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USE OF AN OFFSET IN ASSESSING RADIATION EMBRITTLEMENT DATA AND PREDICTIVE MODELS

机译:在评估辐射压印数据和预测模型中使用偏移

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Analyses of reactor pressure vessel (RPV) surveillance data from Charpy V-notch shift results coupled with our latest knowledge of the mechanisms of radiation embrittlement have led to new predictive correlations/models that have a strong technical underpinning. In this paper we examine how well the new CRIEPI embrittlement predicts US RPV surveillance data. Secondly, we note that within the US surveillance data sets there are indications that the data may follow the same form as the predictive models, but the data may be offset by a constant amount (either positive or negative) from the predictive values. This offset can be attributed in some cases to inadequate baseline data. In other cases, there does not appear to be a constant offset, or such an offset is hidden by data scatter. This paper also reviews the potential use of an offset adjustment and focuses on several surveillance datasets for comparisons.
机译:通过夏比V型缺口位移结果对反应堆压力容器(RPV)监视数据的分析,加上我们对辐射脆化机理的最新了解,已经产生了具有强大技术基础的新的预测相关性/模型。在本文中,我们研究了新的CRIEPI脆化预测美国RPV监视数据的能力。其次,我们注意到在美国的监视数据集中,有迹象表明数据可能遵循与预测模型相同的形式,但是数据可能与预测值相差一定的量(正值或负值)。在某些情况下,此偏移量可归因于基线数据不足。在其他情况下,似乎没有恒定的偏移量,或者这种偏移量因数据分散而被隐藏。本文还回顾了偏移量调整的潜在用途,并着重于几个监视数据集进行比较。

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