Radiant energy – Invisible radiant energy responsive electric signalling – Including a radiant energy responsive gas discharge device
Patent
1980-02-20
1981-12-15
Willis, Davis L.
Radiant energy
Invisible radiant energy responsive electric signalling
Including a radiant energy responsive gas discharge device
G01T 116
Patent
active
043061540
ABSTRACT:
The construction of a direct reading, ionization chamber dosimeter is almost exclusively of thermoplastic material. Except for an electrometer frame and switch contacts, the dosimeter comprises components of injection molded thermoplastic material. The dosimeter barrel and most of the structural components are made from either electrically conducting polycarbonate or non-conducting polycarbonate. Optical parts and lenses are formed from transparent plastic materials. The ionization chamber is made from polypropylene loaded with carbon black. The light-weight plastic construction of the dosimeter renders it relatively insensitive to mechanical shock and causes it to interact with ionizing radiation in a manner substantially similar to animal tissue or human flesh.
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U.S. Atomic Energy Commission, Oak Ridge, Tennessee, Ryerson Pocket Meter, DDC-886, 1947.
Byer John B.
Thompson Burton J.
Williams, Jr. Edward F.
Bellamy Werten F. W.
Gapcynski William G.
Spechler Arthur I.
The United States of America as represented by the Secretary of
Willis Davis L.
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