Signal amplification by illumination of a partially developed latent electrostatic image

Method and apparatus for reducing X-ray dosage required for xeroradiographic examinations without reducing the relative information capacity of the images produced during the examination. In particular, a charged xerographic plate is positioned adjacent the object to be examined and penetrating X-ra...

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Bibliographic Details
Main Author JEROMIN; LOTHAR S
Format Patent
LanguageEnglish
Published 21.10.1975
Subjects
CINEMATOGRAPHY
DIAGNOSIS
ELECTROGRAPHY
ELECTROPHOTOGRAPHY
HOLOGRAPHY
HUMAN NECESSITIES
HYGIENE
IDENTIFICATION
MAGNETOGRAPHY
MEDICAL OR VETERINARY SCIENCE
PHOTOGRAPHY
PHYSICS
SURGERY
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Summary:Method and apparatus for reducing X-ray dosage required for xeroradiographic examinations without reducing the relative information capacity of the images produced during the examination. In particular, a charged xerographic plate is positioned adjacent the object to be examined and penetrating X-ray radiation is projected through the object onto the plate surface, forming a latent electrostatic image on the surface of the plate. The penetrating radiation utilized is of a substantially lower dosage than normally utilized. The image is then partially developed with developing powder and the partially developed image is then exposed to substantially uniform radiation. The exposed image is finally developed by applying additional developing powder thereto resulting in an enhanced image or signal.
Bibliography:Application Number: US19740448128