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19 pairs of ~6Li and ~7Li glass were placed in multi-shells respectively,and a polyethylene sphere was divided into.The pairs detect thermal neutrons in different positions of the sphere,which function likes a multi-sphere neutron spectrometer to moderator neutrons with different
19 pairs of ~ 6Li and ~ 7Li glass were placed in multi-shells respectively, and a polyethylene sphere was divided into. The pairs detect thermal neutrons in different positions of the sphere, which function likes a multi-sphere neutron spectrometer to moderator neutrons with different