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KMID : 1151820070010010045
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Journal of the Korean Society of Radiology
2007 Volume.1 No. 1 p.45 ~ p.49
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Measurement of Neutron Capture Gamma-ray Spectrum of Natural Gold in the keV Energy Region
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Lee Jae-Hong
Lee Sam-Yol
Lee Sang-Bock
Lee Jun-Haeng
Jin Gye-Hwan
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Abstract
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keV-neutron capture gamma-ray spectrum of 197Au(natural gold) sample have been measured in neutron energy range from 10 to 90 keV using the 3-MV pelletron accelerator of the Research Laboratory for Nuclear Reactors at the Tokyo Institute of Technology. Pulsed keV neutrons were produced from the 7 Li(p,n)7Be reaction by bombarding on the 7
Li target with the 1.5-ns bunched proton beam. The incident neutron spectrum on the Au sample was measured by a 6
Li-glass scintillation detector and TOF method. Capture gamma-rays from Au sample were measured by anti-Compton NaI(TI) spectrometer. Five average neutron energy regions were selected to obtain the neutron capture spectrum. Several gamma-ray peaks in the spectrum were found in the present experiment.
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KEYWORD
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197Au, neutron, capture gamma ray, time-of-flight(TOF), spectrum, anti-Compton NaI(TI) spectrometer
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