Detection of subsurface air flow

Details Detection of subsurface air flow Detection of subsurface air flow

1977-06-22

1978-12-12

Willis, Davis L.

Radiant energy

Geological testing or irradiation

G01V 500

Patent

active

041297768

ABSTRACT:
A method and apparatus are described for determining the occurrence or non-occurrence of subsurface air flow and, in the event of the occurrence of subsurface air flow, being able to determine its direction into or out of the earth. The determinations are accomplished by the use of a pair of alpha particle detectors, each of which is disposed in a protective enclosure to constitute a detector unit. A pair of such units is employed, the two units being buried in the earth spaced from each other and at different depths. Readings detecting alpha particle emission are taken on both units and compared.

REFERENCES:
patent: 3665194 (1972-05-01), Alter et al.
patent: 4017731 (1977-04-01), Howell et al.
patent: 4064436 (1977-12-01), Ward

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