Effects of gamma-ray irradiation on electronic and non-electronic equipment of Large Helical Device

K OGAWA; T NISHITANI; M ISOBE; M SATO; M YOKOTA; H HAYASHI; T KOBUCHI; T NISHIMURA

doi:10.1088/2058-6272/19/2/025601

Plasma Science and Technology > 2017 > 19(2): 25601-025601. > DOI: 10.1088/2058-6272/19/2/025601

K OGAWA, T NISHITANI, M ISOBE, M SATO, M YOKOTA, H HAYASHI, T KOBUCHI, T NISHIMURA. Effects of gamma-ray irradiation on electronic and non-electronic equipment of Large Helical Device[J]. Plasma Science and Technology, 2017, 19(2): 25601-025601. DOI: 10.1088/2058-6272/19/2/025601

Citation:

PDF (507 KB)

Effects of gamma-ray irradiation on electronic and non-electronic equipment of Large Helical Device

1 National Institute for Fusion Science, National Institutes of Natural Sciences, 322-6 Oroshi-cho, Toki 509?5292, Japan 2 SOKENDAI (The Graduate University for Advanced Studies), School of Physical Sciences, 322-6 Oroshi-cho, Toki 509-5292, Japan

Funds: This work is supported partly by the LHD project budget (NIFS15ULHH003 and NIFS15ULGG801).

More Information

Received Date: April 05, 2016

Graphical Abstract

Abstract

Abstract

In a deuterium operation on the Large Helical Device, the measurement and control equipment placed in the torus hall must survive under an environment of radiation. To study the effects of gamma-ray irradiation on the equipment, an irradiation experiment is performed at the Cobalt-60 irradiation facility of Nagoya University. Transient and permanent effects on a personal computer, media converters, programmable logic controllers, isolation ampliers, a web camera, optical flow meters, and water sealing gaskets are experimentally surveyed. Transient noise appears on the web camera. Offset of the signal increases with an increase of the integrated dose on the programmable logic controller. The DeviceNet module on the programmable logic controller is broken at the integrated dose of 72 Gy, which is the expected range of the integrated dose of the torus hall. The other equipment can survive under the gamma-ray field in the torus hall.
- large helical device,
- gamma-ray irradiation,
- radiation effect

FullText(HTML)

References (6)

References

[1]	Nishitani T et al 1998 Fus. Eng. Des. 42 443
[2]	Yamamoto S et al 2000 J. Nucl. Mater. 283-287 60–9
[3]	Osakabe M et al 2015 Current status of the LHD project and its prospect for deuterium experiment 25th Int. Toki Conf. (Toki-city, Japan, 3–6 November)
[4]	Nishitani T et al 2016 Plasma Fus. Res. 11 2405057
[5]	Nagoya University Cobalt 60 irradiation facility (http://co60. nucl.nagoya-u.ac.jp)
[6]	Hanks C L and Hamman D J 1971 ‘Radiation Effects Design Handbook. Section 3, Electrical insulating Materials and Capacitors’, NASA CR-1787-1971 (https://ntrs.nasa.gov/ archive/nasa/casi.ntrs.nasa.gov/19710020300.pdf)

[1]	Weijie HUO, Weiguo HE, Luofeng HAN, Kangwu ZHU, Feng WANG. A study of pulsed high voltage driven hollow-cathode electron beam sources through synchronous optical trigger[J]. Plasma Science and Technology, 2024, 26(5): 055501. DOI: 10.1088/2058-6272/ad113e
[2]	Chunxia LIANG (梁春霞), Ning WANG (王宁), Zhengchao DUAN (段正超), Feng HE (何锋), Jiting OUYANG (欧阳吉庭). Experimental investigations of enhanced glow based on a pulsed hollow-cathode discharge[J]. Plasma Science and Technology, 2019, 21(2): 25401-025401. DOI: 10.1088/2058-6272/aaef49
[3]	He GUO (郭贺), Xiaomei YAO (姚晓妹), Jie LI (李杰), Nan JIANG (姜楠), Yan WU (吴彦). Exploration of a MgO cathode for improving the intensity of pulsed discharge plasma at atmosphere[J]. Plasma Science and Technology, 2018, 20(10): 105404. DOI: 10.1088/2058-6272/aace9e
[4]	Shoujie HE (何寿杰), Peng WANG (王鹏), Jing HA (哈静), Baoming ZHANG (张宝铭), Zhao ZHANG (张钊), Qing LI (李庆). Effects of discharge parameters on the micro-hollow cathode sustained glow discharge[J]. Plasma Science and Technology, 2018, 20(5): 54006-054006. DOI: 10.1088/2058-6272/aab54b
[5]	Mingming SUN (孙明明), Tianping ZHANG (张天平), Xiaodong WEN (温晓东), Weilong GUO (郭伟龙), Jiayao SONG (宋嘉尧). Plasma characteristics in the discharge region of a 20A emission current hollow cathode[J]. Plasma Science and Technology, 2018, 20(2): 25503-025503. DOI: 10.1088/2058-6272/aa8edb
[6]	CHEN Yuqian (陈俞钱), HU Chundong (胡纯栋), XIE Yahong (谢亚红). Analysis of Effects of the Arc Voltage on Arc Discharges in a Cathode Ion Source of Neutral Beam Injector[J]. Plasma Science and Technology, 2016, 18(4): 453-456. DOI: 10.1088/1009-0630/18/4/21
[7]	S. CORNISH, J. KHACHAN. The Use of an Electron Microchannel as a Self-Extracting and Focusing Plasma Cathode Electron Gun[J]. Plasma Science and Technology, 2016, 18(2): 138-142. DOI: 10.1088/1009-0630/18/2/07
[8]	HAN Qing (韩卿), WANG Jing (王敬), ZHANG Lianzhu (张连珠). PIC/MCC Simulation of Radio Frequency Hollow Cathode Discharge in Nitrogen[J]. Plasma Science and Technology, 2016, 18(1): 72-78. DOI: 10.1088/1009-0630/18/1/13
[9]	LI Shichao(李世超), HE Feng(何锋), GUO Qi(郭琦), OUYANG Jiting(欧阳吉庭). Deposition of Diamond-Like Carbon on Inner Surface by Hollow Cathode Discharge[J]. Plasma Science and Technology, 2014, 16(1): 63-67. DOI: 10.1088/1009-0630/16/1/14
[10]	D. FUKUHARA, S. NAMBA, K. KOZUE, T. YAMASAKI, K. TAKIYAMA. Characterization of a Microhollow Cathode Discharge Plasma in Helium or Air with Water Vapor[J]. Plasma Science and Technology, 2013, 15(2): 129-132. DOI: 10.1088/1009-0630/15/2/10