Radiation does distribution measurement device and radiation irradiation apparatus

Abstract

A radiation dose distribution measurement device of a radiotherapy apparatus capable of rapidly identifying a detection plane of a scintillator, having high precision and high repeatability, and easily expanding the scope of application. The radiation dose distribution measurement device includes a housing, a scintillator module which is removably attached to the housing, and emits fluorescence when radiation is irradiated from the radiation irradiation apparatus, and a camera which is removably attached to the housing, and shoots the fluorescence from the scintillator module. The scintillator module includes a scintillator held between transparent resin plates respectively located on both main faces of the scintillator, each transparent resin plate having a thickness of 1 cm to 10 cm, and markers are respectively formed along four corners of the transparent resin plate located on the side of the camera for identifying a detection plane of the scintillator.

Dependencies are inferred from the claim text.