نتایج جستجو برای: spent fuel
تعداد نتایج: 102934 فیلتر نتایج به سال:
The upcoming disposal of spent nuclear fuel in Finland creates new challenges for safeguards. Part the national safeguards concept geological repositories, developed by STUK — Radiation and Nuclear Safety Authority, is non-destructive assay (NDA) verification all items before disposal. proposed system a combination PGET (Passive Gamma Emission Tomography), PNAR Neutron Albedo Reactivity) weight...
Assessment of gamma emission tomography (GET) for spent nuclear fuel verification is the task in IAEA MSP project JNT1955. In line with IAEA Safeguards R&D plan 2012-2023, the aim of this effort is to “develop more sensitive and less intrusive alternatives to existing NDA instruments to perform partial defect tests on spent fuel assemblies prior to transfer to difficult to access storage". The ...
The president realized that the nation lacked a clear policy for developing a deep-mined geologic repository for high-level radioactive waste and spent nuclear fuel. New legislation would be required to chart a more promising path forward. The views of multiple parties had to be taken into account. He decided to create a high-level body to ventilate the issues involved and to make recommendatio...
Uranium 236 is a long-lived radionuclide which is created from the naturally occurring trace isotope 235U (0.72% abundance) by thermal neutron capture. This process leads to a natural abundance of 236U in the range from 10-14—10-13 relative to the major 238U isotope (236U/238U). 236U is also created during the process of uranium enrichment for nuclear fuel or weapons, and as a waste product fro...
An assessment of the radiotoxicity of spent nuclear material and the fuel handling issues associated with plutonium (Pu) or transuranics (TRU) multi-recycling in PWRs using the CORAIL assembly concept has been performed. This necessitated the development of an analytical approach to solve directly for the equilibrium state of repeated recycle, including higher actinide content. The equilibrium ...
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