Journal
JOURNAL OF ENVIRONMENTAL RADIOACTIVITY
Volume 102, Issue 3, Pages 270-282Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.jenvrad.2010.12.001
Keywords
Gamma spectrometry; Scintillation detector; In situ measurements; Calibration; Monte Carlo simulations
Categories
Funding
- Netherlands Organization for Scientific Research
Ask authors/readers for more resources
The calibration of scintillation detectors for gamma radiation in a well characterized setup can be transferred to other geometries using Monte Carlo simulations to account for the differences between the calibration and the other geometry. In this study a calibration facility was used that is constructed from bricks of well-known activity concentrations of K-40 and of radionuclides from the U-238- and Th-232-series. Transfer of the calibration was attempted to a Marinelli beaker geometry with the detector inside a lead shield and to an in situ application with the detector positioned on a sand bed. In general this resulted in good correspondence (within 5-10%) between the activity concentrations derived using the transferred calibration and activities that were derived by independent measurements. Some discrepancies were identified that were attributed to coincident summing in the natural decay series and interference of radon. (C) 2010 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available