Preferences help
enabled [disable] Abstract
Number of results
2017 | 66 | 86-96
Article title

Nuclear model calculation of excitation functions of neutron induced reactions on the structural materials of the miniature neutron source reactor (Nigeria Research Reactor 1)

Title variants
Languages of publication
Nuclear models calculation of excitation functions was performed using the nuclear theoretical model code EXIFON on the impurity nuclides of the Be-reflector of the MNSR (NIRR-1). Elements with concentration greater than 100 ppm were considered in the energy range of 0-20 MeV. Result of the calculated excitation functions obtained with the code EXIFON were compared with the experimental data retrieved from IAEA-Nuclear Data section EXFOR data library. Some of the results of the calculated excitation functions agree well with the experimental data, while some disagree. The good agreement was obtained for nuclides with magic number of neutrons and protons. Shell structure effects were not taken into consideration during calculation with theoretical model code. This might be the reason for disagreement. It is also noted that most of the data retrieved from EXFOR data library were incomplete, scanty, and are measured around 14 MeV. This exposed the short coming of using measured data for calculation of excitation functions. On the other hand the result of calculated excitation function with the Code EXIFON seems to give good result. Empirical research method was largely used in determining the success of this research.
Physical description
  • Nuclear Reactor Facility Section, CERT, ABU Zaria, Nigeria
  • Physics Department, University of Maiduguri, Nigeria
  • Physics Department, Umaru Musa Yar, Adua, University Katsina, Nigeria
  • [1] Bernard L. Cohen (1971). Concept of Nuclear Physics, Tata McGraw-Hill, New Delhi.
  • [2] Bologun, G. I., Garba, H. B., Umar, I. M., Oladipo, M. O. A, Egune, P. M., Ewa, I. O. B., Funtua, I. I., Jonah, S. A., Mati, A. M., and Yaro, Y. (2005). Nigerian Research Reactor 1. (NIRRI) First Safety Analysis Report-SAR” CERT/NIRR-I 001, Zaria, Nigeria.
  • [3] Calson, B. V. (2001). A Brief Overview of Models of Nucleon induced Reaction. Work shop on Nuclear Data Science and Technology, Accelerators driven, waste incineration, Trieste, Italy.
  • [4] Hauser, W. and Feshback H. (1952). Inelastic Scattering of Neutrons. Physics, Rev. 87.
  • [5] Herman, A., Capote-Noye, C., Oblozinsky, P., Trkov, A., and Zerkin, V. (2002). Recent Development and Validation of Nuclear Reaction Codes. Journal Nuclear Science and Technology, supplement 2.
  • [6] Hughes, D. J. (1957). On Nuclear Energy, Oxford University Press, London.
  • [7] Hughes D. J. (1957), Neutron Cross Sections International Series of Monographs on Nuclear Physics, Perganon Press, New York.
  • [8] Jonah, S. A., Liaw, J. I., Matos, J. E., (2007). Monte Carlos Simulation of Core Physics Parameters of the Nigeria Research Reactor – 1 (NIRR 1). Science Direct Annals of Nuclear Energy 34 (2007) 9532957
  • [9] Jonah, S. A. (2005). Fission Neutron-induced analytical Sensitivities and Interference factors in N.A.A. with MNSR Reactors C.E.R.T, Ahmadu Bello University, Zaria.
  • [10] Jonah, S. A. (2004). Shell Structure Effect in Neutron Cross Section Calculation by Theoretical Model Code. Nigerian Journal of Physics 16(2).
  • [11] Kalka H. (1991). Exifon - A Statistical Multistep Reaction Code Report. Technische University Dresden, Germany.
  • [12] Kalka H., Torgman, Lien H. N. Lopezs, R and Seegler, D. (1990). Description of (n p) and (n 2n) Activation Cross Section for Medium Mass Nuclei within Statistical Multi Theory Z. Physics A. Atomic Nuclei 335.
  • [13] Pierre, M. and Sheldon, E. (1971). Physics of Nuclei and Particles, Academic Press Inc., London.
  • [14] Talou, P., Chadwick, M. B., Dictrech, F., Herman, M., Kawanu, T., Koning, A., Ohion, P. Z. (2004). Sub Group A Nuclear Model Codes. Report of the Sixteenth Meeting of the WPEC, France.
Document Type
Publication order reference
YADDA identifier
JavaScript is turned off in your web browser. Turn it on to take full advantage of this site, then refresh the page.