Calibrator for radioactivity well logging tools

Details Calibrator for radioactivity well logging tools Calibrator for radioactivity well logging tools

1976-10-28

1978-10-10

Borchelt, Archie R.

Radiant energy

Calibration or standardization methods

250493, G01D 1800

Patent

active

041198476

ABSTRACT:
A radioactivity well logging tool including a gamma radiation detector is field calibrated with the help of a flexible sheet having a radioactive substance dispersed therein, which is wrapped about the tool so as to completely surround the detector. The sheet is made of an elastomer such as polyurethane, and the radioactive substance is carnotite. This sheet is placed within a nylon sheath which has straps for holding the calibrator wrapped around the tool.

REFERENCES:
patent: 2829636 (1958-04-01), Henschke
patent: 3435215 (1969-03-01), Pritchett
patent: 3567943 (1971-03-01), Wallhausen et al.

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