High Energy Particle Measurement using Compact Neutral Particle Energy Analyzer in Large Helical Device
- National Institute for Fusion Science, Oroshi-cho 322-6, Toki 509-5292 (Japan)
- Graduate Univ. for Advanced Studies, Hayama, Kanagawa, 240-0193 (Japan)
The pellet charge exchange technique, which can enhance the charge exchange reaction in plasma core, is utilized. Although there is no fusion reaction in the Large Helical Device (LHD), the simulation experiment can be expected by using the ion cyclotron resonance heated plasma. We newly install CNPA (0.8-168keV, 40 channels) to obtain the high-energy particle spectra in LHD. In pellet experiments, the time resolution of 0.1 ms is equal to 5 cm spatial resolution at the pellet speed of 500 m/s. Pellet penetration depth determines the possible observable area of the energy spectra. In our experiment, the penetration depth (up to {rho}=0.2) can be obtained at 1 mm diameter pellet. The spectra in three different plasmas can be compared.
- OSTI ID:
- 20797942
- Journal Information:
- AIP Conference Proceedings, Vol. 812, Issue 1; Conference: PLASMA 2005: International conference on research and applications of plasmas; 3. German-Polish conference on plasma diagnostics for fusion and applications; 5. French-Polish seminar on thermal plasma in space and laboratory, Opole-Turawa (Poland), 6-9 Sep 2005; Other Information: DOI: 10.1063/1.2168870; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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