2009年10月
Reaction Rate Analyses for an Accelerator-Driven System with 14MeV Neutrons in the Kyoto University Critical Assembly
JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY
- ,
- ,
- ,
- ,
- 巻
- 46
- 号
- 10
- 開始ページ
- 965
- 終了ページ
- 972
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1080/18811248.2009.9711605
- 出版者・発行元
- TAYLOR & FRANCIS LTD
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 demonstrate apparently subcriticality dependence on the C/E values. Based on these results, further improvement is anticipated in the reaction rates obtained by both the experiments and the MCNP-4C3 calculations, as well as in the effects of subcriticality and the nuclear data on reaction rate evaluation.
- リンク情報
- ID情報
-
- DOI : 10.1080/18811248.2009.9711605
- ISSN : 0022-3131
- eISSN : 1881-1248
- CiNii Articles ID : 10025410976
- Web of Science ID : WOS:000272660700001