Effects of nonuniformities in soil samples that are gamma-ray counted in Marinelli beakers
This study was initiated to investigate several discrepancies in measured activities encountered from time to time in the gamma-ray counting in Marinelli-beaker soil standards and quality control cross-check samples. Frequently a soil sample is counted on several germanium detectors as part of an intra- or inter-laboratory quality-assurance program. Occasionally the results do not agree and detector calibration and counting statistics are apparently not causing the disagreements. Also, in a few cases the counting efficiency changes with time and the variation is not the same for all gamma-ray energies. Most analysts would agree that results such as these imply nonuniformity in the radionuclide distribution in the sample.
- OSTI ID:
- 229670
- Journal Information:
- Radioactivity and Radiochemistry, Vol. 3, Issue 2; Other Information: PBD: 1992
- Country of Publication:
- United States
- Language:
- English
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