Speaker
Description
Authors (affiliation): 1. Sang-Han Lee (KRISS, Rep of Korea), 2. Y. Jung (KRISS, Rep of Korea), 3. M.J. Lee (KRISS, Rep of Korea), 4. C. H. Lee (NDRI, Rep of Korea).
A metal wastes such as pipes, pumps and valves generated in large quantities in the operation of nuclear power plant and during the decommissioning process. In order to dispose of these metal wastes, it is announced that the concentration should be identified for 3H, 14C, 55Fe, 58Co, 60Co, 59Ni, 63Ni, 90Sr, 94Nb, 99Tc, 129I, 134Cs, 137Cs, 144Ce and total alpha.
The most ideal method for quality assurance to analyze the metal sample is to prepare the reference materials having same matrix composition and analyze each time using the same test procedure. However, in reality, developing a reference material using radioactively contaminated metal sample is a very difficult process in terms of sample acquisition and pretreatment. KRISS has recently developed a new liquid metal reference material that is a solution simulating an acid-dissolving 20 g of SUS-304/kg of acid and by adding radionuclides.
In addition to the metal solutions RM, research activity on the development of RM in various media developed by KRISS will be introduced.
