Integrated neutron-gamma radiation detector with adaptively selected gamma threshold
一种伽马阈值、伽马辐射的技术,应用在辐射的测量、辐射强度测量、X /γ/宇宙辐射测量等方向,能够解决妨碍检测和测量等问题
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[0014] Referring now to FIG. 1 , an integrated neutron-gamma radiation detector is shown generally at 10 . At one end, the detector 10 includes a neutron moderator 12 comprising a material that slows fast neutrons entering the moderator 12 but allows thermal neutrons and gamma rays to pass easily therethrough. For example, neutron moderator 12 may include hydrogen or the like. The speed reducer 12 includes a cavity 14 lined with a light reflector 16 . Gamma sensing element 18 is disposed within cavity 14 of neutron moderator 12 and is surrounded by light reflector 16 to increase the light efficiency of detector 10 . In one embodiment, the gamma sensing element 18 includes a scintillator crystal that emits photons with a decay time τ when a gamma ray collides with the gamma sensing element 18 . Typical materials for scintillator crystals include, but are not limited to, those from the class of lanthanum halides (LaBr 3 , LaCl 3 , LaI 3 ) crystalline materials with high ene...
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