Faraday-cup-type lost fast ion detector on Heliotron J

Journal Article · Tue Nov 15 00:00:00 EST 2016 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.4960310· OSTI ID:22596538

Kobayashi, S.; Nagasaki, K.; Okada, H.; Minami, T.; Kado, S.; Ohshima, S.; Weir, G. M.; Konoshima, S.; Mizuuchi, T. ^[1]; Ogawa, K.; Isobe, M. ^[2]; Darrow, D. S. ^[3]; Nakamura, Y.; Ohtani, Y. ^[4]; Kemmochi, N. ^[2]

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1. Institute of Advanced Energy, Kyoto University, Gokasho, Uji, Kyoto 611-0011 (Japan)
2. National Institute for Fusion Science, National Institutes of Natural Sciences, 322-6 Oroshi, Toki, Gifu 509-5292 (Japan)
3. Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543 (United States)
4. Graduate School of Energy Science, Kyoto University, Gokasho, Uji, Kyoto 611-0011 (Japan)

A Faraday-cup type lost-fast ion probe (FLIP) has been designed and installed in Heliotron J for the purpose of the studies of interaction between fast ions and MHD instabilities. The FLIP can measure the co-going fast ions whose energy is in the range of 1.7–42.5 keV (proton) and pitch angle of 90{sup ∘}–140{sup ∘}, especially for fast ions having the injection energy of neutral beam injection (NBI). The FLIP successfully measured the re-entering passing ions and trapped lost-fast ions caused by fast-ion-driven energetic particle modes in NBI heated plasmas.

• OSTI ID: 22596538
• Journal Information: Review of Scientific Instruments, Vol. 87, Issue 11; Other Information: (c) 2016 Author(s); 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
BEAM INJECTION
BEAMS
FARADAY CUPS
HELIOTRON
INJECTION
ION PROBES
IONS
KEV RANGE 01-10
MAGNETOHYDRODYNAMICS
PARTICLES
PITCHES
PLASMA
PROTONS
TRAPPING