Neutron-gamma ray combined detection device and method

The invention provides a neutron-gamma ray combined detection device and a neutron-gamma ray combined detection method. The detection device comprises a vacuum cavity shell, a neutron measurement unitand a gamma ray measurement unit, and the detection method obtains a net neutron signal by deducting a gamma signal output by the gamma ray measurement unit from a mixed signal output by the neutronmeasurement unit. According to the invention, combined measurement of neutrons and gamma rays in a neutron and gamma mixed radiation field can be realized, i.e., measurement of neutrons and gamma raysis realized simultaneously by using one detector. 本发明提出一种中子-γ射线联合探测装置及中子-γ射线联合探测方法，所述的探测装置包括真空腔外壳、中子测量单元和γ射线测量单元，本发明的探测方法通过从中子测量单元输出的混合信号中扣除γ射线测量单元输出的γ信号，得到净中子信号。本发明可实现中子、γ混合辐射场中中子和γ射线的联合测量，即利用一个探测器，同时实现中子和γ射线的测量。