gamma-ray probe

gamma-ray probe

[′gam·ə ‚rā ‚prōb]
(engineering)
A gamma-ray counter built into a watertight case small enough to be lowered into a borehole.
References in periodicals archive ?
Bertuzzi P, Bruckler L, Gabilly Y, Gaudu JC (1987) Calibration, field-testing, and error analysis of a gamma-ray probe for in situ measurement of dry bulk density.
The Disequilibrium Factor (DEF), which measures the ratio between the grades of U3O8 recorded using the assay (ppm U3O8), as compared to measurements recorded using a standard gamma-ray probe (ppm eU3O8) is shown in the last column.