AI Article Synopsis
- The paper explores an attenuation model for estimating the depth of buried radioactive waste using a Cadmium Zinc Telluride (CZT) detector, achieving deeper detection compared to previous methods.
- The CZT detector was able to detect a 329-kBq Cs-137 source up to 18 cm deep in sand, despite a lower average count rate (14 cps) compared to the earlier system (100 cps) that could only detect down to 12 cm.
- Additionally, the model proved effective for estimating the depth of a 9-kBq Co-60 source and suggests that this method can be applied to various radionuclides, along with a performance evaluation parameter for radiation detection systems.
Article Abstract
This paper presents the results of an attenuation model for remote depth estimation of buried radioactive wastes using a Cadmium Zinc Telluride (CZT) detector. Previous research using an organic liquid scintillator detector system showed that the model is able to estimate the depth of a 329-kBq Cs-137 radioactive source buried up to 12 cm in sand with an average count rate of 100 cps. The results presented in this paper showed that the use of the CZT detector extended the maximum detectable depth of the same radioactive source to 18 cm in sand with a significantly lower average count rate of 14 cps. Furthermore, the model also successfully estimated the depth of a 9-kBq Co-60 source buried up to 3 cm in sand. This confirms that this remote depth estimation method can be used with other radionuclides and wastes with very low activity. Finally, the paper proposes a performance parameter for evaluating radiation detection systems that implement this remote depth estimation method.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5982516 | PMC |
| http://dx.doi.org/10.3390/s18051612 | DOI Listing |
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