k0-Instrumental neutron activation analysis establishment at CDTN, Brazil: A successful story

Since 1995 the k0 instrumental neutron activation analysis has been applied at Radiochemical Laboratory, CDTN/CNEN, Brazil, by means of TRIGA MARK I IPR-R1 research reactor. At that time α, f, and Tn were determined and the most recent determination of these parameters confirmed the great stability of the reactor along these years. In order to verify the efficiency and accuracy of the method, several certified reference materials have been systematically analyzed. Participating in Intercomparison Exercises organized by IAEA has been an important, essential and useful procedure to quality control. CDTN is the only Brazilian Institute to apply the k0-INAA to determine elements by means of their isotopes through short, medium and long half life using its own nuclear reactor.