Radioactive substance detection device, radiation source location visibility system, and radioactive substance detection method

摘要

A radioactive substance detection device that detects a radioactive substance being present in a specified direction. A radiation detection element having a thickness that stops and detects a characteristic X-ray arriving from a radioactive substance being present in the specified direction that radiates both gamma rays and the characteristic X-rays, and allows the gamma ray arriving from the radioactive substance to pass through. A screening body having a thickness that screens out characteristic X-rays of radiation which arrives from directions other than the specified direction and allows gamma rays of radiation which arrives from directions other than the specified direction to pass through.

主权项

1. A radioactive substance detection device that detects a radioactive substance being present in a specified direction, the radioactive substance detection device comprising:
a radiation detection element having a thickness and an incident surface perpendicular to the thickness,
wherein the radiation detection element stops and detects characteristic X-rays arriving at the incident surface from the radioactive substance that radiates both gamma rays and the characteristic X-rays, andthe radiation detection element allows the gamma rays arriving at the incident surface from the radioactive substance to pass through the radiation detection element; and a screening body having a thickness, wherein the screening body covers at least a portion of the radiation detection element so that the screening body screens out characteristic X-rays of radiation which arrive from directions other than the specified direction,
wherein the screening body allows gamma rays of radiation which arrive from directions other than the specified direction to pass through the screening body.