TY - JOUR
T1 - Ion-induced gamma-ray detection of fast ions escaping from fusion plasmas
AU - Nishiura, M.
AU - Doi, K.
AU - Taniike, A.
AU - Matsuki, T.
AU - Shimazoe, K.
AU - Mushiake, T.
AU - Yoshino, M.
AU - Nagasaka, T.
AU - Fujimoto, Y.
AU - Fujioka, K.
AU - Tanaka, T.
AU - Kisaki, M.
AU - Yamaoka, H.
AU - Matsumoto, Y.
AU - Wada, M.
PY - 2014/11
Y1 - 2014/11
N2 - A 12 × 12 pixel detector has been developed and used in a laboratory experiment for lost fast-ion diagnostics. With gamma rays in the MeV range originating from nuclear reactions 9Be(α, nγ) 12C, 9Be(d, nγ)12C, and 12C(d, pγ)13C, a high purity germanium (HPGe) detector measured a fine-energy-resolved spectrum of gamma rays. The HPGe detector enables the survey of background-gamma rays and Doppler-shifted photo peak shapes. In the experiments, the pixel detector produces a gamma-ray image reconstructed from the energy spectrum obtained from total photon counts of irradiation passing through the detector's lead collimator. From gamma-ray image, diagnostics are able to produce an analysis of the fast ion loss onto the first wall in principle.
AB - A 12 × 12 pixel detector has been developed and used in a laboratory experiment for lost fast-ion diagnostics. With gamma rays in the MeV range originating from nuclear reactions 9Be(α, nγ) 12C, 9Be(d, nγ)12C, and 12C(d, pγ)13C, a high purity germanium (HPGe) detector measured a fine-energy-resolved spectrum of gamma rays. The HPGe detector enables the survey of background-gamma rays and Doppler-shifted photo peak shapes. In the experiments, the pixel detector produces a gamma-ray image reconstructed from the energy spectrum obtained from total photon counts of irradiation passing through the detector's lead collimator. From gamma-ray image, diagnostics are able to produce an analysis of the fast ion loss onto the first wall in principle.
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U2 - 10.1063/1.4886764
DO - 10.1063/1.4886764
M3 - Article
AN - SCOPUS:84904278568
SN - 0034-6748
VL - 85
JO - Review of Scientific Instruments
JF - Review of Scientific Instruments
IS - 11
M1 - 11E804
ER -