Radiant energy – Invisible radiant energy responsive electric signalling – With heating of luminophors
Patent
1978-11-03
1980-09-02
Smith, Alfred E.
Radiant energy
Invisible radiant energy responsive electric signalling
With heating of luminophors
250484, G01T 111, H05B 3300
Patent
active
042208564
ABSTRACT:
A method for the qualitative and quantitative analysis of asbestiform minerals, including the steps of subjecting a sample to be analyzed to the thermoluminescent analysis, annealing the sample, subjecting the sample to ionizing radiation, and subjecting the sample to a second thermoluminescent analysis. Glow curves are derived from the two thermoluminescent analyses and their shapes then compared to established glow curves of known asbestiform minerals to identify the type of asbestiform in the sample. Also, during at least one of the analyses, the thermoluminescent response for each sample is integrated during a linear heating period of the analysis in order to derive the total thermoluminescence per milligram of sample. This total is a measure of the quantity of asbestiform in the sample and may also be used to identify the source of the sample.
REFERENCES:
patent: 3020238 (1962-02-01), Munakata
patent: 3388252 (1968-06-01), Medlin
patent: 3600579 (1971-08-01), Carpentier et al.
patent: 3769510 (1973-10-01), Kotera et al.
patent: 3963439 (1976-06-01), Birks et al.
patent: 3975637 (1976-08-01), Ikedo et al.
Ruud et al., "Selected Area Electron Diffraction and Energy Dispersive X-ray Analysis for the Identification of Asbestos Fibers, a comparison," Micron, vol. 7, pp. 115-132, 1976.
Distler et al., "Thermoluminescence of Asbestos," USDOE Technical Report No. UCRL-51422, Fiscal Year 1973 Summary Report for the USAEC Division of Applied Technology-Environmental Analysis, Lawrence Livermore Lab., Univ. Calif., pp. 5-7, Jul. 5, 1973.
Bradley Edward W.
Fisher Gerald L.
Clouse, Jr. Clifton E.
Denny James E.
Gaither Roger S.
Howell Janice A.
Smith Alfred E.
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