Current research has identified Duplex pellets as an effective strategy for decreasing the centerline temperature of the fuel. However, before this design can be widely utilized several areas, including fission gas release, need to be better characterized. Therefore, this paper seeks to ascertain the relative difference in fission gas release between a standard solid UO2 reference design and a ...

The radionuclide of uranium (U) is major radionuclide contained in the long life of high level radioactive liquid waste (HLLW) generated from reprocessing of spent nuclear fuel. The radioactive waste have to be treated to ready for long term disposal. Separation of the U at high efficiencies greatly lowers the volume of the long life alpha radioactive waste to be disposed and decreases the haza...

The multidimensionally-constrained covariant density functional theories (MDC-CDFTs) have been developed to study the influence of octupole and triaxial deformations on ground state fission properties. In this paper, we present a brief review applications MDC-CDFTs discuss results systematical even-[Formula: see text] uranium isotopes with relativistic mean field (MDC-RMF) model which is one pa...

INTRODUCTION I (t1/2 = 1.57.10 years) is produced in nature by spontaneous fission of natural uranium and spallation reactions of cosmic radiation with xenon in the upper atmosphere. Two important artificial sources are nuclear weapons tests and normal operation of nuclear facilities, which originate long-lived radioiodine, as a result of uranium fission. At present, the terrestrial equilibrium...