| 摘要 |
PROBLEM TO BE SOLVED: To reduce the number of installed photodetectors while having a large area of thin detecting face. SOLUTION: A band-like body comprising a plurality of scintillator fibers arrayed in parallel is provided with sheet-like bodies formed foldedly once or plurality of times not to be overlapped in at least one part, the photodetectors connected to a terminal end of the band-like body, and a sheet-like light reflecting material provided overlappedly on the sheet-like body. COPYRIGHT: (C)2007,JPO&INPIT
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