiro, Watanabe
Publikováno v:
Journal of Physics: Conference Series.
As a challenge to measure the extraction surface of the negative ion beam, a laser Thomson scattering system with high spatial resolution was applied to a weakly ionized plasma in a negative ion source for the first time. The first target was to meas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=jairo_______::1f1d87e25de680a64d1e970e7cbf341f
http://id.nii.ac.jp/1657/00084042/
http://id.nii.ac.jp/1657/00084042/
Autor:
Masashi, Kisaki, Atsushi, Kojima, mae quinones Saquilayan, Glynnis, Junichi, Hiratsuka, Masahiro, Ichikawa, Yuji, Shimabukuro, Masamichi, Murayama, Kazuhiro, Watanabe, Hiroyuki, Tobari, Mieko, Kashiwagi
The hollow meniscus shape in the multi-stage MeV-class accelerator for ITER was identified for the first time by the reverse trajectory calculation with the measured emittance. The molten traces due to the power deposition of the negative ion beam, w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=jairo_______::77a308a695718979b767859707d5630e
https://repo.qst.go.jp/records/83791
https://repo.qst.go.jp/records/83791
Autor:
mae quinones Saquilayan, Glynnis, Masashi, Kisaki, Atsushi, Kojima, Junichi, Hiratsuka, Masamichi, Murayama, Yuji, Shimabukuro, Kazuhiro, Watanabe, Hiroyuki, Tobari, Mieko, Kashiwagi
The first emittance measurement of the high power density negative ion beam at target perveance conditions of the ITER accelerator was presented. Previously, the ITER requirement on grid headloads at 2% of the total beam current, which can scrape the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=jairo_______::ed0b569f7350904354585ab30dbcd9d7
https://repo.qst.go.jp/records/85050
https://repo.qst.go.jp/records/85050
Autor:
Masashi, Kisaki, Jelle, Slief
Negative ion sources for fusion are required to generate the stable high-energy and high-current negative ion beam with long pulse duration more than 1000 s. To satisfy these requirements, it is essential to minimize the heat load on accelerators. Th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=jairo_______::08da6634b6dae49dfbb4dd76fc309cee
https://repo.qst.go.jp/records/85183
https://repo.qst.go.jp/records/85183
Autor:
H. Nakano, K. Nagaoka, Masashi Kisaki, Y. Fujiwara, K. Ikeda, M. Osakabe, S. Masaki, E. Rattanawongnara, K. Tsumori
Publikováno v:
SEVENTH INTERNATIONAL SYMPOSIUM ON NEGATIVE IONS, BEAMS AND SOURCES (NIBS 2020).
The extraction mechanism of negative ion beams is affected by the behavior of positive and negative ions near the extraction apertures. Flow of the charged particles in a hydrogen discharge were measured with a newly developed directional photodetach
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1173fad92ef8e217003ecb01a1f2f3e2
https://doi.org/10.1063/5.0058837
https://doi.org/10.1063/5.0058837