发明名称 |
Wide dynamic range digital imaging system and method |
摘要 |
A digital x-ray imaging device and method. The imaging device comprises a top electrode layer; a dielectric layer; a sensor layer comprising a photoconductive layer and a plurality of pixels, each pixel comprising a charge-collecting electrode; a thin film transistor (TFT) readout matrix connected to the charge-collecting electrodes; and a variable power supply adapted to provide a range of voltages between the top electrode layer and the TFT readout matrix. The variable power supply may comprise a programmable power supply. The method comprises varying the voltage between the top electrode layer and the TFT readout matrix of a TFT-based direct digital x-ray imaging device to provide an acceptable signal-to-noise ratio over a greater range of exposures than provided at a single voltage. The method may be particularly useful in non-destructive testing applications.
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申请公布号 |
US2002195566(A1) |
申请公布日期 |
2002.12.26 |
申请号 |
US20010884810 |
申请日期 |
2001.06.19 |
申请人 |
RODRICKS BRIAN;HOFFBERG MICHAEL G. |
发明人 |
RODRICKS BRIAN;HOFFBERG MICHAEL G. |
分类号 |
G01T1/00;G01T1/202;G01T1/24;G01T1/29;H01L27/14;H01L27/146;H04N5/32;(IPC1-7):G01T1/24 |
主分类号 |
G01T1/00 |
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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