Low cost scintillator module for tomography appts. - has primary flow and return pipework forming structural frame which can be two or three-dimensional

摘要

A scintillator module for an appts. for tomography by X or gamma rays is composed of a series of scintillators formed side by side on a support transparent to the incident rays. The interface of two consecutive elementary scintillators presents a barrier opposing the lateral diffusion of light from one elementary scintillator to the other. A method of making the scintillator module includes: prepn. of a support in e.g. aluminium to the dimensions of a module; hollowing a series of parallel grooves on one of the faces of the support defining bands on the latter; evapn. under vacuum of a scintillator material pref. caesium iodide on the face of the support which carries the grooves. The invention reduces the costs of prodn. of these scintillator modules, and increases the definition of the images which can be obtd.