[19p-A304-1~9] 2.3 Application, radiation generators, new technology

△ [19p-A304-9] Performance of Neutron Spectrometer for Exploration of Near-Earth Asteroids

〇(M2)Junya Ishii¹, Nobuyuki Hasebe^1,2, Hiroshi Nagaoka², Masayuki Naito¹ (1.School Adv. Waseda Univ., 2.Inst. Waseda Univ.)

Keywords:neutron spectrometer, near earth asteriods, hydrogen

In Japan, the exploration of Near-Earth Asteroids (NEAs) is expected by microsatellite. Measurements of neutron emitted from asteroid surface give constraints to their hydrogen abundance and bulk compositions. In this study, we assessed a performance of neutron spectrometer for future NEAs explorations which consists of two type scintillators, 1) lithium glass scintillator which detects thermal neutron and 2) boron loaded plastic scintillator which detects epithermal and fast neutron separately.