Patent ID: 6801598
Filing Date: 2004-10-05
Classification: A61B,G01T,H04N

Abstract:
A radiation sensing apparatus comprising:a sensing unit arranged to sense a subject image to be obtained by irradiating a radiation from a radiation source to a subject, said sensing unit being capable of reading out non-destructively; a detection circuit arranged to detect a start and/or a stop of irradiation of the radiation on a basis of a signal obtained from said sensing unit by the non-destructive read-out; and a drive circuit arranged to control a waiting mode and a signal accumulation mode, wherein in the waiting mode, said drive circuit performs a reset of said sensing unit periodically in the waiting mode, and stops the reset in accordance with detecting the start of the irradiation of the radiation on a basis of the signal obtained by the non-destructive read-out before the reset, and then starts said signal accumulation mode for causing said sensing unit to perform accumulation of a signal to obtain the subject image.