Detector for radioactivity

Abstract

Abstract PURPOSE: To detect the radioactivity of great area efficiently with low cost, by using the spread angle light collector made of transparent body to allow light collection to a narrow range. CONSTITUTION: The radioactivity detector 1 consists of the radioactivity-photo conversion medium(scintillator)2 converting the radioactivity into light, wide angle light collector 3 collecting the light emitted from the full surface of the scintillator 2 into a narrow range, reflection mirror 4 reflecting the light emitted from the scintillator 2 outside of the light collector 3 and bending it to the light collector 3, light pipe 5 going an arbitrary direction to the light from the light collector 3, and photo electron tube 6 converting the light into an electric signal. By replacing the type of material of film used for the scintillator 2, it can be used to any of α, β, and γ rays. With this constitution, the measurement of a single radioactivity of great area can be measured as the distribution flat in the entire measuring range. COPYRIGHT: (C)1980,JPO&Japio

Inventors

• 👤 Shigeru Ando

Bibliographic Details