Scintillation detectors in gamma spectral logging; geometry, absorption and calibration
Open-File Report
80-688
By: Ulrich Schimschal
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Abstract
The theory for the evaluation of the effects of geometry in gamma ray absorption is developed for cylindrical scintillation detectors as applicable to borehole gamma spectrometry. The results of a laboratory experiment are shown for comparison. A calibration procedure to determine detector efficiency is given for application to borehole probes. It is shown that the response of a crystal can be separated in terms of geometric effects and instrumentation effects. It is also shown that approximating crystal detectors with point detectors in mathematical theory is grossly oversimplified. (USGS)
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Scintillation detectors in gamma spectral logging; geometry, absorption and calibration |
| Series title | Open-File Report |
| Series number | 80-688 |
| DOI | 10.3133/ofr80688 |
| Edition | - |
| Year Published | 1980 |
| Language | ENGLISH |
| Publisher | U.S. Geological Survey, |
| Description | 33 p. ill. ;28 cm. |
| Google Analytic Metrics | Metrics page |