Radiography system and radiation source controller

摘要

A source controller unit for controlling an x-ray source is provided with a detection signal interface for receiving detection signals from detective pixels of an electronic cassette or an integrated value of the detection signals only, or an interface for receiving a radiation stopping signal only. The source controller unit receives other radiation signals than the radiation stopping signal, such as a radiation admitting signal, through a radiation signal interface. The source controller unit uses the detection signals, the integrated value thereof, or the radiation stopping signal as exposure control signals for stopping radiation from the x-ray source. Since the exposure control signals are received on the specific interface therefor, the source controller unit does not need signal sorting operation nor receive different kinds of signals at the same time, improving the speed of radiation stopping procedure.

主权项

1. A radiography system comprising:
a radiation source for projecting radioactive rays toward a subject; a source controller unit for controlling activation of the radiation source; and a radiographic image detector for detecting a radiograph of the subject from radioactive rays penetrating the subject and being incident on an imaging plane of a detection panel, to output image data of the radiograph, wherein the radiographic image detector has a sensor for detecting the incident amount of radioactive rays and outputs exposure control signals to the source controller unit in order to stop radiation from the radiation source when an integrated amount of the radioactive rays reaches a predetermined threshold the radiographic image detector having the sensor on the detection panel, wherein the source controller unit comprises: a first signal interface for receiving directly from the radiographic image detector the exposure control signals only; a second signal interface for receiving other signals than the exposure control signals, the other signals being outputted from the radiographic image detector; and further comprising a console, provided separately from the source controller unit, for processing the radiograph detected by the radiographic image detector.