公开(公告)号：US5078951A

公开(公告)日：1992-01-07

申请号：US560959

申请日：1990-08-01

Applicant: Robert A. August, Jr.

Inventor： Robert A. August, Jr.

IPC: G01T3/00

CPC classification number: G01T3/00

Abstract: A high-efficiency apparatus for detecting fast neutrons includes an assembly of disks of solid state charged particle detector material, or other appropriate charged particle detecting devices, disposed between adjacent thick (on the order of 1 mm) disks of fissionable material. The fissionable material must be an isotope that has a sharp increase in the neutron-induced fission cross section at a neutron energy of about 100 keV or greater, i.e., a fast neutron. An array of such assemblies housed in a thermal neutron shielding structure provides a threshold detector for fast neutrons resulting from neutron-induced fission of the fissionable material.

Abstract translation: 用于检测快中子的高效率装置包括固态带电粒子检测器材料盘或其它合适的带电粒子检测装置的组件，其设置在可裂变材料的相邻厚（大约1毫米）圆盘之间。 可裂变材料必须是在约100keV或更大的中子能量即快中子时中子诱导的裂变横截面急剧增加的同位素。 容纳在热中子屏蔽结构中的这种组件的阵列提供了由中子引起的可裂变材料裂变产生的快中子的阈值检测器。