Direct Determination of Radionuclides in the Body Optimisation of Measurements Parameters and Results Analysis
TLDR
Improvements in accuracy can be expected from cooperative works with other techniques: indirect methods (urines and faeces) and passive detectors placed correctly on the body can in the case of high levels of contamination can be used to improve the burden assessment.Abstract:
Whole body counting (WBC) benefits from new types of detectors and methodologies. It has found applications in areas such as in medicine, protection of workers and of population. The design of a WBC facility should be tailored to the type of application. Monte Carlo calculations help to improve the reliability of the calibration of a facility, particularly for non-standard measurements (child, etc.), help in optimizing shielding of counting rooms, preventing large systematic errors and lowering detection limits. In vivo counting may be used to evaluate the distribution of radionuclides in organs for metabolic studies with multiple detectors or with a scan of the body. Reduction of detection levels by background reduction is limited. Improved sensitivity can be obtained by adapting the detector type and size to the measured photon energy. The benefit of comparison exercises and training courses are demonstrated. Further improvements in accuracy can be expected from cooperative works with other techniques: indirect methods (urines and faeces) and passive detectors placed correctly on the body can in the case of high levels of contamination can be used to improve the burden assessment.read more
Citations
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Journal ArticleDOI
Technical recommendations for monitoring individuals for occupational intakes of radionuclides
George Etherington,Philippe Berard,Eric Blanchardon,B. Breustedt,C. M. Castellani,C. Challeton-de Vathaire,Augusto Giussani,D. Franck,M. A. Lopez,J. W. Marsh,D. Nosske +10 more
TL;DR: The aims and purpose of the Technical Recommendations are described, and how the project is organised is explained.
Journal ArticleDOI
MaMP and FeMP: computational mesh phantoms applied for studying the variation of WBC efficiency using a NaI(Tl) detector.
TL;DR: In a previous study, the counting efficiency calibration was calculated for 36 computational mesh phantoms called MaMP and FeMP-Male and Female Mesh Phantoms, which span variations in height, weight and gender, to be used in a sitting configuration WBC set-up using an HPGe detector.
Applicability of pulse shape analysis methods in measurements of low energy gamma rays from human lungs
TL;DR: Pulse shape analysis methods were applied to gamma spectroscopy measurements in an attempt to reduce the contribution from low-energy Compton background events, with focus on measuring inhaled plutonium from human lungs.
References
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Environmental Radioactivity: From Natural, Industrial, and Military Sources
TL;DR: The skis can be carried joined together by the web, joined to a tote bag or the covers can be separated to enable the skis to be carried on a conventional car ski rack or the like.
International commission of radiation units and measurements
TL;DR: ICRU endeavors to collect and evaluate the latest data and information pertinent to the problems of radiation measurement and dosimetry and to recommend the most acceptable numerical values for physical reference data and techniques for current use.
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