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首页> 外文会议>International conference on the physics of reactors;PHYSOR 2010 >STATUS OF UPDATING THE CROSS SECTION LIBRARY OF THE JUELICH REACTOR DYNAMIC CODES TINTE/MGT TO ENDF-B-VII
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STATUS OF UPDATING THE CROSS SECTION LIBRARY OF THE JUELICH REACTOR DYNAMIC CODES TINTE/MGT TO ENDF-B-VII

机译：更新JUELICH反应器动态代码色度/ MGT到ENDF-B-VII的横断面库的状态

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The nuclear cross section library SPECLIB used in the Juelich reactordynamic codes TINTE and MGT are based on the 43 groups MUPO library. This paper reports on updating the cross section library to ENDF-B-VII data. The generation of transport, absorption, and fission cross section as well as the preparation of resonance tables will be described. Absorption cross sections of ~(232)Th, ~(238)U, ~(240)Pu, and ~(242)Pu in the resonance range as function of temperature and nuclide concentration were calculated with MCNP4C. First MGT simulations performed with the new ENDF-B-VII based SPECLIBN2009 libray and 43 energy groups will be presented and compared to the results obtained with the old MUPO based SPECLIBN-r04 library. First results obtained with the new library for a steady state as well as for selected transients will be presented. Deviations compared to results calculated with the old library will be discussed. It will be shown, that the new ENDF-B-VII based library influences strongly kg_(eff), but shows only negligible deviations in case of temperatures, power profiles, and neutron fluxes. With the new updated TISPEC library SPECLIBN2009 the Juelich core design program system VSOP and the Juelich reactordynamic codes TINTE/MGT are now based on the same evaluated nuclear data library ENDF-B-VII.
机译：Juelich反应堆动力学代码TINTE和MGT中使用的核截面库SPECLIB基于43组MUPO库。本文报告了将横截面库更新为ENDF-B-VII数据的情况。将描述传输，吸收和裂变截面的产生以及共振表的准备。用MCNP4C计算了在共振范围内〜（232）Th，〜（238）U，〜（240）Pu和〜（242）Pu的吸收截面随温度和核素浓度的变化。将介绍使用新的基于ENDF-B-VII的SPECLIBN2009库和43个能级进行的首次MGT模拟，并将其与使用基于MUPO的旧SPECLIBN-r04库获得的结果进行比较。将介绍使用新库获得的针对稳态以及所选瞬态的第一批结果。将讨论与旧库计算得出的结果相比的偏差。将显示，新的基于ENDF-B-VII的库对kg_（eff）的影响很大，但在温度，功率分布和中子通量的情况下，仅显示可忽略的偏差。有了新的更新的TISPEC库SPECLIBN2009，Juelich堆芯设计程序系统VSOP和Juelich反应堆动力学代码TINTE / MGT现在基于相同的评估核数据库ENDF-B-VII。

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