An improved in vivo neutron activation system for measuring kidney cadmium
| Autor: | David R. Chettle, C. Scott, R Armstrong, D. M. Franklin |
|---|---|
| Rok vydání: | 1990 |
| Předmět: |
inorganic chemicals
Detection limit Cadmium Materials science Radiological and Ultrasound Technology business.industry Radiochemistry chemistry.chemical_element Half-life Equipment Design Neutron Activation Analysis Kidney chemistry In vivo Evaluation Studies as Topic Humans Radiology Nuclear Medicine and imaging Neutron Beryllium Neutron activation analysis Nuclear medicine business Neutron activation |
| Zdroj: | Physics in medicine and biology. 35(10) |
| ISSN: | 0031-9155 |
| Popis: | An in vivo neutron activation system for measuring kidney cadmium has been redesigned, firstly to reduce ambient dose levels and, secondly, to improve the cadmium signal to neutron dose ratio by modifying the neutron spectrum from 238Pu/Be, by interposing a beryllium premoderator. The ambient dose was reduced by a factor of seven. The overall system performance (lower limit of detection for a given dose) was improved by 40-50%. This 238Pu/Be based system now performs as well as or better than analogous 252Cf systems, without the drawback of the relatively short half life of 252Cf. |
| Databáze: | OpenAIRE |
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