Response behavior of an imaging plate to α, β, and γ rays

Abstract

  Photostimulated luminescence (PSL) of an imaging plate (BAS-UR, Fuji Film Co.) is measured using a home made readout instrument. The PSL of the plate is compared for a unit dose of three kinds of radiation; α, β, and γ -rays. It is shown that the response for a unit absorbed dose of γ -rays is larger than that of α and β -rays. Measurements are also extended to a fading characteristic of the plate and the result reveals that fading curves are composed of two (fast and slow) components irrespective of radiation sources used for the primary excitation.