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Application of a volumetric neutron source to enhance the use of raw materials in nuclear power from thermal reactors

Author:
Kotov   V. M.  


Journal:
Plasma Devices and Operations


Issue Date:
2007


Abstract(summary):

The determinant role of raw uranium usage for atomic power production in the twenty-first century is shown. The limitations of modern reactors are the low fission materials breeding in thermal reactors and the large amount of uranium needed for start-up of fast reactors. Thermal reactor breeding can be increased under the following conditions: a decrease in the neutron losses in structural materials, leakage and operative control, and the use of a closed balanced fuel cycle. In this case, some of the raw U-235 in the fuel at the start of the campaign decreases. Replacement of the raw U-235 by U-233 produced from thorium increases the raw usage up to 100%. The yield of 233U in a fission reactor decreases the burning-out. Production of U-233 by a tokamak-based volumetric neutron source (VNS) removes the burning-out limitation. In this case, the energy consumed by the VNS is much less than the gain in the fission reactor energy production.


Page:
219-224


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