AI Article Synopsis
- - The study compares the old and new lung counters at Japan's National Institutes for Quantum Sciences and Technology, noting the new counter has a ~15% smaller sensitive area in its detector crystals.
- - Minimum detectable activities (MDAs) for the radioactive isotopes 241Am and 239Pu were measured using a torso phantom, revealing similar detection capabilities for both counters despite the differences in design.
- - For a chest wall thickness of 2.1 cm and a counting time of 30 minutes, the MDAs were slightly lower for the new counter compared to the old one, and it provided improved measurement geometry for left-side versus right-side detection.
Article Abstract
This study compares the performance of old and new lung counters in the National Institutes for Quantum Sciences and Technology of Japan. The total sensitive area of the detector crystals for the new lung counter is ~15% smaller than that for the old lung counter. Minimum detectable activities (MDAs) for 241Am and 239Pu were evaluated through experiments using a Lawrence Livermore National Laboratory torso phantom. Despite differences in detector configuration, the MDAs were found to be comparable between the two lung counters. For a chest wall thickness of 2.1 cm and a counting time of 30 min, the MDAs of 241Am and 239Pu were 5.7 and 2300 Bq for the old lung counter, and 5.5 and 2600 Bq for the new lung counter, respectively. Experimental results for the relative sensitivities between left-side and right-side detectors suggested that the new lung counter offered better measurement geometry.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1093/rpd/ncae183 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!