MCNPX simulation of influence of cosmic rays on low-activity spectrometric measurements

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00177016%3A_____%2F12%3A%230000784" target="_blank" >RIV/00177016:_____/12:#0000784 - isvavai.cz</a>

Alternative codes found

RIV/00177016:_____/14:#0000866

Result on the web

<a href="http://dx.doi.org/10.1016/j.radphyschem.2012.12.034" target="_blank" >http://dx.doi.org/10.1016/j.radphyschem.2012.12.034</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.radphyschem.2012.12.034" target="_blank" >10.1016/j.radphyschem.2012.12.034</a>

Result language

angličtina

Original language name

MCNPX simulation of influence of cosmic rays on low-activity spectrometric measurements

Original language description

Germanium gamma spectrometers are effective instruments for low-activity measurement of a mixture of radionuclides in environmental samples, food samples, in materials released from nuclear facilities to the environment, etc. In such measurements cosmicrays have a signi?cant contribution to the background signal. A Monte Carlo code MCNPX was used to calculate coaxial high-purity germanium (HPGe) detector pulse-height spectra caused by cosmic rays penetrating through shielding made of concrete and lead.Simulations were compared to two different measurements, one performed inside a 10 cm thick lead shielding and another done inside a larger chamber made of low-activity concrete and with several ceiling thicknesses. In the ?rst experiment, a discrepancywas found between simulated and measured spectra by up to the factor of 4 at 2.62 MeV and slowly decreasing to unity at 13 MeV. It is assumed that the discrepancy between the measured and simulated spectra is caused by the simpli?cation

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BG - Nuclear, atomic and molecular physics, accelerators

OECD FORD branch

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Project

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Continuities

R - Projekt Ramcoveho programu EK

Publication year

2014

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Radiation Physics and Chemistry

ISSN

0969-806X

e-ISSN

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Volume of the periodical

2014

Issue of the periodical within the volume

95

Country of publishing house

GB - UNITED KINGDOM

Number of pages

4

Pages from-to

181-184

UT code for WoS article

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EID of the result in the Scopus database

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