Design consideration for high-energy-resolution neutron spectrometer based on associated particle detection using proton recoil telescope and time-of-flight technique for ITER

Journal Article · Sun Oct 15 04:00:00 EDT 2006 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.2221691· OSTI ID:20861240

Naoi, N; Asai, K; Iguchi, T; Watanabe, K; Kawarabayashi, J; Nishitani, T ^[1]

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1. Quantum Engineering, Nagoya University, Furo-chou, Chikusa-ku, Nagoya, Aichi 464-8603 (Japan)

For ion temperature measurement in the ITER high power operation phase, we propose a promising high-energy-resolution neutron spectrometer based on the associated particle detection using a proton recoil telescope and a time-of-flight spectrometer. To verify the operational principle and the basic performance of this system, we have set up a prototype system through Monte Carlo simulations and carried out a preliminary experiment with a deuterium-tritium (DT) neutron beam at the Fusion Neutronics Source, JAEA. The results have demonstrated that the energy resolution could be achieved around 3.3% (in full width at half maximum) for DT neutrons. In addition, the design consideration of this system for an application to ITER is given on the detection efficiency, the applicable range in the ITER operation, and the detector lifetime.

• OSTI ID: 20861240
• Journal Information: Review of Scientific Instruments, Journal Name: Review of Scientific Instruments Journal Issue: 10 Vol. 77; ISSN 0034-6748; ISSN RSINAK
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
COMPUTERIZED SIMULATION
DESIGN
DETECTION
DEUTERIUM
ELECTRON TEMPERATURE
ENERGY RESOLUTION
ION TEMPERATURE
ITER TOKAMAK
MONTE CARLO METHOD
NEUTRON BEAMS
NEUTRON SPECTROMETERS
NEUTRONS
PROTONS
TELESCOPES
TIME-OF-FLIGHT METHOD
TIME-OF-FLIGHT SPECTROMETERS
TRITIUM