A directional neutron detector based on a recoil proton telescope for neutron emission profile monitor

Details A directional neutron detector based on a recoil proton telescope for neutron emission profile monitor A directional neutron detector based on a recoil proton telescope for neutron emission profile monitor

Feb 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997nimpa.385..157k&link_type=abstract

Nuclear Instruments and Methods in Physics Research Section A, v. 385, p. 157-160.

Physics

4

Scientific paper

A directional neutron detector based on a recoil proton telescope was investigated by experimental approach. The detector showed a directionality not only for 14-MeV neutrons but also for fission and 2.4-MeV neutrons. Due to a good rise-time pulse-shape discrimination capability of a CsI(TI) scintillator, a recoil proton energy spectrum was clearly observed in high gamma-ray background. At a detector angle of 21° with respect to the neutron incident direction, the counts corresponding to the high energy neutron became a half of those at 0°. A major source for reducing the signal-to-noise ratio was identified to be the energetic protons via the (n, p) reaction in the CsI(TI) scintillator.

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