Scanning radiographic system and equalization detector therefor

The system comprises an x-ray source (12), a collimator and attenuator (16) an equalization detector (30) and a control circuit (40) which controls the collimater (16) in dependence on the detector (30). The equalization detector (30) detects the intensity of x-rays received via a patient (24) in va...

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Bibliographische Detailangaben
Hauptverfasser:	KEYES, GARY SYLVESTER, MCDANIEL, DAVID LEO, MCFAUL, JAMES AUGUSTIN
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BASIC ELECTRIC ELEMENTS DIAGNOSIS ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY GAMMA RAY OR X-RAY MICROSCOPES HUMAN NECESSITIES HYGIENE IDENTIFICATION IRRADIATION DEVICES MEASUREMENT OF NUCLEAR OR X-RADIATION MEASURING MEDICAL OR VETERINARY SCIENCE NUCLEAR ENGINEERING NUCLEAR PHYSICS PHYSICS SURGERY TECHNIQUES FOR HANDLING PARTICLES OR IONISING RADIATION NOTOTHERWISE PROVIDED FOR TESTING X-RAY TECHNIQUE
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Beschreibung
Zusammenfassung:	The system comprises an x-ray source (12), a collimator and attenuator (16) an equalization detector (30) and a control circuit (40) which controls the collimater (16) in dependence on the detector (30). The equalization detector (30) detects the intensity of x-rays received via a patient (24) in various zones in the detector (30) and controls the collimator (16) so as to compress the dynamic range of the received x-rays into a range compatible with an image detector (34) such as a photographic film.