Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL     2019 Impact factor 1.556

Nuclear Science and Techniques ›› 2012, Vol. 23 ›› Issue (4): 242-246 doi: 10.13538/j.1001-8042/nst.23.242-246

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Reaction rates in blanket assemblies of a fusion-fission hybrid reactor

LIU Rong ZHU Tonghua YAN Xiaosong WANG Xinhua LU Xinxin JIANG Li WANG Mei WEN Zhongwei HAN Zijie LIN Jufan YANG Yiwei   

  1. Institute of Nuclear Physics and Chemistry,Chinese Academy of Engineering Physics,Mianyang 621900,China
LIU Rong, ZHU Tonghua, YAN Xiaosong, WANG Xinhua, LU Xinxin, JIANG Li, WANG Mei, WEN Zhongwei, HAN Zijie, LIN Jufan, YANG Yiwei . Reaction rates in blanket assemblies of a fusion-fission hybrid reactor.Nuclear Science and Techniques, 2012, 23(4): 242-246     doi: 10.13538/j.1001-8042/nst.23.242-246


To validate neutronics calculation for the blanket design of fusion-fission hybrid reactor,experiments for measuring reaction rates inside two simulating assemblies are performed.Two benchmark assemblies were developed for the neutronics experiments.A D-T fusion neutron source is placed at the center of the setup.One of them consists of three layers of depleted uranium shells and two layers of polyethylene shells,and these shells are arranged alternatively.The ~(238)U capture reaction rates are measured using depleted uranium foils and an HPGe gamma spectrometer.The fission reaction rates are measured using a fission chamber coated with depleted uranium.The other assembly consists of depleted uranium and LiH shells.The tritium production rates are measured using the lithium glass scintillation detector which is placed in the LiH region of the assembly.The measured reaction rates are compared with the calculated ones predicted using MCNP code,and C/E values are obtained.

Key words: Simulating assembly, Integral experiment, Reaction rates, Fusion-fission, MCNP