Response function of single crystal synthetic diamond detectors to 1-4 MeV neutrons for spectroscopy of D plasmas

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

DOI:https://doi.org/10.1063/1.4960490· OSTI ID:22596494

Nocente, M.; Rigamonti, D.; Gorini, G. ^[1]; Giacomelli, L.; Tardocchi, M. ^[2]; Milocco, A. ^[1]; Camera, F.; Giaz, A. ^[3]; Cazzaniga, C. ^[2]; Chen, Z. J.; Du, T. F.; Fan, T. S.; Hu, Z. M.; Peng, X. Y. ^[4]; Marchi, T. ^[5]

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1. University of Milano Bicocca, Piazza della Scienza 3, 20126 Milano (Italy)
2. Istituto di Fisica del Plasma “P. Caldirola,” CNR, Milano (Italy)
3. INFN Milano, Via Celoria 16, 20133 Milano (Italy)
4. School of Physics, State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing (China)
5. Department of Physics and Astronomy, Instituut voor Kern- en Stralingsfysica, KU Leuven, Leuven (Belgium)

A Single-crystal Diamond (SD) detector prototype was installed at Joint European Torus (JET) in 2013 and the achieved results have shown its spectroscopic capability of measuring 2.5 MeV neutrons from deuterium plasmas. This paper presents measurements of the SD response function to monoenergetic neutrons, which is a key point for the development of a neutron spectrometer based on SDs and compares them with Monte Carlo simulations. The analysis procedure allows for a good reconstruction of the experimental results. The good pulse height energy resolution (equivalent FWHM of 80 keV at 2.5 MeV), gain stability, insensitivity to magnetic field, and compact size make SDs attractive as compact neutron spectrometers of high flux deuterium plasmas, such as for instance those needed for the ITER neutron camera.

• OSTI ID: 22596494
• Journal Information: Review of Scientific Instruments, Vol. 87, Issue 11; Other Information: (c) 2016 EURATOM; 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
COMPARATIVE EVALUATIONS
COMPUTERIZED SIMULATION
DEUTERIUM
DIAMONDS
ENERGY RESOLUTION
ITER TOKAMAK
JET TOKAMAK
JETS
KEV RANGE 10-100
MAGNETIC FIELDS
MEV RANGE 01-10
MONOCRYSTALS
MONTE CARLO METHOD
NEUTRON CAMERAS
NEUTRON SPECTROMETERS
NEUTRONS
PLASMA
PULSES
RESPONSE FUNCTIONS
SPECTROSCOPY