Liquid scintillation spectrometry process and apparatus

Details Liquid scintillation spectrometry process and apparatus Liquid scintillation spectrometry process and apparatus

1979-09-04

1981-09-29

Smith, Alfred E.

Radiant energy

Automatic/serial detection of similar sources

250364, G01T 100, B01T 120

Patent

active

042925207

ABSTRACT:
The invention relates to a liquid scintillation spectrometry process and apparatus permitting the analysis of samples having a fluorescence efficiency quenching comprising chromatic quenching and chemical quenching. According to the invention, an external standard ionizing radiation source is used which is associated with a collimating means permitting the irradiation of the sample to be restricted to a small area. According to a first variant, two separate measurements are carried out on fluorescence radiations having different optical paths. These two measurements make it possible to determine a coefficient which represents the ratio between the chromatic quenching and the chemical quenching. In a second variant, the irradiation area is selected in such a way that the overall quenching is no longer dependent on this ratio.

REFERENCES:
patent: 3560744 (1971-02-01), Jordan
patent: 4085325 (1978-04-01), Atallah et al.
patent: 4187426 (1980-02-01), Jordan

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