Patent
1985-12-26
1989-01-10
Griffin, Donald A.
350482, G03B 1702, G02B 300
Patent
active
047977019
ABSTRACT:
Apparatus for the remote localization or location of radioactive sources having a pinhole camera, whereof the walls constitute a shield for radioactive radiation, said camera having an opening making it possible to introduce a first film able to detect radioactive radiation emitted by said sources and positioned facing the pinhole, a second film sensitive to visible light at the same location as the first and a plug constituting a shield for the radioactive radiation and used for closing said opening during the operation of the apparatus. Preferably, the pinhole is defined by a double cone. Preferably it constitutes a double diaphragm, a small diaphragm permitting the passage of radioactive radiation and light and a large diaphragm only permitting the passage of radioactive radiation.
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Commissariat a l''Energie Atomique
Griffin Donald A.
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