Document Detail


Monte Carlo simulation of gamma-ray spectra from natural radionuclides recorded by a NaI detector in the marine environment.
MedLine Citation:
PMID:  16150599     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The GEANT4 Monte Carlo code has been used to simulate gamma-ray spectra of natural radionuclides collected by a NaI scintillation detector immersed in seawater. The gamma-rays emitted from the decay of (40)K, and the series of (232)Th and (238)U, were used to describe the radioactive water source around the NaI crystal. The simulated gamma-ray spectra were compared with real data recorded in situ by a newly constructed NaI spectrometer and were found to be in good agreement. The NaI spectrometer was calibrated in the laboratory in a water tank, before its deployment in seawater. Activity concentrations were deduced from the gamma-ray spectra and discussed in comparison with results from the literature.
Authors:
R Vlastou; I Th Ntziou; M Kokkoris; C T Papadopoulos; C Tsabaris
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2005-09-08
Journal Detail:
Title:  Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine     Volume:  64     ISSN:  0969-8043     ISO Abbreviation:  Appl Radiat Isot     Publication Date:  2006 Jan 
Date Detail:
Created Date:  2005-10-31     Completed Date:  2006-05-22     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  9306253     Medline TA:  Appl Radiat Isot     Country:  England    
Other Details:
Languages:  eng     Pagination:  116-23     Citation Subset:  IM    
Affiliation:
Department of Physics, National Technical University of Athens, 157 80 Athens, Greece. vlastou@central.ntua.gr
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MeSH Terms
Descriptor/Qualifier:
Computer Simulation
Gamma Rays*
Iodates*
Monte Carlo Method
Radiation Monitoring / methods*
Radioisotopes / analysis*
Seawater / chemistry*
Spectrometry, Gamma
Spectrum Analysis
Chemical
Reg. No./Substance:
0/Iodates; 0/Radioisotopes; 7681-55-2/sodium iodate

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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