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Experimental validation of some thermal neutron self-shielding calculation methods for cylindrical samples in INAA

Fulvio Farina, Peter Vermaercke, Liesel Sneyers and Karel Strijckmans UGent (2012) JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY. 291(2). p.529-534
abstract
Neutron self-shielding has been a factor of concern in the history of Instrumental Neutron Activation Analysis. When the sample to be analyzed cannot be made small enough in size and/or sufficiently diluted, this undesired phenomenon must be accounted for. Several analytical, semi-empirical and computational methods for estimating the thermal neutron self-shielding effects have been extensively discussed in the literature and this work aims at the experimental validation of some of these methods by neutron irradiation of cylindrical samples containing strong thermal neutron absorbers. The accuracy and the relative differences in the results between these methods are discussed for cylindrical samples with up to 40% thermal self-shielding, showing that a semi-empirical sigmoidal function can be more accurate in modeling this effect than other exact algorithms, where a maximum 2% relative difference to the experimental values was obtained.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
Neutron absorption, Neutron scattering, Instrumental Neutron Activation Analysis, Neutron self-shielding, Thermal neutrons
journal title
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
J. Radioanal. Nucl. Chem.
volume
291
issue
2
pages
529 - 534
conference name
13th Conference on Modern Trends in Neutron Activation Analysis
conference location
College Station, TX, USA
conference start
2011-03-13
conference end
2011-03-18
Web of Science type
Article
Web of Science id
000298862400043
JCR category
NUCLEAR SCIENCE & TECHNOLOGY
JCR impact factor
1.467 (2012)
JCR rank
3/34 (2012)
JCR quartile
1 (2012)
ISSN
0236-5731
DOI
10.1007/s10967-011-1211-y
language
English
UGent publication?
yes
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
1985939
handle
http://hdl.handle.net/1854/LU-1985939
date created
2012-01-13 13:37:02
date last changed
2018-01-29 12:18:50
@article{1985939,
  abstract     = {Neutron self-shielding has been a factor of concern in the history of Instrumental Neutron Activation Analysis. When the sample to be analyzed cannot be made small enough in size and/or sufficiently diluted, this undesired phenomenon must be accounted for. Several analytical, semi-empirical and computational methods for estimating the thermal neutron self-shielding effects have been extensively discussed in the literature and this work aims at the experimental validation of some of these methods by neutron irradiation of cylindrical samples containing strong thermal neutron absorbers. The accuracy and the relative differences in the results between these methods are discussed for cylindrical samples with up to 40\% thermal self-shielding, showing that a semi-empirical sigmoidal function can be more accurate in modeling this effect than other exact algorithms, where a maximum 2\% relative difference to the experimental values was obtained.},
  author       = {Farina, Fulvio and Vermaercke, Peter and Sneyers, Liesel and Strijckmans, Karel},
  issn         = {0236-5731},
  journal      = {JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY},
  keyword      = {Neutron absorption,Neutron scattering,Instrumental Neutron Activation Analysis,Neutron self-shielding,Thermal neutrons},
  language     = {eng},
  location     = {College Station, TX, USA},
  number       = {2},
  pages        = {529--534},
  title        = {Experimental validation of some thermal neutron self-shielding calculation methods for cylindrical samples in INAA},
  url          = {http://dx.doi.org/10.1007/s10967-011-1211-y},
  volume       = {291},
  year         = {2012},
}

Chicago
Farina, Fulvio, Peter Vermaercke, Liesel Sneyers, and Karel Strijckmans. 2012. “Experimental Validation of Some Thermal Neutron Self-shielding Calculation Methods for Cylindrical Samples in INAA.” Journal of Radioanalytical and Nuclear Chemistry 291 (2): 529–534.
APA
Farina, Fulvio, Vermaercke, P., Sneyers, L., & Strijckmans, K. (2012). Experimental validation of some thermal neutron self-shielding calculation methods for cylindrical samples in INAA. JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY, 291(2), 529–534. Presented at the 13th Conference on Modern Trends in Neutron Activation Analysis.
Vancouver
1.
Farina F, Vermaercke P, Sneyers L, Strijckmans K. Experimental validation of some thermal neutron self-shielding calculation methods for cylindrical samples in INAA. JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY. 2012;291(2):529–34.
MLA
Farina, Fulvio, Peter Vermaercke, Liesel Sneyers, et al. “Experimental Validation of Some Thermal Neutron Self-shielding Calculation Methods for Cylindrical Samples in INAA.” JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY 291.2 (2012): 529–534. Print.