Invention Grant
US08791514B2 Providing variable cell density and sizes in a radiation detector
有权
在辐射检测器中提供可变细胞密度和尺寸
- Patent Title: Providing variable cell density and sizes in a radiation detector
- Patent Title (中): 在辐射检测器中提供可变细胞密度和尺寸
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Application No.: US13540079Application Date: 2012-07-02
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Publication No.: US08791514B2Publication Date: 2014-07-29
- Inventor: Debora Henseler , Ronald Grazioso , Nan Zhang
- Applicant: Debora Henseler , Ronald Grazioso , Nan Zhang
- Applicant Address: US PA Malvern DE Munich
- Assignee: Siemens Medical Solutions USA, Inc.,Siemens Aktiengesellschaft
- Current Assignee: Siemens Medical Solutions USA, Inc.,Siemens Aktiengesellschaft
- Current Assignee Address: US PA Malvern DE Munich
- Agent Peter Kendall
- Main IPC: H01L27/146
- IPC: H01L27/146 ; G01T1/24
Abstract:
An apparatus and method to decrease light saturation in a photosensor array and increase detection efficiency uses a light distribution profile from a scintillator-photodetector geometry to configure the photosensor array to have a non-uniform sensor cell pattern, with varying cell density and/or varying cell size and shape. A solid-state photosensor such as a SiPM sensor having such a non-uniform cell structure realizes improved energy resolution, higher efficiency and increased signal linearity. In addition the non-uniform sensor cell array can have improved timing resolution due to improvements in statistical fluctuations. A particular embodiment for such photosensors is in PET medical imaging.
Public/Granted literature
- US20130009267A1 Providing Variable Cell Density and Sizes in a Radiation Detector Public/Granted day:2013-01-10
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