Progress in development of the neutron profile monitor for the large helical device

Journal Article · Sat Nov 15 00:00:00 EST 2014 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.4890399· OSTI ID:22308635

Kobuchi, T. ^[1]; Isobe, M.; Takeiri, Y. ^[1]; Takada, E.; Uchida, Y. ^[2]; Ochiai, K. ^[3]; Tomita, H.; Uritani, A. ^[4]

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1. National Institute for Fusion Science, Toki 509-5292 (Japan)
2. National Institute of Technology, Toyama College, 13 Hongo-machi, Toyama 939-8630 (Japan)
3. Fusion Research and Development Directorate, Japan Atomic Energy Agency, Tokai, Naka, Ibaraki 319-1195 (Japan)
4. Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603 (Japan)

The neutron profile monitor stably operated at a high-count-rate for deuterium operations in the Large Helical Device has been developed to enhance the research on the fast-ion confinement. It is composed of a multichannel collimator, scintillation-detectors, and a field programmable gate array circuit. The entire neutron detector system was tested using an accelerator-based neutron generator. This system stably acquires the pulse data without any data loss at high-count-rate conditions up to 8 × 10{sup 5} counts per second.

• OSTI ID: 22308635
• Journal Information: Review of Scientific Instruments, Vol. 85, Issue 11; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0034-6748
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
COLLIMATORS
CONFINEMENT
COUNTING RATES
DEUTERIUM
IONS
LHD DEVICE
NEUTRON DETECTORS
NEUTRON GENERATORS
SCINTILLATION COUNTERS