出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：The Canadian high-energy neutron spectrometry system (CHENSS) has been constructed in order
to accurately characterize the fluence and energy distribution of high-energy neutrons encountered
on space missions in low-Earth orbit. The CHENSS is a proton-recoil spectrometer based on a
cylindrical gelled scintillator, with pulse-shape discrimination properties comparable to those of a
liquid scintillator, completely surrounded by thin plastic panels which can be used to veto coincident
events due to charged particles. The CHENSS has been irradiated by monoenergetic neutron
beams, with energies up to 19 MeV, at the Physikalisch-Technische Bundesanstalt. Comparison
of the data with fluence determinations performed in parallel to the CHENSS measurements
shows good consistency and demonstrates the efficacy of the spectrometer for measurements in
space.
