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Response measurement of a Bonner sphere spectrometer for high-energy neutrons

Masuda, Akihiko*; Matsumoto, Tetsuro*; Harano, Hideki*; Nishiyama, Jun*; Iwamoto, Yosuke  ; Hagiwara, Masayuki*; Satoh, Daiki  ; Iwase, Hiroshi*; Yashima, Hiroshi*; Nakamura, Takashi*; Sato, Tatsuhiko  ; Itoga, Toshiro*; Nakane, Yoshihiro ; Nakashima, Hiroshi; Sakamoto, Yukio; Theis, C.*; Feldbaumer, E.*; Jaegerhofer, L.*; Pioch, C.*; Mares, V.*; Tamii, Atsushi*; Hatanaka, Kichiji*

In this study, responses of Bonner sphere spectrometer (BSS) for 245 and 388 MeV neutrons was measured at RCNP, Osaka University. The neutrons are generated in the $$^{7}$$Li(p,n) reaction and its spectra consist of a high-energy peak and a continuum down to the low energy. Therefore, the observed counts of BSS caused by the continuum need to be subtracted. Adjusting a Li target angle and a collimator position, 0 deg and 30 deg component of generated neutron are available. While the 0 deg component contains both the peak and the continuum, the 30 deg component is considered to contain only the continuum. Therefore, the response of the peak is obtained. The spectra were measured using the time-of-flight (TOF) method with a NE213 scintillator.

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Category:Engineering, Electrical & Electronic

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