Method of improving BeO as a thermoluminescent detector

Details Method of improving BeO as a thermoluminescent detector Method of improving BeO as a thermoluminescent detector

1979-06-26

1980-09-23

Smith, Alfred E.

Radiant energy

Invisible radiant energy responsive electric signalling

With heating of luminophors

307354, G01T 111

Patent

active

042245192

ABSTRACT:
Measurements of radiation exposure below 1 mR are possible with a BeO ceramic thermoluminescent detector (TLD) by treating the TL signal in a manner that discriminates against an interferring pyroelectric incandescence (PI). This is accomplished by differentiating the signals electronically to cause the composite signal to cross the baseline. A zero-crossing detector then senses and clips the negative-going portion of the signal. The resultant signal is integrated, producing a result wherein the true TL signal is substantially greater than the PI signal.

REFERENCES:
patent: 3449593 (1969-06-01), Marino
Kaul et al., "High Sensitivity Apparatus for Low Level TL Detection", Mod Geology, vol. 6, No. 2, Mar. 1977, pp. 87-91.

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