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Improved Data Acquisition Methods for Uninterrupted Signal Monitoring and Ultra-Fast Plasma Diagnostics in LHD
http://hdl.handle.net/10655/8925
http://hdl.handle.net/10655/8925973d5940-ad37-466f-8554-6288289b7cf9
名前 / ファイル | ライセンス | アクション |
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pfr2012_07-2405007.pdf (2.6 MB)
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Item type | 学術雑誌論文 / Journal Article_02(1) | |||||
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公開日 | 2012-07-23 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Improved Data Acquisition Methods for Uninterrupted Signal Monitoring and Ultra-Fast Plasma Diagnostics in LHD | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | real-time data acquisition (RT-DAQ) | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | variable subshot | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | environmental radiation monitoring | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | device soundness | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | LABCOM system | |||||
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 |
NAKANISHI, Hideya
× NAKANISHI, Hideya× IMAZU, Setsuo× OHSUNA, Masaki× KOJIMA, Mamoru× NONOMURA, Miki× SHOJI, Mamoru× EMOTO, Masahiko× YOSHIDA, Masanobu× IWATA, Chie× MIYAKE, Hitoshi× NAGAYAMA, Yoshio× KAWAHATA, Kazuo |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | To deal with endless data streams acquired in LHD steady-state experiments, the LHD data acquisition system was designed with a simple concept that divides a long pulse into a consecutive series of 10-s “subshots”. Latest digitizers applying high-speed PCI-Express technology, however, output nonstop gigabyte per second data streams whose subshot intervals would be extremely long if 10-s rule was applied. These digitizers need shorter subshot intervals, less than 10-s long. In contrast, steady-state fusion plants need uninterrupted monitoring of the environment and device soundness. They adopt longer subshot lengths of either 10 min or 1 day. To cope with both uninterrupted monitoring and ultra-fast diagnostics, the ability to vary the subshot length according to the type of operation is required. In this study, a design modification that enables variable subshot lengths was implemented and its practical effectiveness in LHD was verified. | |||||
内容記述 | ||||||
内容記述タイプ | Other | |||||
内容記述 | ? 2012 The Japan Society of Plasma Science and Nuclear Fusion Research | |||||
書誌情報 |
en : Plasma and Fusion Research 巻 Vol. 7, p. 2405007-1 - 2405007-4, 発行日 2012-02-01 |
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出版者 | ||||||
出版者 | プラズマ・核融合学会 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1585/pfr.7.2405007 |