Indirect measurement of secondary-particle distributions by an Au activation method at the KEK neutrino target station |
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| Authors: | H Matsumura T Miura S Ishihama N Matsuda T Aze K Masumoto T Suzuki |
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| Institution: | (1) High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan;(2) Tokyo Nuclear Services Co., Ltd. (TNS), Tsukuba, Ibaraki 300-2646, Japan;(3) Japan Atomic Energy Research Institute (JAERI), Tokai-mura, Ibaraki 319-1195, Japan;(4) The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan |
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| Abstract: | Gold activation detectors were placed at nine positions on the inner wall of the KEK neutrino target station, and were exposed
to secondary particles during approximately one month of machine operation. After exposure, the production rates of 19 spallation
nuclides, which were produced in the Au activation detectors by nuclear reactions with different threshold energies, were
determined by γ-ray spectrometry. Thus, it was indicated that the Au activation detector is a novel tool for obtaining the
distribution of various secondary particles with high intensity and high energy. |
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