Slant tube characterization for the implementation of k0 - standardization in Nigerian reseach reactor-1

Umar Aliyu Abubakar, Jonah A Sunday, Umar Sadiq, Khaidzir Hamzah

Abstract


The result for large sample irradiation are continuously piping into the Center for Energy Research and Training (CERT), Ahmadu Bello University, Zaria. Therefore, characterization of the irradiation channels that can accommodate large samples become a challenge. In the first series of trial for large samples irradiation through slant tube of NIRR-1 which is a miniature research reactor is necessary in order to compare with some standard values reported by the arena of researchers including nuclear regulatory bodies. The thermal to epithermal flux ratio (f), epithermal neutron flux distribution parameters (α) were determined using two slant tube channels of NIRR-1. The adopted methodology here is bared and cadmium covered monitor foils method. The vertical dipstick higher purity germanium detector (HPGE) was calibrated and used for the calculation. The f and α values were calculated as 111.8 and -0.04977 respectively.  The good agreement between the certified and experimental values of the shaping factors was achieved. 


Full Text:

PDF

References


Sadiq, U., Jonah, S. A., Nasiru, R.., Zakari, Y. 2010. Neutron spectrum parameters in two irradiation channels of the Nigeria Research Reactor-1 (NIRR-1) for use in k 0-NAA. Bayero Journal of Pure and Applied Sciences 3(1), 220 – 223.

Hamidatou, L., Slamene, H., Akhal, T., Begaa, S., Messaoudi, M., Boussaad, Z. 2013. NAA Algerian Laboratory Evaluation Processed by WEPAL and IAEA during 2011-2012. Journal of Analytical Sciences, Methods and Instrumentation 3, 184 – 192.

Hamidatou., L., Hocine S., and Mohamed, L. S. 2015. Major, minor and trace elements in four kinds of cement powder using INAA and k0-standardization methods. Journal of Radioanalytical and Nuclear Chemistry 304(2), 717 – 725.

Robert, G. R., Bode, P., Elisabete A., and Fernandes, D. N. 2011. Neutron activation analysis: a primary method of measurement. Spectrochimica Acta Part B: Atomic Spectroscopy 66(3), 193 – 241.

Robouch, V. P., Eguskiza, P, M., De Corte, F., Kennedy, G., Smodiš, B., Jaćimović, R., Yonezawa, C., Matsue, H., Lin, X. 2006. Characterization of synthetic multi-elemental standards (SMELS) used for validation of Ko-NAA. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 564(2), 675 – 682.

Alghem, L., Ramdhane, M., Khaled, S., Akhal, T. 2006. The development and application of k0-standardization method of neutron activation analysis at Es-salam reactor. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 556(1), 386 – 390.

Akaho, E. H. K. and Nyarko, B. J. B. 2002. Characterization of neutron flux spectra in irradiation sites of MNSR reactor using the westcott-formalism for the k0 neutron activation analysis method. Applied Radiation and Isotopes 56(2), 265 – 273.

De Corte, F., Sluijs, V., Robbert S., Kučera, A., Smodiš, J., Byrne, B., Anthony, R., Wispelaere, De., Bossus, A., Frána, D., Zbyněk, J, H. 2001. Installation and calibration of Kayzero-assisted NAA in three Central European countries via a Copernicus project. Applied Radiation and Isotopes, 55(3), 347 – 354.

Jonah, S. A., Liaw, J. R., Matos, J. E. 2007. Monte Carlo simulation of core physics parameters of the Nigeria Research Reactor-1 (NIRR-1). Annals of Nuclear Energy 34(12), 953 – 957.

Jonah, S. A., Balogun, G. I., Umar, I. M., Mayaki, M.C. 2005. Neutron spectrum parameters in irradiation channels of the Nigeria Research Reactor-1 (NIRR-1) for ko-NAA standardization. Journal of Radioanalytical and Nuclear Chemistry, 266(1), 83 – 88.




DOI: http://dx.doi.org/10.11113/mjfas.v13n2.544

Refbacks

  • There are currently no refbacks.


Copyright (c) 2017 Jonah A Sunday, Umar Sadiq, Khaidzir Hamzah

Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.


Copyright © 2016 Penerbit UTM Press, Universiti Teknologi Malaysia. Disclaimer: This website has been updated to the best of our knowledge to be accurate. However, Universiti Teknologi Malaysia shall not be liable for any loss or damage caused by the usage of any information obtained from this website. AmazingCounters.com