The signal detection device, the signal detection system and the radiation picture signal detection system, integral signal detection manner, and the radiation picture signal

摘要

PPROBLEM TO BE SOLVED: To provide a signal detecting apparatus capable of detecting the possibility of saturation of an output of a signal tracking/holding circuit for executing correlated double sampling, thereby ensuring linearity without widening the dynamic range of a signal tracking/holding circuit and the dynamic range of a difference amplifier and without saturating the output. PSOLUTION: The signal detecting apparatus controls the timings of a reference tracking/holding circuit 31 and a signal tracking/holding circuit 32 to detect the presence or absence of residual output due to the residual component of a charge signal i. When it is detected that the residual output is present, the apparatus prolongs a reset period of an integral amplifier 33 in response to the level of the detected residual output. PCOPYRIGHT: (C)2009,JPO&INPIT