Neutron method and apparatus for determining total cross-section

Details Neutron method and apparatus for determining total cross-section Neutron method and apparatus for determining total cross-section

1980-11-05

1983-05-17

Smith, Alfred E.

Radiant energy

Geological testing or irradiation

Well testing apparatus and methods

250269, G01V 500

Patent

active

043842054

ABSTRACT:
A method and an apparatus for quantitatively determining the macroscopic thermal neutron absorption cross-section of a geological formation traversed by a borehole is disclosed. The method comprises the steps of irradiating the formation with neutrons from a continuous source in a neutron sonde and detecting through the use of dual epithermal and thermal detectors the resultant flux of both thermal and epithermal neutrons. Representative signals are then combined in a manner which best takes advantage of the physics of the interaction of neutrons with matter to produce a representation of the macroscopic thermal neutron absorption cross-section. Thus, a signal representing the ratio of the counts is derived from each like pair of detectors. The logarithms of the signals are then taken and combined in a linear combination.

REFERENCES:
patent: 2667583 (1954-01-01), Herzog
patent: 2971094 (1961-02-01), Tittle
patent: 3435217 (1969-03-01), Givens
patent: 3483376 (1969-12-01), Locke et al.
patent: 3566116 (1971-02-01), Nelligan
patent: 3691378 (1972-09-01), Hopkinson et al.
patent: 4004147 (1977-01-01), Allan
patent: 4005290 (1977-01-01), Allan
patent: 4021666 (1977-05-01), Allan
patent: 4095102 (1978-06-01), Tixier
patent: 4251724 (1981-02-01), Vagelatos et al.

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