Development and performance evaluation of HPGe detector-based shadow shield bed whole body counter
نویسندگان
چکیده
منابع مشابه
Design, Construction and Performance Evaluation of a HPGe Detector Shield
A multilayer passive shield composed of low-activity lead (Pb), copper (Cu), tin (Sn) and iron (Fe) was designed and manufactured for a coaxial HPGe detector placed at a surface laboratory for reducing background radiation and radiation dose to the personnel. The performance of the shield was evaluated and efficiency curves of the detector were plotted by using of various standard sources in di...
متن کاملDesign and Setup of a New HPGe Detector Based Body Counter Capable of Detecting Also Low Energy Photon Emitters
Germanium detectors allow for an accurate detection of complex contamination cases involving multiple nuclides, but they are available in smaller sizes than scintillators and therefore require careful optimisation of the counting configuration. This work describes the complete redesign of the partialbody and whole-body counter installed at IVM (KIT, Karlsruhe) and the first results of its appli...
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...
متن کاملEvaluation of Detection Characteristics for Scanning-Type Whole-Body Counter
As an alternative to the phantom used for calibrating whole-body counters, in this study the Monte Carlo simulation was used to evaluate peak efficiencies for a whole-body counter installed at the JNC, to examine the validity of using the simulation technique to calibrate the whole-body counter. Prior to simulating a phantom, the sensitive region of the crystal in the Ge detectors which are use...
متن کاملMathematical Calibration of a Whole-Body Counter
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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ژورنال
عنوان ژورنال: Radiation Protection and Environment
سال: 2016
ISSN: 0972-0464
DOI: 10.4103/0972-0464.190394