Charge exchange neutral particle measurements with natural diamond detector under the deuterium-deuterium neutron field on JT-60U tokamak
Creators
- 1. Troitsk Institute of Innovating and Fusion Research (TRINITI) Troitsk, Moscow Region 142092 (Russian Federation)
- 2. National Institute for Fusion Science, Toki, Gihu 509-5292 (Japan)
- 3. Tohoku University, Sendai-shi, Miyagi 980-8578 (Japan)
- 4. Japan Atomic Energy Research Institute, Naka-machi, Naka-gun, Ibaraki 319-0193 (Japan)
Description
A natural diamond detector (NDD) has been installed on the JT-60U tokamak to measure the flux and the energy distribution of charge exchange (CX) fast neutral particles. A NDD has many important advantages to be used as a CX neutral particle analyzer, for example very compact size, high energy resolution, and high radiation hardness etc., while the neutrons and γ rays are a large noise source in the deuterium plasma. The shield was set up around the NDD to reduce those noises. Time-resolved energy distribution of CX neutral particles corresponding to injected beam energy have been successfully obtained under high intensity neutron yield Yn>1015 n/s. Further enhanced neutral particle fluxes during sawtooth oscillation and Alfven eigenmodes were observed with the NDD. The performance of the NDD as CX neutral particle spectrometer under high intensity neutron yield was demonstrated for the first time on JT-60U in this work
Additional details
Identifiers
- DOI
- 10.1063/1.1785267;
Publishing Information
- Journal Title
- Review of Scientific Instruments
- Journal Volume
- 75
- Journal Issue
- 10
- Journal Page Range
- p. 3643-3645
- ISSN
- 0034-6748
- CODEN
- RSINAK
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 36080042
- Subject category
- S70: PLASMA PHYSICS AND FUSION TECHNOLOGY; S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Descriptors DEI
- ALFVEN WAVES; CHARGE EXCHANGE; DEUTERIUM; ENERGY RESOLUTION; ENERGY SPECTRA; JT-60U TOKAMAK; NEUTRAL PARTICLE ANALYZERS; NEUTRAL PARTICLES; PLASMA BEAM INJECTION; PLASMA CONFINEMENT; PLASMA DIAGNOSTICS; PLASMA HEATING; PLASMA INSTABILITY; PLASMA WAVES; SAWTOOTH OSCILLATIONS; SEMICONDUCTOR DETECTORS; SEMICONDUCTOR MATERIALS; TIME RESOLUTION
- Descriptors DEC
- BEAM INJECTION; CLOSED PLASMA DEVICES; CONFINEMENT; HEATING; HYDROGEN ISOTOPES; HYDROMAGNETIC WAVES; INSTABILITY; ISOTOPES; LIGHT NUCLEI; MATERIALS; MEASURING INSTRUMENTS; NUCLEI; ODD-ODD NUCLEI; OSCILLATIONS; RADIATION DETECTORS; RESOLUTION; SPECTRA; SPECTROMETERS; STABLE ISOTOPES; THERMONUCLEAR DEVICES; TIMING PROPERTIES; TOKAMAK DEVICES
Optional Information
- Notes
- (c) 2004 American Institute of Physics