Estimation of scattering contribution in the calibration of neutron devices with radionuclide sources in rooms of different sizes
Calibrations of neutron devices used in area monitoring are often performed by radionuclide neutron sources. Device readings increase due to neutrons scattered by the surroundings and the air. The influence of said scattering effects have been investigated in this paper by performing Monte...
Main Author: | |
---|---|
Format: | Article |
Language: | English |
Published: |
VINCA Institute of Nuclear Sciences
2015-01-01
|
Series: | Nuclear Technology and Radiation Protection |
Subjects: | |
Online Access: | http://www.doiserbia.nb.rs/img/doi/1451-3994/2015/1451-39941501047K.pdf |
_version_ | 1819089557457469440 |
---|---|
author | Khabaz Rahim |
author_facet | Khabaz Rahim |
author_sort | Khabaz Rahim |
collection | DOAJ |
description | Calibrations of neutron devices used in area monitoring are often performed
by radionuclide neutron sources. Device readings increase due to neutrons
scattered by the surroundings and the air. The influence of said scattering
effects have been investigated in this paper by performing Monte Carlo
simulations for ten different radionuclide neutron sources inside several
sizes of concrete wall spherical rooms (Rsp = 200 to 1500 cm). In order to
obtain the parameters that relate the additional contribution from scattered
neutrons, calculations using a polynomial fit model were evaluated. Obtained
results show that the contribution of scattering is roughly independent of
the geometric shape of the calibration room. The parameter that relates the
room-return scattering has been fitted in terms of the spherical room radius,
so as to reasonably accurately estimate the scattering value for each
radionuclide neutron source in any geometry of the calibration room. |
first_indexed | 2024-12-21T22:09:50Z |
format | Article |
id | doaj.art-a5dc39a3707b408fbddfe18737d6ae5d |
institution | Directory Open Access Journal |
issn | 1451-3994 |
language | English |
last_indexed | 2024-12-21T22:09:50Z |
publishDate | 2015-01-01 |
publisher | VINCA Institute of Nuclear Sciences |
record_format | Article |
series | Nuclear Technology and Radiation Protection |
spelling | doaj.art-a5dc39a3707b408fbddfe18737d6ae5d2022-12-21T18:48:38ZengVINCA Institute of Nuclear SciencesNuclear Technology and Radiation Protection1451-39942015-01-01301475410.2298/NTRP1501047K1451-39941501047KEstimation of scattering contribution in the calibration of neutron devices with radionuclide sources in rooms of different sizesKhabaz Rahim0Golestan University, Faculty of Sciences, Physics Department, Gorgan, IranCalibrations of neutron devices used in area monitoring are often performed by radionuclide neutron sources. Device readings increase due to neutrons scattered by the surroundings and the air. The influence of said scattering effects have been investigated in this paper by performing Monte Carlo simulations for ten different radionuclide neutron sources inside several sizes of concrete wall spherical rooms (Rsp = 200 to 1500 cm). In order to obtain the parameters that relate the additional contribution from scattered neutrons, calculations using a polynomial fit model were evaluated. Obtained results show that the contribution of scattering is roughly independent of the geometric shape of the calibration room. The parameter that relates the room-return scattering has been fitted in terms of the spherical room radius, so as to reasonably accurately estimate the scattering value for each radionuclide neutron source in any geometry of the calibration room.http://www.doiserbia.nb.rs/img/doi/1451-3994/2015/1451-39941501047K.pdfneutroncalibrationscattering contributionradionuclide sourceMCNPX |
spellingShingle | Khabaz Rahim Estimation of scattering contribution in the calibration of neutron devices with radionuclide sources in rooms of different sizes Nuclear Technology and Radiation Protection neutron calibration scattering contribution radionuclide source MCNPX |
title | Estimation of scattering contribution in the calibration of neutron devices with radionuclide sources in rooms of different sizes |
title_full | Estimation of scattering contribution in the calibration of neutron devices with radionuclide sources in rooms of different sizes |
title_fullStr | Estimation of scattering contribution in the calibration of neutron devices with radionuclide sources in rooms of different sizes |
title_full_unstemmed | Estimation of scattering contribution in the calibration of neutron devices with radionuclide sources in rooms of different sizes |
title_short | Estimation of scattering contribution in the calibration of neutron devices with radionuclide sources in rooms of different sizes |
title_sort | estimation of scattering contribution in the calibration of neutron devices with radionuclide sources in rooms of different sizes |
topic | neutron calibration scattering contribution radionuclide source MCNPX |
url | http://www.doiserbia.nb.rs/img/doi/1451-3994/2015/1451-39941501047K.pdf |
work_keys_str_mv | AT khabazrahim estimationofscatteringcontributioninthecalibrationofneutrondeviceswithradionuclidesourcesinroomsofdifferentsizes |