Neutron activation probe

Details Neutron activation probe Neutron activation probe

1979-06-07

1981-07-21

Smith, Alfred E.

Radiant energy

Geological testing or irradiation

Well testing apparatus and methods

250265, 250269, 250502, G01V 500, G21G 402

Patent

active

042800480

ABSTRACT:
A neutron activation probe comprises a pulsed neutron source in series with a plurality of delayed neutron detectors for measuring radioactivity in a well borehole. The neutron source emits neutrons which produce fission in uranium in the ore body and the delayed neutron detectors measure the delayed neutrons produced from such fission while the probe is moved through the borehole. The signal from each neutron detector is delayed in time so that the activity measured by each neutron detector from a particular ore zone may be added thereby increasing the accuracy of the reading corresponding to that ore zone.

REFERENCES:
patent: Re26027 (1966-05-01), Manteuffel
patent: 2284345 (1942-05-01), Schlesman
patent: 2933611 (1960-04-01), Foster
patent: 3296551 (1967-01-01), Staples
patent: 3461291 (1969-08-01), Goodman
patent: 3487211 (1969-12-01), Youmans
patent: 3686503 (1972-08-01), Givens et al.
patent: 3828189 (1974-08-01), Givens
patent: 4122340 (1978-10-01), Smith et al.
patent: 4180728 (1979-12-01), Goldstein

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