| アイテムタイプ |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2024-07-04 |
| タイトル |
|
|
タイトル |
Progress of gamma ray irradiation experiments on ITER diagnostics from JADA |
|
言語 |
en |
| 言語 |
|
|
言語 |
eng |
| 資源タイプ |
|
|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
|
資源タイプ |
journal article |
| 著者 |
Kitazawa Sin-iti
Yatsuka Eiichi
Ishikawa Masao
Ushiki Tomohiko
Oikawa Toshihiro
Ogawa Hiroaki
Imazawa Ryota
Nojiri Kunpei
Kikuchi Takanori
Yokozuka Tomohiro
Murakami Hidetoshi
Shimizu Kosuke
Sugie Tatsuo
Kazuhiro Torimoto
Inamine Moriyoshi
Kono Shigehiro
Nunoya Yoshihiko
|
| 抄録 |
|
|
内容記述タイプ |
Abstract |
|
内容記述 |
The Japan domestic agency (JADA) is responsible for procuring five diagnostic systems for ITER: the microfission chamber (MFC), poloidal polarimeter (PoPola), edge Thomson scattering (ETS), divertor impurity monitor (DIM), and divertor infrared thermography (IRTh) systems. Components of these systems that will be installed in high radiation zones must undergo radiation resistance tests to ensure reliability. The JADA diagnostic group has been conducting gamma ray irradiation experiments on diagnostic components at QST since 2018. The MFC is a neutron diagnostic system that uses uranium fission chambers, the mineral-insulated cables of which were evaluated for corrosion resistance. In-situ observations of the MFC preamplifier have been launched. The PoPola provides the plasma current profile by detecting the polarizations of far-infrared laser beams at their inlets and outlets. Irradiation tests confirmed the durability of PoPola piezo actuators. The ETS is a laser-aided diagnostic to measure electron temperature and density in plasmas from scattered spectra. Laser-induced damages to the optical elements caused by irradiation were investigated. The DIM is a spectroscopic system having a wavelength range of 200 nm to 1000 nm. The effects of irradiation on optical devices, metal mirrors, and radiation-resistant optical fibers were investigated. The IRTh is an infrared thermography system to observe the surface temperature of the divertor. The optical elements and electrical devices of the IRTh have undergone irradiation experiments. The progress of the gamma ray irradiation experiments on the ITER diagnostic systems from JADA are reported. |
| 書誌情報 |
Plasma and Fusion Research
巻 18,
p. 2405014,
発行日 2023-03
|
| 出版者 |
|
|
出版者 |
The Japan Society of Plasma Science and Nuclear Fusion Research |
| ISSN |
|
|
収録物識別子タイプ |
ISSN |
|
収録物識別子 |
1880-6821 |
| DOI |
|
|
|
識別子タイプ |
DOI |
|
|
関連識別子 |
10.1585/pfr.18.2405014 |
