Systematic errors in 14-MeV neutron activation analysis for oxygen : Part II. A general standardization method for the determination of oxygen

Abstract A general standardization method is described for the determination of oxygen in solid samples via the 16 O(n,p) 16 N reaction. Two systems of flux monitoring are considered: the sample versus standard comparator method and BF 3 monitoring. The average flux in sample and standard, fast neutron shielding, fast neutron scattering, absorption of fast neutrons, absorption of 16 N γ-rays and counting efficiency of sample and standard are considered. The influence of the target diameter on the obtained correction factors has also been studied. Total achievable accuracy is believed to be about 1%.