k(0) Standardization approach in neutron-induced prompt gamma-ray analysisat JAERI

The k(0) standardization method has been studied and applied at JAERI for t he accurate determination of multielements by neutron-induced prompt gamma- ray analysis (PGA). The k(0) factors for 26 elements using Cl as a comparat or were measured by the cold and thermal neutron guided beams of JRR-3M wit h an uncertainty less than 3% except for a few elements. The k(0) factors f or most elements obtained with both cold and thermal neutrons agreed within 3%, and agreed also with those measured at other cold and thermal neutron guided beams within 10%, except for a few elements. Multielement determinat ions in reference materials were performed using the k(0) factors obtained to evaluate the accuracy and precision of this work.