Radiant energy – Invisible radiation responsive nonelectric signalling – Optical change type
Patent
1992-11-10
1994-06-07
Hannaher, Constantine
Radiant energy
Invisible radiation responsive nonelectric signalling
Optical change type
2504721, 2504731, 360127, G01T 100
Patent
active
053192109
ABSTRACT:
A dosimetry method, dosimeter and system characterized by the steps of storing information in a three dimensional optical memory element, then exposing the optical memory element to neutron or other high LET radiation to alter the information stored in the optical memory element as a function of the radiation to which the optical memory element is exposed, and then retrieving the altered information from the optical memory element for subsequent analysis. The altered information is used to provide a measure of both the radiation dose and energy. In a preferred embodiment, the optical memory device is a 3-D ORAM comprising a volume of a transparent polymer doped with a light sensitive chemical and, in particular, spirobenzopyran.
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Georgetown University
Hannaher Constantine
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