| 摘要 |
PROBLEM TO BE SOLVED: To improve imaging performance of an imaging system.SOLUTION: An imaging detector includes processing electronics 208 with a thermal coefficient about equal to a negative of a summation of thermal coefficients of a photosensor array (204) and a scintillator array (202) of the detector. In another instance, the imaging detector includes: an A/D converter (302) that alternately converts first charge corresponding to impinging radiation into a first signal and converts second charge corresponding to decaying charge into a second signal; and a logic operation unit (308) that corrects the first signal on the basis of the second signal. In another instance, the imaging detector includes an A/D converter (302), an integrator offset voltage signal determiner (318), and a logic operation unit (308). The determiner (318) induces an electrical current via an offset voltage, the A/D converter (302) measures the current and the logic operation unit (308) calculates a resistance of the photosensor array (204) on the basis of the reference voltage and the measured current. |
