ABSTRACT:The thermal to epithermal neutron flux ratio ƒ, epithermal neutron flux shape factor α, thermal
neutron flux th , and epithermal neutron flux epi in the irradiation channels of the Malaysian Nuclear Agency
research reactor were re-determined after a core reconfiguration to guarantee accuracy in applications the of
k0-neutron activation analysis (k0-NAA) method. The ƒ and α parameters were determined using bare biisotopic
monitor and bare triple-monitor methods, respectively, and Au and Zr monitors were used in 30 rotary
rack (RR) irradiation channels.
[1] De Corte, F., Speecke, A., Hoste, J., 1969. Reactor neutron activation analysis by a triple comparator method. Journal of Radioanal.
Nucl. Chem. 3, 205.
[2] De Corte, F., Simonits, A., DeWispelaere, A., Hoste, J., 1987. Accuracy and applicability of the k0-standardization method. Journal
of Radioanal. Nucl. Chem. 113, 145.
[3] De Corte, F., Simonits, A., Bellemans, F., Freitas, M.C., Jovanovic, S., Smodis, B., Erdtmann, G., Petri, H., De Wispelaere, A.,
1993. Recent advances in the k0-standardization of neutron activation analysis: Extensions, applications, prospects. Journal of
Radioanal. Nucl. Chem. 169, 125.
[4] Simonits, A., De Corte, F., De Wispelaere, A., Hoste, J., 1987. Nuclear data measurements for zirconium isotopes used for
activation analysis and neutron metrology. Journal of Radioanal. Nucl. Chem. 113, 187.