THE NEXT GENERATION WIMS LATTICE CODE : WIMS9
THE NEXT GENERATION WIMS LATTICE CODE : WIMS9
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下一代 WIMS 晶格代码：WIMS9
DOI：
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发表时间：
2002
期刊：
影响因子：
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通讯作者：
Dorset Dt
中科院分区：
文献类型：
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作者：
T. Newton;J. L. Hutton;Serco Assurance;Dorset Dt
WIMS8 晶格单元和燃耗代码 [1] 于 1999 年发布，并不断开发以满足用户的需求以及整个核工业日益增长的精度要求。作为该开发计划的一部分，我们进行了一系列详细研究，将确定性 WIMS 模块化代码系统的结果与使用 MONK8 代码 [2]（ANSWERS 代码套件中的配套代码）执行的蒙特卡罗计算的结果进行比较。这些相互比较使得能够识别 WIMS8 中剩余的最重要的方法近似值，特别是在共振自屏蔽处理中，并且已经开发出方法改进并将其纳入 WIMS 中，用于下一期的 WIMS9。本文描述了一系列反应堆类型的 WIMS8 和 MONK 代码相互比较的结果，以及为消除主要差异而引入的方法改进。根据这些代码和方法的开发，反应性预测的准确性在±200 pcm目标范围内，该目标设定为所有主要反应堆类型的目标，无论是否使用轻、重或混合慢化剂。还给出了 WIMS 代码方案的简要历史，并以 WIMS 验证状态的总体概述作为本文的总结。
The WIMS8 lattice cell and burnup code[1] was issued in 1999 and is continuously under development to meet the needs of its users and the increasing accuracy demands of the nuclear industry in general. As part of this development programme, a series of detailed studies have been undertaken to compare the results from the deterministic WIMS modular code system with results from Monte Carlo calculations performed using the MONK8 code[2], a companion code in the ANSWERS code suite. These inter-comparisons have allowed the identification of the most significant method approximations remaining in WIMS8, in particular, in the resonance self shielding treatment, and method improvements have been developed and incorporated in WIMS for its next issue as WIMS9. This paper describes the results from the inter-comparison of WIMS8 and the MONK code for a range of reactor types and the method improvements introduced to remove the main discrepancies. Following these code and method developments the accuracy on reactivity predictions is within the ± 200 pcm target set as an objective for all main reactor types independent of whether light, heavy or mixed moderators are utilised. A brief history of the WIMS code scheme is also given and the paper is concluded with a general overview of the validation status of WIMS.