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A ray-trace-type counter telescope for neutron spectrometry

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9 Author(s)
Wakabayashi, G. ; Graduate Sch. of Eng. Sci., Kyushu Univ., Fukuoka, Japan ; Kitano, T. ; Yanagawa, H. ; Aoki, S.
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A compact recoil-proton counter telescope with two position sensitive proportional counters (PSPCs) for neutron spectrometry has been developed. This counter telescope consists of a radiator (a thin polyethylene film), two PSPCs used as ΔE detector, and an Si-SSD used as E detector. Using the position information extracted from two PSPCs, the three-dimensional trajectory of the recoil proton and the recoil angle can be determined event by event. The performance of this counter telescope was tested by measurement of 7.2-MeV neutrons produced from D-D reactions. It was shown that the energy spectra of neutrons could be obtained by determining the energy of each incident neutron using a recoil angle

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Nuclear Science, IEEE Transactions on  (Volume:48 ,  Issue: 3 )