An isotopic fingerprinting method is presented to determine the origin of unknown nuclear material with forensic importance. Spent nuclear fuel of known origin has been considered as the 'unknown' nuclear material in order to demonstrate the method and verify its prediction capabilities. The method compares, using factor analysis, the measured U, Pu isotopic compositions of the 'unknown' materi...

Environmental releases of insoluble nuclear fuel compounds may occur at nuclear power plants during normal operation, after nuclear power plant accidents, and as a consequence of nuclear weapons testing. For example, the Chernobyl fallout contained extensive amounts of pulverized nuclear fuel composed of uranium and its nonvolatile fission products. The effects of these highly radioactive parti...

The safe and effective management of radioactive waste has been given utmost importance from the very inception of nuclear industry in India and it covers the entire range of activities from handling, treatment, conditioning, transport, storage and finally disposal. Radioactive waste is generated at various stages of the nuclear fuel cycle, which includes the mining and milling of uranium ore, ...

Depending on the growing industry and population, energy needs are increasing day by day. This issue makes it necessary use of renewable sources as much possible. There is a interest in pellet fuel pellet-fired combustion systems, which one sources. In this work, performance analyzes pellet-fueled boilers with two different feeding systems (horizontal-fed top-fed) flue gas outlet positions were...

In 2004, as many as 444 nuclear energy reactors were operated in 31 countries worldwide. Most of them burn classical nuclear fuels, thus either uranium dioxide UO2 containing natural uranium, uranium enriched by U-235 or, less often, the so-called MOX (Mixed Oxide) fuel, which is a mixture of UO2 and PuO2 . The use of nuclear fuels and introduction of their novel types requires detailed knowled...