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Title: Calibration of the RLS HPGe spectral gamma ray logging system

Abstract

Gamma-ray spectral data have been recorded with the Radionuclide Logging System (RLS) high purity germanium (HPGe) system at (1) the American Petroleum Institute (API) spectral gamma-ray calibration center in Houston, Texas; (2) the US Department of Energy (DOE) spectral gamma-ray field calibration facility in Spokane, Washington; and (3) the DOE spectral gamma-ray primary calibration center in Grand Junction, Colorado. Analyses of the Grand Junction data yielded: calibration constants for the natural gamma-ray sources (potassium, uranium and thorium), energy-dependent borehole diameter corrections for the aid-filled borehole, energy-dependent borehole casing corrections for steel casing over a range of thicknesses from 0 to 79 cm (5/16 in.), a casing index function that varies with casing thickness and provides a method for verifying that the correct casing correction is applied, and an energy-dependent inverse function that is the basis for assessment of subsurface concentrations of man-made gamma-ray emitters such as cesium-137 and cobalt-60.

Authors:
; ; ;
Publication Date:
Research Org.:
Westinghouse Hanford Co., Richland, WA (United States)
Sponsoring Org.:
USDOE; USDOE, Washington, DC (United States)
OSTI Identifier:
5832160
Report Number(s):
WHC-EP-0464
ON: DE92006494
DOE Contract Number:  
AC06-87RL10930
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION; 12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; 58 GEOSCIENCES; BOREHOLES; GAMMA LOGGING; GAMMA SPECTROMETERS; CALIBRATION; NATURAL RADIOACTIVITY; RADIOISOTOPES; WELL CASINGS; CAVITIES; ISOTOPES; MEASURING INSTRUMENTS; RADIOACTIVITY; RADIOACTIVITY LOGGING; SPECTROMETERS; WELL LOGGING; 440400* - Well Logging Instrumentation; 052000 - Nuclear Fuels- Waste Management; 580000 - Geosciences

Citation Formats

Koizumi, C J, Brodeur, J R, Ulbricht, W H, and Price, R K. Calibration of the RLS HPGe spectral gamma ray logging system. United States: N. p., 1991. Web.
Koizumi, C J, Brodeur, J R, Ulbricht, W H, & Price, R K. Calibration of the RLS HPGe spectral gamma ray logging system. United States.
Koizumi, C J, Brodeur, J R, Ulbricht, W H, and Price, R K. 1991. "Calibration of the RLS HPGe spectral gamma ray logging system". United States.
@article{osti_5832160,
title = {Calibration of the RLS HPGe spectral gamma ray logging system},
author = {Koizumi, C J and Brodeur, J R and Ulbricht, W H and Price, R K},
abstractNote = {Gamma-ray spectral data have been recorded with the Radionuclide Logging System (RLS) high purity germanium (HPGe) system at (1) the American Petroleum Institute (API) spectral gamma-ray calibration center in Houston, Texas; (2) the US Department of Energy (DOE) spectral gamma-ray field calibration facility in Spokane, Washington; and (3) the DOE spectral gamma-ray primary calibration center in Grand Junction, Colorado. Analyses of the Grand Junction data yielded: calibration constants for the natural gamma-ray sources (potassium, uranium and thorium), energy-dependent borehole diameter corrections for the aid-filled borehole, energy-dependent borehole casing corrections for steel casing over a range of thicknesses from 0 to 79 cm (5/16 in.), a casing index function that varies with casing thickness and provides a method for verifying that the correct casing correction is applied, and an energy-dependent inverse function that is the basis for assessment of subsurface concentrations of man-made gamma-ray emitters such as cesium-137 and cobalt-60.},
doi = {},
url = {https://www.osti.gov/biblio/5832160}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Nov 01 00:00:00 EST 1991},
month = {Fri Nov 01 00:00:00 EST 1991}
}

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