特集 「中性子の線量評価に関わる研究開発」
高エネルギー中性子遮蔽実験研究の現状
2005 年 31 巻 4 号 p. 243-272
詳細
2005 年 31 巻 4 号 p. 243-272
This review paper gives the brief description on the development of new sophisticated high-energy neutron spectrometers, and the high-energy neutron shielding experiments performed using these spectrometers by our group. For neutrons of energies beyond 100 MeV, the self-TOF detector using the NE102A plastic scintillators, large-scale NE213 organic liquid scintillator, and spallation detectors of C and Bi were developed, and two types of multi-moderator spectrometers, high-efficiency type and gamma-ray insensitive type, were developed for use in wide energy range, all by our group.
By using these spectrometers, our group performed the shielding experiments using the following five neutron sources: 1) 25, 35MeVp-Li quasi-monoenergetic neutrons at CYRIC, Tohoku university, 2) 43, 68MeVp-Li quasi-monoenergetic neutrons at TIARA, JAERI, 3) 400MeV/nucleon C ion produced neutrons at HIMAC, NIRS, 4) 800MeV proton produced neutrons at ISIS, RAL, and 5) 28.7GeV electron produced neutrons at FFTB, SLAC.
