Counting 241Am in the BfS Human Skull Phantom on Contact—Evaluation in the Human Monitoring Laboratory
| Autor: | Maria Antonia Lopez, Kevin Capello, Gary H. Kramer, Pedro Alves Nogueira, Chunsheng Li, Barry M. Hauck |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
Physics
Americium Phantoms Imaging Epidemiology business.industry Health Toxicology and Mutagenesis Skull Counting efficiency Detector Imaging phantom Human skull medicine.anatomical_structure Radiation Monitoring Human monitoring medicine Forehead Humans Radiology Nuclear Medicine and imaging Laboratories Nuclear medicine business Biomedical engineering |
| Zdroj: | Health Physics. 108:380-382 |
| ISSN: | 0017-9078 |
| DOI: | 10.1097/hp.0000000000000180 |
| Popis: | Skull counting can be used to assess the activity of radionuclides internally deposited in the bone. The Human Monitoring Laboratory (HML) at Health Canada conducted the measurement of 241Am in the BfS (Bundesamt für Strahlenschuts) skull phantom on contact with the skull for various positions. By placing the detector in contact, the HML can improve the counting efficiency by over 20% compared to placing the detector 1 cm above the surface of the skull. Among all the positions tested, the forehead position is the preferred counting geometry due to the design of HML's counting facility and the comfort it would provide to the individual being counted, although this counting position did not offer the highest counting efficiency for the gamma rays (either the 59.5 keV or the 26.3 keV) emitted by 241Am. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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