MCNP modelling of scintillation-detector γ-ray spectra from natural radionuclides

MCNP modelling of scintillation-detector γ-ray spectra from natural radionuclides

γ-ray spectra of natural radionuclides are simulated for a BGO detector in a borehole geometry using the Monte Carlo code MCNP. All γ-ray emissions of the decay of 40K and the series of 232Th and 238U are used to describe the source. A procedure is proposed which excludes the time-consuming electron...

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Veröffentlicht in:Applied radiation and isotopes 2002-09, Vol.57 (3), p.449-457
Hauptverfasser: Hendriks, P.H.G.M, Maučec, M, de Meijer, R.J
Format: Artikel
Sprache:eng
Schlagworte:
Benchmark
Borehole
MCNP
Monte Carlo simulation
Natural radioactivity
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Zusammenfassung:γ-ray spectra of natural radionuclides are simulated for a BGO detector in a borehole geometry using the Monte Carlo code MCNP. All γ-ray emissions of the decay of 40K and the series of 232Th and 238U are used to describe the source. A procedure is proposed which excludes the time-consuming electron tracking in less relevant areas of the geometry. The simulated γ-ray spectra are benchmarked against laboratory data.
ISSN:0969-8043
1872-9800
DOI:10.1016/S0969-8043(02)00118-5