The work is devoted to the process of heat exchange a nuclear reactor. Attention was paid improving reliability fuel rods At same time, two cases cross section rod shell were considered: cylindrical and elliptical. Based on application differentiation method, it shown that level thermal stresses arising during transition from circular cross-section an elliptical one decreases. Which confirms ch...

Almost all major nuclear operations produce residues containing radioactive materials; in reactor operations, for example, the fission products, new elements (such as plutonium) produced by neutron irradiation and the unfissioned nuclear fuel are all radioactive. Some of this material can be put to further use: useful radioisotopes, for instance, can be extracted from the fission products and p...

A new detection technique, originally thought for the detection of explosives in cargo containers, is presented in this paper for the particular application of isotopic detection of nuclear materials in a Nuclear Energy System (NES). This technique is called Nuclear Resonance Fluorescence (NRF) and the reference fuel scheme to which it is applied is the Sodium Fast Reactor (SFR). The objective ...

Pursuant to Article 1 of the Convention signed in Paris on 14th December 1960, and which came into force on 30th September 1961, the Organisation for Economic Cooperation and Development (OECD) shall promote policies designed: − to achieve the highest sustainable economic growth and employment and a rising standard of living in Member countries, while maintaining financial stability, and thus t...

At the present stage of development no single energy resource or technology constitutes a panacea toaddress all issues. Therefore, it is necessary that all low-carbon and non-carbon emitting resources become anintegral part of an energy mix – as diversified as possible – to ensure energy security to the world during thepresent century. Available sources are low carbon fossil fuels, ...

The use of a Lead Slowing-Down Spectrometer (LSDS) is considered as a possible option for nondestructive assay of fissile material in used (spent) nuclear fuel. The primary objective is to quantify the remaining fissile content of the fuel consisting mainly of Pu and U. The characterization of spent fuel is particularly important for nuclear safeguards and for determining the fuel burn-up level...