RADIATION DETECTOR, AND METHOD FOR PRODUCING THE SAME

摘要

In this radiation detector, a scintillator block (3) and a light guide (5) are optically coupled such that surfaces of side peripheral portions (25) face surfaces of scintillator crystals, among scintillator crystals configuring the scintillator block (3), which are positioned at side edge portions. Accordingly, scintillator light generated at the side edge portions of the scintillator block (3) becomes incident on the side peripheral portions (25) more reliably. As a result, a radiation detector (1) according to the present invention is capable of achieving high resolution in DOI detection. Furthermore, resin curing is used to integrally form the side peripheral portions (25) comprising a plurality of blocks, and thus a complex assembly step during production of the light guide (5) does not need to be performed. Accordingly, production of the light guide (5) is facilitated, and thus low production costs of the radiation detector according to the present invention can be achieved.

主权项

1. A radiation detector comprising:
a scintillator block constituted by block-shaped scintillator crystals arranged three-dimensionally, the scintillator block being configured to detect incident radiation and emit light; a light guide optically coupled to the scintillator block, the light guide being configured to transmit the light emitted from the scintillator; a solid state light detector optically coupled to the light guide, the solid state light detector being configured to convert the light transmitted from the light guide into electrical signals; and a reflector embedded in the light guide, the reflector being configured to reflect light, wherein the light guide is structured so as to be divided into a center portion and side peripheral portions by the reflector, and wherein the light guide and the scintillator block are coupled such that surfaces of the side peripheral portions face surfaces of the scintillator crystals positioned at side edge portions of the scintillator block among the scintillator crystals constituting the scintillator block.