Open AccessA high sensitive fission neutron detector system with a lead slot collimator
Author(s) -
Xiaoping Ouyang,
Li Zhen-Fu,
Qunshu Wang,
Huo Yu-Kun,
Ma Yian-Liang,
Qianmei Zhang,
Guoguang Zhang,
Jin Yu-Ren
Publication year - 2005
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.54.4643
Subject(s) - collimator , detector , fission , neutron , neutron detection , fissile material , nuclear physics , physics , neutron emission , scintillator , optics
A fission neutron detector system with frontward-extended lead slot collimator has been developed and tested. By designing the slot collimator and developing large area PIN detectors as well as large area fissionable target with thin Be backing, this detector system can reach high neutron sensitivities up to 10-16C·cm2, which is about 4-5 orders of magnitude higher than that of existing fission detectorsand high n/γ discrimination ratio up to 30.