Method of and apparatus for determining the proportion of at lea

Details Method of and apparatus for determining the proportion of at lea Method of and apparatus for determining the proportion of at lea

1978-05-31

1981-06-23

Smith, Alfred E.

Radiant energy

Geological testing or irradiation

With sampling

250359, 250367, 250253, G01V 500, G01N 2300, G01T 120

Patent

active

042752981

ABSTRACT:
The proportion of a radioactive material in a moving mass of material is determined with a sensor which derives an output signal proportional to the mass of radioactive material. The output signal is calibrated against known reference values to give a quantitative value of mass. The sensor includes a plurality of scintillation crystals. Problems associated with inhomogeneity of material distribution are overcome by averaging the sensed radiation over a time period.

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patent: 3732420 (1973-05-01), Brunnett et al.
patent: 3882309 (1975-05-01), Paap
patent: 3898463 (1975-08-01), Noakes
patent: 4064440 (1977-12-01), Roder
patent: 4118623 (1978-10-01), Fertl et al.
patent: 4158773 (1979-06-01), Novak

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