发明申请
- 专利标题: Three-dimensional radiation position detector and method of identifying sensed positions therein
- 专利标题(中): 三维辐射位置检测器和识别其中感测位置的方法
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申请号: US13636936申请日: 2010-03-29
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公开(公告)号: US20130056638A1公开(公告)日: 2013-03-07
- 发明人: Naoko Inadama , Hideo Murayama , Taiga Yamaya , Mitsuo Watanabe , Takahiro Moriya , Kenshi Fukumitsu , Tomohide Omura
- 申请人: Naoko Inadama , Hideo Murayama , Taiga Yamaya , Mitsuo Watanabe , Takahiro Moriya , Kenshi Fukumitsu , Tomohide Omura
- 申请人地址: JP Hamamatsu-shi, Shizuoka JP Chiba-shi, Chiba
- 专利权人: HAMAMATSU PHOTONICS K.K.,NATIONAL INSTITUTE OF RADIOLOGICAL SCIENCES
- 当前专利权人: HAMAMATSU PHOTONICS K.K.,NATIONAL INSTITUTE OF RADIOLOGICAL SCIENCES
- 当前专利权人地址: JP Hamamatsu-shi, Shizuoka JP Chiba-shi, Chiba
- 国际申请: PCT/JP2010/055588 WO 20100329
- 主分类号: G01T1/164
- IPC分类号: G01T1/164
摘要:
A three-dimensional position-sensitive radiation detector is provided which has a three-dimensional array of photodetectors disposed on the surface of a scintillator block and which is capable of three-dimensionally identifying the position of light emission at which radiation has been detected within the detector. The three-dimensional position-sensitive radiation detector includes: a scintillator block including a central portion which restricts the direction of diffusion of light so as to direct the light in three axial directions and which has an optically discontinuous region, and an outer portion which is disposed on the outside of the central portion and which does not restrict the direction of diffusion of light; and photodetectors disposed on at least two outer circumferential surfaces of the scintillator block. The detector identifies three-dimensionally the position of light emission, thereby preventing deterioration in position discrimination performance even when inner scintillator elements are smaller than the photodetectors.