Radiation image detector
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United States of America Patent
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Apr 30, 2013
Grant Date -
Jun 7, 2012
app pub date -
Nov 30, 2011
filing date -
Dec 1, 2010
priority date (Note) -
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Abstract
A FPD includes a signal processing circuit and noise detecting elements provided for each group containing plural columns of pixels. The signal processing circuit converts signal charges accumulated in the pixels into electric signals and outputs the electric signals. Each of the noise detecting elements has the same structure as that of the pixel, but does not have a function of accumulating the electric charges. A voltage signal of the noise detecting element represents noise components. A subtractor subtracts the voltage signal of the noise detecting elements from a voltage signal of the pixels which is outputted from the noise processing circuit.
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