Patent ID: 9668331
Date: 2017-05-30
CPC Classifications: A61B,H04N,H05G

Claim:
1. An X-ray exposure control device which is used in an X-ray image detection apparatus to detect an X-ray image of a radiography target exposed to X-ray radiation from an X-ray source and which controls an accumulated dose of the X-ray radiation received by the radiography target, the X-ray exposure control device comprising: an X-ray detection element including a plurality of pixels for dose detection each detecting a dose during the X-ray radiation; a region setting unit configured to set a use pixel region including pixels for use in dose detection from the plurality of pixels for dose detection during the X-ray radiation; a signal generating unit configured to generate a stop signal for stopping the X-ray radiation from the X-ray source according to the dose detected by each of the pixels for use in the dose detection within the use pixel region set by the region setting unit; and a transmission unit configured to transmit to the X-ray source the stop signal to stop the X-ray radiation as generated by the signal generating unit.