先进裂变核能的关键核数据测量和CSNS白光中子源

唐靖宇, 敬罕涛, 夏海鸿, 唐洪庆, 张闯, 周祖英, 阮锡超, 张奇玮, 杨征

唐靖宇, 敬罕涛, 夏海鸿, 唐洪庆, 张闯, 周祖英, 阮锡超, 张奇玮, 杨征. 先进裂变核能的关键核数据测量和CSNS白光中子源[J]. 原子能科学技术, 2013, 47(7): 1089-1095. DOI: 10.7538/yzk.2013.47.07.1089
引用本文: 唐靖宇, 敬罕涛, 夏海鸿, 唐洪庆, 张闯, 周祖英, 阮锡超, 张奇玮, 杨征. 先进裂变核能的关键核数据测量和CSNS白光中子源[J]. 原子能科学技术, 2013, 47(7): 1089-1095. DOI: 10.7538/yzk.2013.47.07.1089
TANG Jing-yu, JING Han-tao, XIA Hai-hong, TANG Hong-qing, ZHANG Chuang, ZHOU Zu-ying, RUAN Xi-chao, ZHANG Qi-wei, YANG Zheng. Key Nuclear Data Measurements for Advanced Fission Energy and White Neutron Source at CSNS[J]. Atomic Energy Science and Technology, 2013, 47(7): 1089-1095. DOI: 10.7538/yzk.2013.47.07.1089
Citation: TANG Jing-yu, JING Han-tao, XIA Hai-hong, TANG Hong-qing, ZHANG Chuang, ZHOU Zu-ying, RUAN Xi-chao, ZHANG Qi-wei, YANG Zheng. Key Nuclear Data Measurements for Advanced Fission Energy and White Neutron Source at CSNS[J]. Atomic Energy Science and Technology, 2013, 47(7): 1089-1095. DOI: 10.7538/yzk.2013.47.07.1089

先进裂变核能的关键核数据测量和CSNS白光中子源

Key Nuclear Data Measurements for Advanced Fission Energy and White Neutron Source at CSNS

  • 摘要: 在设计加速器驱动的次临界系统(ADS)、核废料嬗变装置及钍基熔盐堆时亟需一些关键核数据,当前核数据库受实验条件或中子能区的限制,存在核数据精度不高甚至少部分核素数据缺失的情况。本文综述了国内外相关的核数据研究和相应的白光中子源情况。基于中国散裂中子源(CSNS)的反角通道白光中子源实验终端的中子束流具有非常宽的能谱(0.01 eV~200 MeV)和很好的时间特性。模拟得到距靶80 m处的实验终端的中子注量率为9.3×106cm-2•s-1,1 eV ~ 1 MeV能量间隔内的中子数占总中子数的53%;同时,加速器运行在双束团模式或单束团模式,时间分辨率均在0.3%~0.9%之间,适合开展核数据测量。

     

    Abstract: The key nuclear data for advanced fission energy are important in designing advanced nuclear reactors and facilities for nuclear-waste transmutation. Because the present nuclear data library is limited by experimental condition and energy range, the precision of some nuclear data is low, even some nuclear data are blank. In this paper, the status of the nuclear data and white neutron sources were presented. The back streaming neutron beam at China Spallation Neutron Source (CSNS) has very wide energy spectrum (0.01 eV-200 MeV) and excellent time structure. From the simulation results, it’s obtained that the uncollimated neutron fluence rate is around 9.3×106cm-2•s-1 within the given energy range at 80 m away from the target, which accounts for about 53% of the total neutrons. The time resolution of 0.3%-0.9%, which is important for the Time-of-Flight method, can be obtained for both the parasite operation mode with two proton bunches and the dedicated operation mode with a single proton bunch. CSNS white neutron source will be a good facility for nuclear data measurement.

     

  • [1] KONING A J, DUIJVESTIJN M C, van der MARCK S C, et al. New nuclear data libraries for lead and bismuth and their impact on accelerator-driven systems design[J]. Nuclear Science and Engineering, 2007, 156(3): 357-390.
    [2] GONZ LEZ E, EMBID-SEGURA M. Detailed phase-out TRU transmutation scenarios studies based on fast neutron ADS systems[C]∥Seventh Information Exchange Meeting on Actinide and Fission Product Partitioning and Transmutation. Jeju, Korea: [s. n.], 2002: 735-747.
    [3] ALIBERTI G, PALMIOTTI G, SALVATORES M, et al. Impact of nuclear data uncertainties on transmutation of actinides in accelerator-driven assemblies[J]. Nuclear Science and Engineering, 2004, 146(1): 13-50.
    [4] GARC A-HERRANZ N, CABELLOS O, LVAREZ-VELARDE F, et al. Nuclear data requirements for the ADS conceptual design EFIT: Uncertainty and sensitivity study[J]. Annals of Nuclear Energy, 2010, 37(11): 1570-1579.
    [5] IKEDA Y. Nuclear data relevant to accelerator driven system[J]. Journal of Nuclear Science and Technology, 2002(S2): 13-18.
    [6] STANCULESCU A, TRKOV A. Technical meeting on application libraries for ADS and transmutation, INDC(NDS)-469[R].Vienna: IAEA, 2004.
    [7] CHADWICK M B, HUGHES H G, LITTLE R C, et al. Nuclear data for acceleratordriven systems[J]. Progress in Nuclear Energy, 2001, 38(1-2): 179-219.
    [8] BAUER G S. Physics and technology of spallation neutron sources[J]. Nuclear Instruments and Methods in Physics Research A, 2001, 463: 505-543.
    [9] BOHN F H, BONGARDT K, CARSUGHI F, et al. The ESS project Ⅲ, technical report, 3-89336-303-3[R]. [S. l.]: [s. n.], 2002.
    [10] 魏国辉. 中国散裂中子源输运线的物理设计和研究[D]. 北京:中国科学院高能物理研究所,2007.
    [11] FERRARI A, SALA P R, FASS A, et al. FLUKA: A multi-particle transport code, INFN/TC-05/11, SLAC-R-773[R]. Stanford: Stanford Linear Accelerator Center, Stanford University,2005.
    [12] BATTISTONI G, MURARO S, SALA P R, et al. The FLUKA code: Description and benchmarking[C]∥Proceedings of the Hadronic Shower Simulation Workshop 2006. Illinois, USA: [s.n.], 2007: 31-49.
    [13] 王芳卫,梁天骄,殷文,等. 散裂中子源靶站和中子散射谱仪的概念设计[J]. 核技术,2005,28(8):593-597.WANG Fangwei, LIANG Tianjiao, YIN Wen, et al. Conceptual design of target station and neutron scattering spectrometers for the Chinese Spallation Neutron Source[J]. Nuclear Techniques, 2005, 28(8): 593-597(in Chinese).
    [14] 王芳卫,贾学军,梁天骄,等. 散裂中子源靶站谱仪的物理设计[J]. 物理,2008,37(6):449-453.WANG Fangwei, JIA Xuejun, LIANG Tianjiao, et al. Physical design of the target station and spectrometers for a spallation neutron source[J]. Physics, 2008, 37(6): 449-453(in Chinese).
    [15] TANG J Y, WEI G H, ZHANG C. Step-like field magnets to transform beam distribution at the CSNS target[J]. Nuclear Instruments and Methods in Physics Research A, 2007, 582(2): 326-335.
    [16] JING H T, TANG J Y, TANG H Q, et al. Studies of back-streaming white neutrons at CSNS[J]. Nuclear Instruments and Methods in Physics Research A, 2010, 621(1-3): 91-96.
计量
  • 文章访问数:  521
  • HTML全文浏览量:  0
  • PDF下载量:  1528
  • 被引次数: 0
出版历程
  • 刊出日期:  2013-07-19

目录

    /

    返回文章
    返回