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首页> 外文会议>NEA No.3828; Task Force on Shielding Aspects of Accelerators, Targets and Irradiation Facilities; 20020410-12; Menlo Park,CA(US) >CODE AND DATA BENCHMARKING WITH THE NEW IAEA PHOTONUCLEAR DATA LIBRARY
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CODE AND DATA BENCHMARKING WITH THE NEW IAEA PHOTONUCLEAR DATA LIBRARY

机译：借助新的IAEA光核数据数据库进行代码和数据基准标记

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摘要

As a result of an international co-operative activity, a recommended file of photonuclear reactions of 164 isotopes became available. The formal and practical quality of these data are examined by using them for the calculation of photoneutron production in thick targets bombarded by photons and electrons. The Monte Carlo calculations are accomplished with a recent version of the MCNP code enhanced with a photonuclear capability. The energy range of our investigations is from the photonuclear threshold up to 150 MeV. In some cases, a comparison between our calculations and a new version of the MCNPX code, recently updated with the LANL photonuclear data files (12 isotopes) is established. Our results are also compared with the experimental data when available. These data include early measurements of the total neutron yields from thick targets bombarded by electrons as a function of energy, target thickness and atomic number, as well as recent measurements of ~(238)U photofission yields. We show that in general the agreement between the experimental and calculated results is satisfactory. However, a number of particular examples where this is not the case seem to exist. Most of these cases are identified.
机译：由于国际合作活动的结果，可以获得164种同位素的光核反应推荐文件。通过将这些数据用于计算被光子和电子轰击的厚靶中的光中子产生，可以检查这些数据的形式和实际质量。使用具有光核功能的MCNP代码的最新版本可以完成Monte Carlo计算。我们研究的能量范围是从光核阈值到150 MeV。在某些情况下，可以将我们的计算结果与最近使用LANL光核数据文件（12个同位素）更新的MCNPX代码的新版本进行比较。如果有的话，我们的结果也会与实验数据进行比较。这些数据包括根据能量，靶厚度和原子序数对电子轰击的厚靶的总中子产率的早期测量，以及〜（238）U光裂变产率的最新测量。我们表明，总体而言，实验结果与计算结果之间的一致性是令人满意的。但是，似乎存在许多并非如此的特定示例。这些情况大多数都已确定。

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