A study of possibility to design a fast neutron spectrometer based on the organic scintillator with surrounding materials
This paper deals with the design of a novel spectrometer of fast neutrons in nuclear safeguards applications based on the liquid organic scintillator EJ-309 with materials of different thickness surrounding the detector. The investigation was performed on the simulated data obtained by the...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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VINCA Institute of Nuclear Sciences
2014-01-01
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| Series: | Nuclear Technology and Radiation Protection |
| Subjects: | |
| Online Access: | http://www.doiserbia.nb.rs/img/doi/1451-3994/2014/1451-39941401001A.pdf |
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| author | Avdić Senada Marinković Predrag Osmanović Alma Gazdić Izet Hadžić Šejla Demirović Damir |
| author_facet | Avdić Senada Marinković Predrag Osmanović Alma Gazdić Izet Hadžić Šejla Demirović Damir |
| author_sort | Avdić Senada |
| collection | DOAJ |
| description | This paper deals with the design of a novel spectrometer of fast neutrons in
nuclear safeguards applications based on the liquid organic scintillator
EJ-309 with materials of different thickness surrounding the detector. The
investigation was performed on the simulated data obtained by the
MCNPX-PoliMi numerical code based on the Monte Carlo method. Among the
various materials (polyethylene, iron, aluminum, and graphite) investigated
as layers around the scintillator, polyethylene and iron have shown the most
promising characteristics for evaluation of fast neutron energy spectra. The
simulated pulse height distributions were summed up for each energy bin in
the neutron energy range between 1 MeV and 15 MeV in order to obtain better
counting statistics. The unfolded results for monoenergetic neutron sources
obtained by a first order of Tikhonov regularization and non-linear neural
network show very good agreement with the reference data while the evaluated
spectra of neutron sources continuous in energy follow the trend of the
reference spectra. The possible advantages of a novel spectrometer include a
less number of input data for processing and a less sensitivity to the noise
compared to the scintillation detector without surrounding materials. |
| first_indexed | 2024-12-11T19:03:49Z |
| format | Article |
| id | doaj.art-de855159a97e4f0b98bd375f6be50048 |
| institution | Directory Open Access Journal |
| issn | 1451-3994 |
| language | English |
| last_indexed | 2024-12-11T19:03:49Z |
| publishDate | 2014-01-01 |
| publisher | VINCA Institute of Nuclear Sciences |
| record_format | Article |
| series | Nuclear Technology and Radiation Protection |
| spelling | doaj.art-de855159a97e4f0b98bd375f6be500482022-12-22T00:53:57ZengVINCA Institute of Nuclear SciencesNuclear Technology and Radiation Protection1451-39942014-01-012911910.2298/NTRP1401001A1451-39941401001AA study of possibility to design a fast neutron spectrometer based on the organic scintillator with surrounding materialsAvdić Senada0Marinković Predrag1Osmanović Alma2Gazdić Izet3Hadžić Šejla4Demirović Damir5University of Tuzla, Faculty of Science, Department of Physics, Tuzla, Bosnia and HerzegovinaFaculty of Electrical Engineering, BelgradeUniversity of Tuzla, Faculty of Science, Department of Physics, Tuzla, Bosnia and HerzegovinaUniversity of Tuzla, Faculty of Science, Department of Physics, Tuzla, Bosnia and HerzegovinaUniversity of Tuzla, Faculty of Science, Department of Physics, Tuzla, Bosnia and HerzegovinaUniversity of Tuzla, Faculty of Electrical Engineering, Tuzla, Bosnia and HerzegovinaThis paper deals with the design of a novel spectrometer of fast neutrons in nuclear safeguards applications based on the liquid organic scintillator EJ-309 with materials of different thickness surrounding the detector. The investigation was performed on the simulated data obtained by the MCNPX-PoliMi numerical code based on the Monte Carlo method. Among the various materials (polyethylene, iron, aluminum, and graphite) investigated as layers around the scintillator, polyethylene and iron have shown the most promising characteristics for evaluation of fast neutron energy spectra. The simulated pulse height distributions were summed up for each energy bin in the neutron energy range between 1 MeV and 15 MeV in order to obtain better counting statistics. The unfolded results for monoenergetic neutron sources obtained by a first order of Tikhonov regularization and non-linear neural network show very good agreement with the reference data while the evaluated spectra of neutron sources continuous in energy follow the trend of the reference spectra. The possible advantages of a novel spectrometer include a less number of input data for processing and a less sensitivity to the noise compared to the scintillation detector without surrounding materials.http://www.doiserbia.nb.rs/img/doi/1451-3994/2014/1451-39941401001A.pdfneutron sourceorganic scintillatorshielding materialunfolding methodMCNPX_PoliMi code |
| spellingShingle | Avdić Senada Marinković Predrag Osmanović Alma Gazdić Izet Hadžić Šejla Demirović Damir A study of possibility to design a fast neutron spectrometer based on the organic scintillator with surrounding materials Nuclear Technology and Radiation Protection neutron source organic scintillator shielding material unfolding method MCNPX_PoliMi code |
| title | A study of possibility to design a fast neutron spectrometer based on the organic scintillator with surrounding materials |
| title_full | A study of possibility to design a fast neutron spectrometer based on the organic scintillator with surrounding materials |
| title_fullStr | A study of possibility to design a fast neutron spectrometer based on the organic scintillator with surrounding materials |
| title_full_unstemmed | A study of possibility to design a fast neutron spectrometer based on the organic scintillator with surrounding materials |
| title_short | A study of possibility to design a fast neutron spectrometer based on the organic scintillator with surrounding materials |
| title_sort | study of possibility to design a fast neutron spectrometer based on the organic scintillator with surrounding materials |
| topic | neutron source organic scintillator shielding material unfolding method MCNPX_PoliMi code |
| url | http://www.doiserbia.nb.rs/img/doi/1451-3994/2014/1451-39941401001A.pdf |
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