Longitudinal monitoring of whole body counter NaI(Tl) detector efficiency
نویسندگان
چکیده
منابع مشابه
Evaluation on the Counting Efficiency of a Chair-type Whole Body Counter for Accident Monitoring of Internal Contamination
Major accidental release of radionuclides has the potential for significant radiation exposure in large populations.[1] Rapid monitoring for internally contaminated people is required in radiation accident. If the release contains radionuclides which emit high energy gamma ray, the most suitable mean of providing this monitoring is Whole Body Counter(WBC).[2] Chair-type WBC is more suitable tha...
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This paper describes the mathematical efficiency calibration of the whole-body counter at Forschungszentrum Jülich using Monte Carlo codes and mathematical anthropomorphic phantoms. As a prerequisite for the Monte Carlo simulations a precise model of the 4 high-purity germanium (HPGe) detectors had to be developed. Because the technical data provided by the manufacturer were not sufficient for ...
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The calibration methods for in vivo measurement systems using Monte Carlo simulations and voxel phantoms have been demonstrated. The calibration data, such as counting efficiency or response function, calculated by the UCWBC code that was developed in the Japan Atomic Energy Research Institute were compared with those measured with an in vivo measurement system. It was found that the calibratio...
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Accidents are always sudden. They happen despite considerable developments in the safety techniques/warning systems, affecting not only the workers directly involved, but also the people around. This is evident from the reported article on the 15th anniversary of the Chernobyl nuclear accident, entitled: “15 years on, Chernobyl survivors relive the nightmare” by Philippe Coumarianos (Times of I...
متن کاملEvaluation of Whole Body Counter at Nagasaki University
A whole body counter was installed at Nagasaki University in 1968. Evaluation of the whole body counter was done by accumulated data during 15 years since its installation. The items used for the evaluation were the background radiation, the resolution and sensitivity of the measurement system. The characteristics of the apparatus has been stable for these years: The background counting rate wa...
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ژورنال
عنوان ژورنال: Applied Radiation and Isotopes
سال: 2017
ISSN: 0969-8043
DOI: 10.1016/j.apradiso.2017.04.011