Radiation CT imaging method using the same radiation and CT imaging systems and radiation CT imaging apparatus

摘要

PROBLEM TO BE SOLVED: To provide a radiation computer tomograph capable of imaging at an arbitrary resolution during the imaging, detecting fluctuation in a radiation source during the imaging without using a special detector and performing a correction according to a detected amount.;SOLUTION: Data having a common accumulation time are non-destructively read by changing resolution (without changing noise and the like). The data retained in S/H (sample and hold circuit) have same values in the both of the regular and the non-destructive reading other than the resolution. In a case of regular non-destructive reading, a tomograph is so used as to read a fluctuating signal of PD (photodiode) (monitoring a light exposure and the like) and the like, however, this tomograph uses the data after being accumulated by one-shot exposure. A non-destructive reading means is thus required after the pixel memory (S/H).;COPYRIGHT: (C)2006,JPO&NCIPI