Evaluation for 4S core nuclear design method through integration of benchmark data
- Advanced System Design and Engineering Dept., Isogo Nuclear Engineering Center, Toshiba Corporation, 8, Shinsugita-Cho, Isogo-ku, Yokohama, 235-8523 (Japan)
- Power and Industrial Systems Research and Development Center, Toshiba Corporation, 8, Shinsugita-Cho, Isogo-ku, Yokohama, 235-8523 (Japan)
- Nuclear Technology Application Dept., Toshiba Nuclear Engineering Services Corporation, 8, Shinsugita-Cho, Isogo-ku, Yokohama, 235-8523 (Japan)
The 4S is a sodium-cooled small fast reactor which is reflector-controlled for operation through core lifetime about 30 years. The nuclear design method has been selected to treat neutron leakage with high accuracy. It consists of a continuous-energy Monte Carlo code, discrete ordinate transport codes and JENDL-3.3. These two types of neutronic analysis codes are used for the design in a complementary manner. The accuracy of the codes has been evaluated by analysis of benchmark critical experiments and the experimental reactor data. The measured data used for the evaluation is critical experimental data of the FCA XXIII as a physics mockup assembly of the 4S core, FCA XVI, FCA XIX, ZPR, and data of experimental reactor JOYO MK-1. Evaluated characteristics are criticality, reflector reactivity worth, power distribution, absorber reactivity worth, and sodium void worth. A multi-component bias method was applied, especially to improve the accuracy of sodium void reactivity worth. As the result, it has been confirmed that the 4S core nuclear design method provides good accuracy, and typical bias factors and their uncertainties are determined. (authors)
- Research Organization:
- American Nuclear Society, Inc., 555 N. Kensington Avenue, La Grange Park, Illinois 60526 (United States)
- OSTI ID:
- 22105655
- Resource Relation:
- Conference: PHYSOR 2012: Conference on Advances in Reactor Physics - Linking Research, Industry, and Education, Knoxville, TN (United States), 15-20 Apr 2012; Other Information: Country of input: France; 18 refs.
- Country of Publication:
- United States
- Language:
- English
Similar Records
Critical Studies for the French Fast Reactor "RAPSODIE" (ZPR-3 Assembly 44)
A Validation Study of Existing Neutronics Tools against ZPPR-21 and ZPPR-15 Critical Experiments