Skip to main content
U.S. flag

An official website of the United States government

In situ calibration of a high-resolution gamma-ray borehole sonde for assaying uranium-bearing sandstone deposits

January 1, 1985

A method is presented for assaying radioactive sandstone deposits in situ by using a high-resolution borehole gamma-ray spectrometer. Gamma-ray photopeaks from the same spectrum acquired to analyze a sample are used to characterize gamma-ray attenuation properties, from which a calibration function is determined. Assay results are independent of differences between properties of field samples and those of laboratory or test-hole standards generally used to calibrate a borehole sonde. This assaying technique is also independent of the state of radioactive disequilibrium that usually exists in nature among members of the natural-decay chains. ?? 1985.

Publication Year 1985
Title In situ calibration of a high-resolution gamma-ray borehole sonde for assaying uranium-bearing sandstone deposits
DOI 10.1016/0168-9002(85)90830-7
Authors J.H. Day
Publication Type Article
Publication Subtype Journal Article
Series Title Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Index ID 70013200
Record Source USGS Publications Warehouse