Study of gamma detection capabilities of the REWARD mobile spectroscopic system
| Autor: | S. Kuehn, Michael Fiederle, M. Dambacher, J.P. Balbuena, Ulrich Parzefall, Márcia Baptista, S. Barros, C. Disch |
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| Rok vydání: | 2017 |
| Předmět: |
Physics
Nuclear and High Energy Physics Physics::Instrumentation and Detectors 010308 nuclear & particles physics business.industry Astrophysics::High Energy Astrophysical Phenomena Monte Carlo method Detector Gamma ray 02 engineering and technology Radiation 021001 nanoscience & nanotechnology 01 natural sciences Particle detector 0103 physical sciences Electromagnetic shielding Electronic engineering Optoelectronics Neutron detection 0210 nano-technology business Instrumentation Energy (signal processing) |
| Zdroj: | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 859:1-7 |
| ISSN: | 0168-9002 |
| DOI: | 10.1016/j.nima.2017.03.056 |
| Popis: | REWARD is a novel mobile spectroscopic radiation detector system for Homeland Security applications. The system integrates gamma and neutron detection equipped with wireless communication. A comprehensive simulation study on its gamma detection capabilities in different radioactive scenarios is presented in this work. The gamma detection unit consists of a precise energy resolution system based on two stacked (Cd,Zn)Te sensors working in coincidence sum mode. The volume of each of these CZT sensors is 1 cm3. The investigated energy windows used to determine the detection capabilities of the detector correspond to the gamma emissions from 137Cs and 60Co radioactive sources (662 keV and 1173/1333 keV respectively). Monte Carlo and Technology Computer-Aided Design (TCAD) simulations are combined to determine its sensing capabilities for different radiation sources and estimate the limits of detection of the sensing unit as a function of source activity for several shielding materials. |
| Databáze: | OpenAIRE |
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