Method and device to calibrate an automatic exposure control device in an x-ray imaging system

摘要: A method and device to calibrate an automatic exposure control (AEC) in x-ray imaging system is disclosed. An has generator tube generate x-rays, AEC of the image sensing system, such as a film/screen combination or digital recording which convert x-rays into converted medium, light, can be easily sensed by medium. To device, detector placed position medium detect The detects signals indicative on Simultaneously, signal obtained from AEC. When corresponds predetermined desired output, output stored. stored value target will produce proper future for same set conditions system. process repeated different sets until all have been calibrated. There preliminary step determine output. This comprises fixing attenuation filter about means, graded attenuations, placing these along with detector. then generates determined comparing caused detected signal.