Radiant energy – Invisible radiant energy responsive electric signalling – With heating of luminophors
Patent
1996-02-08
1997-08-12
Hannaher, Constantine
Radiant energy
Invisible radiant energy responsive electric signalling
With heating of luminophors
G01T 111
Patent
active
056568150
ABSTRACT:
Radiation is detected using a light transparent thermoluminescent dosimeter that comprises a nanocrystalline phosphor dispersed in a light transparent glassy matrix, such as Vycor glass. The dosimeter is placed in an environment in which radiation is present for a period of time, removed from the environment and then heated to emit light, the intensity of which is indicative of the radiation dose. The method of the invention is useful for detecting and recording the dosage of both UV and ionizing radiation. In one embodiment in which the dosimeter is in the form of a flat plate. Ambient .alpha. or .beta. radiation populates traps and, upon heating of the flat dosimeter, the emitted light is guided to the edges of the dosimeter by total internal reflection, where it is detected and recorded.
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Huston Alan L.
Justus Brian L.
Hannaher Constantine
Karasek John
McDonnell Thomas E.
The United States of America as represented by the Secretary of
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