COMPUTERIZED TOMOGRAPHY (CT) DETECTOR ARRAY HAVING NON-PIXEL TYPE SCINTILLATOR ARRAY

摘要

PROBLEM TO BE SOLVED: To provide a scintillator array for a high-resolution CT imaging in which a susceptibility for positioning a photodiode array (52) and/or a collimator assembly (59) is made small. SOLUTION: A non-pixel type scintillator array (56) for a CT detector (10) comprises a plurality of ceramic fibers (88) or a single crystal fiber arranged mutually in parallel. So a dose efficiency of a pack (86) becomes very high. Each fiber is designed so as to make a scatter loss small and to emit light into the photodiode (60). A dimension (diameter of cross section) of the fiber is made finer for a higher-resolution use, so the dimension of the fiber can be made uniform over the whole scintillator array. Respective fibers are aligned mutually in parallel, the scintillator array also becomes uniform as a whole. COPYRIGHT: (C)2005,JPO&NCIPI