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Reaction Rate Analyses for an Accelerator-Driven System with 14MeV Neutrons in the Kyoto University Critical Assembly
- Source :
- Journal of Nuclear Science and Technology. 46:965-972
- Publication Year :
- 2009
- Publisher :
- Informa UK Limited, 2009.
-
Abstract
- Neutron spectrum experiments on the Accelerator-Driven System (ADS) are conducted by combining a critical assembly of a solid-moderated and solid-reflected core with a Cockcroft-Walton-type accelerator. Neutrons (14 MeV) generated from the accelerator are injected into a subcritical system and the reaction rates are measured by the foil activation method to obtain neutronic spectrum data. The numerical calculations are executed by MCNP-4C3 with JENDL-3.3 and JENDL/D-99 libraries to evaluate the reaction rates of activation foils set in the core center and at the target. In the present study, the measured and calculated (JENDL/D-99) reaction rates in all the activation foils at the target reveal around a difference of 10% in C/E values, while a bigger discrepancy between the results of the experiments and the calculations is observed in the center of the core. On the other hand, a special mention is made of the fact that the reaction rate analyses for the neutron spectrum in the subcritical systems demonst...
Details
- ISSN :
- 18811248 and 00223131
- Volume :
- 46
- Database :
- OpenAIRE
- Journal :
- Journal of Nuclear Science and Technology
- Accession number :
- edsair.doi...........50511fe718a07ad837f802ceba7f52c2