Dosimeter

Details Dosimeter Dosimeter

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.

REFERENCES:
patent: 2634374 (1953-04-01), Shonka
patent: 2638551 (1953-05-01), Landsverk et al.
patent: 2648777 (1953-08-01), Landsverk
patent: 2687480 (1954-08-01), Shonka et al.
patent: 2793297 (1957-05-01), Siebentritt, Jr. et al.
patent: 3628019 (1971-12-01), Jackson
patent: 3663504 (1972-05-01), Sturm et al.
patent: 3993950 (1976-11-01), Piltingsrud
patent: 4019058 (1977-04-01), Kronenberg et al.
U.S. Atomic Energy Commission, Oak Ridge, Tennessee, Ryerson Pocket Meter, DDC-886, 1947.

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