Neutron and gamma-ray moisture assay

Details Neutron and gamma-ray moisture assay Neutron and gamma-ray moisture assay

1986-12-29

1989-11-28

Fields, Carolyn E.

X-ray or gamma ray systems or devices

Specific application

Absorption

378 53, 25039005, G01N 2306, G01N 2309

Patent

active

048842885

ABSTRACT:
A method and apparatus is disclosed for determining the moisture content of a substance irradiated by a fast neutron and gamma ray source wherein a fast neutron moderator is positioned in the path of the fast neutrons and gamm rays transmitted through the substance. A unitary thick Li glass or LiI glass detector is positioned behind or surrounded by the fast neutron moderator and detects both slow neutrons and gamma rays. Simplified counting circuitry utilizing a single channel analyser determines the intensities of the detected slow neutrons and gamma rays enabling the moisture content of the substance.

REFERENCES:
Knoll, Glen F., Radiation Detection and Measurement, John Wiley & Sons, New York, 1979, pp. 554-556.
English Translation of Japanese Patent 60-186737.

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