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UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2024-11-22 1:31 |
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Conference: Bucharest University Faculty of Physics 2007 Meeting
Section: Nuclear and Elementary Particles Physics
Title:
Dose calculation for accident situations
at triga research reactor using leu fuel type
Authors:
Sorin Margeanu , Tatiana Angelescu
Affiliation:
1) Institute for Nuclear Research, PO.Box-78, 115400-Pitesti, Romania
2) Faculty of Physics, University of Bucharest, PO.Box MG-12, Bucharest, Romania
E-mail
margeanu@scn.ro
Keywords:
nuclear accident, nuclear reactor, nuclear fuel, dose assessment, accident consequences
Abstract:
The 14MW TRIGA R.R. is a unique design of TRIGA conception. The core was fully converted in May 2006 to use LEU fuel instead of the HEU fuel type. The core contains 29 fuel assemblies, 8 control rods and beryllium reflector, associated instrumentation and controls. The U-235 enrichment for TRIGA – HEU fuel is 93.15 wt % and for TRIGA - LEU is 40.00 wt %. The differences between the two fuel types, as shown by the calculations, will results in a higher core inventory especially for heavy elements (i.e. actinides and transuranium elements), but modifications for noble gases, halogens and other volatile fission products are not so important. Dose calculations for an hypothetical accident scenario was considered and dose and radiological consequence calculations were performed. The results of the calculations and a discussion related on the differences between the consequences in the two cases are also presented.
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