Detection of nuclear radiation

Details Detection of nuclear radiation Detection of nuclear radiation

1987-12-17

1989-03-28

Howell, Janice A.

Radiant energy

Invisible radiant energy responsive electric signalling

With heating of luminophors

2504841, 406 88, G01T 1115, G01T 111

Patent

active

048166820

ABSTRACT:
A method of determining the nuclear radiation dosage to which a thermoluminescent crystal, such as a diamond or cubic boron nitride crystal, has previously been subjected, involves the steps of heating the cyrstal up while supporting it against gravity on an upwardly flowing stream of gas. The light which the crystal emits is collected and analyzed to give a radiation dosage measure in accordance with a know relationship between amount of collected light and radiation dosage. The gas stream may be a hot gas stream in which case the hot gas also serves to heat up the crystal. In one embodiment of the invention, the crystal is supported and heated up inside an integrating sphere which collects the emitted light.

REFERENCES:
patent: 3590245 (1971-06-01), Oonishi et al.
patent: 4186838 (1980-02-01), Levitt et al.
patent: 4444531 (1984-04-01), Baker et al.
patent: 4690591 (1987-09-01), Nagashima et al.
patent: 4738748 (1988-04-01), Kisa

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