100‐kV test of the prototype neutral beam injector for JT‐60

Autor:	Tadayoshi Sugawara, Kiyoshi Shibanuma, Masaaki Kuriyama, Kiyoshi Mizuhashi, Hiroshi Horiike, Hirofumi Shirakata, Shigeru Tanaka, Shinzaburo Matsuda, Kazuhiro Watanabe, Mamoru Matsuoka, Yoshikazu Okumura, Shigeru Kitamura, Mikito Kawai, Yoshiaki Oguchi, Masayuki Dairaku, Masato Akiba, Masanori Araki, Takemasa Shibata, Yoshihiro Ohara, T. Itoh, T. Ohga, Hirotsugu Shigematsu
Rok vydání:	1984
Předmět:	Tokamak Materials science Injector Work related Ion source law.invention Ion Beamline law Physics::Accelerator Physics Atomic physics Instrumentation Beam (structure) Beam divergence
Zdroj:	Review of Scientific Instruments. 55:332-337
ISSN:	1089-7623 0034-6748
DOI:	10.1063/1.1137761
Popis:	A prototype neutral beam injector for JT‐60 has demonstrated extraction of 100‐kV, 70‐A, 10‐s ion beams, delivering neutral beam power of 1.43 MW into the target chamber. The power‐flow measurements showed that all beam line components, including the ion sources, were operated successfully. This verified the validity of the design work related to the ion source and neutral beam cooling devices. No significant change in the beam divergence during the pulse has been observed up to the maximum rated beam extraction of 40 A at 100 kV for 10 s from each ion source. The measurement also indicated that the power distribution to the beam line components agreed well with independently obtained ion species ratio and gas pressure distribution. Efficiencies of 28% and 20% were obtained for the neutralization and neutral injection into the target, respectively, for 100‐kV, 70‐A, 10‐s operation.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::2bc86ed46e66ff2b4deb1e2f06cc606c https://doi.org/10.1063/1.1137761 Zobrazit plný text záznamu