Determination of Thermal Epithermal Neutron Fluz Ratio (f), and Epithermal, Neutron Flux Shape Factor (Î±) in the Large Sample INAA Instrumental Neutron Activation Analysis Irradiation Channel at the Gharr-1 Facility
Keywords:LSNAA, GHARR-1, k0, neutrons
AbstractThe thermal-to-epithermal neutron ratio (f) and epithermal neutron shaping factor (a) are essential parameters when calculating the concentration of samples using the k0-standardization method in the Large sample neutron activation analysis (LSNAA). The work was performed in a newly installed Large Sample Neutron Activation Analysis facility in the Ghana Research Reactor-1 (GHARR-1) facility using Au/Zr monitor couple. The thermal to epithermal neutron ratio was found to be 8.25 Â± 0.14 and epithermal neutron shape factor (a) was also found to be 0.32998 Â± 0.012. These results aided us in the determination of elemental concentration of â€œlarge samplesâ€ using the k0-standardization method at the GHARR-1 facility.
A. Simonits, F. De Corte, J. Hoste, Zirconium as a Multi-Isotopic Flux Ratio Monitor and a Single Comparator in Reactor-Neutron Activation Analysis, Journal of Radioanalytical Nuclear Chemistry, 31 (1976) 467.
F De Corte, A Simonits, Vade Mecum for ko-users, DSM Research, Gelen (Nl), 1994
K. S. Khoo, S. B. Sarmani, I. O. Abugassa, Determination of thermal to epithermal neutron flux ratio (f), epithermal neutron flux shape factor (Î±) and comparator factor (Fc) in the Triga Mark II Reactor, Malaysia, Journal of Radioanalytical and Nuclear Chemistry, Vol. 271, No.2 (2007) 419â€“424
Kubesova, M. and Kucera, J. (2012). How to calculate uncertainties of neutron flux parameters and uncertainties of analysis results in k0-NAA?, J Radioanal Nucl Chem 293:87â€“94.
A.R. Yavar, S. B. Sarmani, H. Khalafi, A. K. Wood, K. S. Khoo, Overview of INAA Method And its Application in Malaysia, Journal of Nuclear and Related Technologies, Volume 8, No. 2, December, 2011.
Soliman, M., Mohamed, N. M. A., Gaheen, M. A., Saad, E. A., Yousef, S. K., Sohsah, M. A., (2011). Implementation of k0-standardization method of the INAA at ETRR-2 research reactor, J Radioanal Nucl Chem 287:629â€“634
Alghem, L., Ramdhane, M., Khaled, S. and Akhal, T. (2006). The development and application of k0-standardization method of neutron activation analysis at Es-Salam research reactor. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 556: 386-390.
De Corte, F., Simonits, A., De Wispelaere, A., and Hoste, J.,(1987). Accuracy and applicability of the k0- standardization method. Journal of Radioanal. Nucl. Chem. 113, 145-161.
Lin, X., & Li, X. (1997). The program â€œMULTINAAâ€ for various standardization methods in neutron activation analysis. Radioanal. Nucl. Chem. 215: 179-191.
How to Cite
- Papers must be submitted on the understanding that they have not been published elsewhere (except in the form of an abstract or as part of a published lecture, review, or thesis) and are not currently under consideration by another journal published by any other publisher.
- It is also the authors responsibility to ensure that the articles emanating from a particular source are submitted with the necessary approval.
- The authors warrant that the paper is original and that he/she is the author of the paper, except for material that is clearly identified as to its original source, with permission notices from the copyright owners where required.
- The authors ensure that all the references carefully and they are accurate in the text as well as in the list of references (and vice versa).
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Attribution-NonCommercial 4.0 International that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).
- The journal/publisher is not responsible for subsequent uses of the work. It is the author's responsibility to bring an infringement action if so desired by the author.