公开(公告)号：US3586860A

公开(公告)日：1971-06-22

申请号：US3586860D

申请日：1969-04-04

Applicant: SAAB SCANIA AB

Inventor： BORJESSON SOREN BORJE EDHARD ,  NYDEN ROLF GOSTA ,  OHLSSON STIG ARNE

IPC: H05G1/30 ,  G03B41/16

CPC classification number: H05G1/30

Abstract: Plural transducer elements, comprising a single transducer, are associated with an X-ray tube to produce an output which varies with average intensity of X-ray radiation. The transducer element outputs are summed, averaged and amplified, and are corrected for factors common to both radioscopy and photography, then fed, through a selector switch, either to a dose velocity controlling device which maintains radiation intensity at a desired level for radioscopy, or to an exposure controlling device which times photographic exposures.