发明授权
- 专利标题: High resolution high output microchannel based radiation sensor
- 专利标题(中): 高分辨率高输出微通道辐射传感器
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申请号: US09688662申请日: 2000-10-16
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公开(公告)号: US06534772B1公开(公告)日: 2003-03-18
- 发明人: Vishal Chhabra , Rameshwar Nath Bhargava , Dennis Gallagher , Samuel P. Herko , Bharati S. Kulkarni , Nikhil R. Taskar , Aleksey Yekimov
- 申请人: Vishal Chhabra , Rameshwar Nath Bhargava , Dennis Gallagher , Samuel P. Herko , Bharati S. Kulkarni , Nikhil R. Taskar , Aleksey Yekimov
- 主分类号: G01T120
- IPC分类号: G01T120
摘要:
A microchannel phosphor screen for converting radiation, such as X-rays, into visible light. The screen includes a planar surface, which can be formed from glass, silicon or metal, which has etched therein a multiplicity of closely spaced microchannels having diameters of the order of 40 microns or less. Deposited within each of the microchannels is a multiplicity of phosphors which emit light when acted upon by radiation. The dimensions of the microchannel and the phosphors and the relationship between the microchannels and the phosphors is optimized so that the light output compares favorably with lower resolution non microchannel based scintillation screens. A photomultiplier can be integrated with the X-ray detector so as to provide an enhanced output for use with low level X-ray of for cine or fluoroscopy applications.