RADIATION INTENSIFYING SCREEN

PROBLEM TO BE SOLVED: To improve graininess via a simple monolayer fluorescent substance structure allowing easy fabrication and having a small number of control factors, under the restraint of a drop in sensitivity or sharpness. SOLUTION: A fluorescent substance layer 2 is laid on a support body 1....

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Bibliographic Details
Main Authors SAITO AKIHISA, TAKAHARA TAKESHI, KOYAIZU EIJI
Format Patent
LanguageEnglish
Published 03.02.1998
Edition6
Subjects
GAMMA RAY OR X-RAY MICROSCOPES
IRRADIATION DEVICES
MEASUREMENT OF NUCLEAR OR X-RADIATION
MEASURING
NUCLEAR ENGINEERING
NUCLEAR PHYSICS
PHYSICS
TECHNIQUES FOR HANDLING PARTICLES OR IONISING RADIATION NOTOTHERWISE PROVIDED FOR
TESTING
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Summary:PROBLEM TO BE SOLVED: To improve graininess via a simple monolayer fluorescent substance structure allowing easy fabrication and having a small number of control factors, under the restraint of a drop in sensitivity or sharpness. SOLUTION: A fluorescent substance layer 2 is laid on a support body 1. Thereafter, a powder layer 3 formed out of approximately spherical grains having a mean grain size between 0.1 and 2μm, for example, inorganic compound grains such as approximately spherical silica, alumina, zinc sulfide, yttrium oxide, gadolinium oxide, and further formed to have thickness between 1 and 5μm, is laid on the fluorescent substance layer 2. Also, a protective film 4 is laid on the powder layer 3 and a radiation intensifying screen 5 is thereby formed.
Bibliography:Application Number: JP19960184535