T. Suzuki

TL;DR: In this paper, the dissolution behavior of PWR spent nuclear fuels of 7000 to 39000 MWd/t and the chemical properties of fission product insoluble residues obtained by the nitric acid dissolution of the fuels were investigated.

TL;DR: In this paper, a sequential ion exchange separation method was developed for use in burnup measurements of nuclear fuels, where heavy elements such as U, Np and Pu, and some fission products selected as burnup monitors, such as Cs, Mo and Nd, were sequentially and quantitatively separated from a sample taken from spent fuel.

TL;DR: In this article, a high-resolution Ge(Li) detector was used to estimate the relative photopeak efficiencies of the γ-rays, and an empirical curve was derived from measurements of the three γrays of 239Pu adopted as internal standard.

TL;DR: A method for rapidly analyzing the γ spectrum obtained with Ge(Li) detectors was developed for a medium-size electronic computer based on the first derivative method, associated with a number of peak-shape tests.

TL;DR: In this paper, a multi-points and reliable high-speed gas analytical system with Laser Raman spectroscopy was successfully demonstrated in the experiment to analyze the hydrogen isotopes of H2-HD-HT-D2-DT-T2 within 1 min with the analysis limit of 1000 ppm, which indicates that this system enables fine control of the ISS.