发明名称 |
System and method for conditioning a radiation detector |
摘要 |
A system and method for conditioning a photoconductive radiation detector achieve charge redistribution within a photoconductive layer without the need for charge removal or charge injection techniques. A first conditioning voltage is applied across the detector to establish a first electric field. The first electric field is reversed relative to fields applied to the detector during image exposure and image read-out operations. While the first conditioning voltage is maintained, the photoconductive layer is exposed for a period of time to first conditioning radiation having one or more wavelengths selected to penetrate at least a portion of the photoconductive layer. A second conditioning voltage, less than the first conditioning voltage, then can be optionally applied across the detector to establish a forward bias electric field. While the second conditioning voltage is maintained, the photoconductive layer is exposed for a period of time to second, broad spectrum conditioning radiation. The detector can then be placed in a dark environment for a period of time, in a shorted condition, to dark-adapt the photoconductive layer.
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申请公布号 |
US5510626(A) |
申请公布日期 |
1996.04.23 |
申请号 |
US19940263800 |
申请日期 |
1994.06.22 |
申请人 |
MINNESOTA MINING AND MANUFACTURING COMPANY |
发明人 |
NELSON, OWEN L.;EDWARDS, JATHAN D.;COOK, EARL L.;ARIMILLI, PADMANABHAM A. |
分类号 |
G01T1/24;G01T1/29;G03G21/08;H01L27/14;H01L31/09;H04N5/32;(IPC1-7):G01N23/04 |
主分类号 |
G01T1/24 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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