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首页> 外文期刊>Fusion Science and Technology >SIMULATION OF X-RAY IRRADIATION ON OPTICS AND CHAMBER WALL MATERIALS FOR INERTIAL FUSION ENERGY
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SIMULATION OF X-RAY IRRADIATION ON OPTICS AND CHAMBER WALL MATERIALS FOR INERTIAL FUSION ENERGY

机译：光学和腔壁材料上的X射线辐照用于惰性熔融能的模拟

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We have used the ABLATOR code to analyze the effect of the x-ray emission from direct drive targets on the optics and the first wall of a conceptual laser Inertial Fusion Energy (IFE) power plant. For this purpose, the ABLATOR code has been modified to incorporate the predicted x-ray spectrum from a generic direct drive target. We have also introduced elongation calculations in ABLATOR to predict the thermal stresses in the optic and first wall materials. These results have been validated with thermal diffusion calculations, using the LLNL heat transfer and dynamic structural finite element codes Topaz3d and Dyna3d. One of the most relevant upgrades performed in the ABLATOR code consists of the possibility to accommodate multi-material simulations. This new feature allows for a more realistic modeling of typical IFE optics and first wall materials, which may have a number of different layers. Finally, we have used the XAPPER facility, at LLNL, to develop our predictive capability and validate the results. The ABLATOR code will be further modified, as necessary, to predict the effects of x-ray irradiation in both the IFE real case and our experiments on the XAPPER facility.
机译：我们已使用ABLATOR代码分析了直接驱动目标发出的X射线对概念性激光惯性聚变能量（IFE）动力装置的光学器件和第一壁的影响。为此，对ABLATOR代码进行了修改，以合并来自通用直接驱动目标的预测X射线光谱。我们还在ABLATOR中引入了伸长率计算，以预测光学材料和第一壁材料中的热应力。使用LLNL传热和动态结构有限元代码Topaz3d和Dyna3d，通过热扩散计算验证了这些结果。在ABLATOR代码中执行的最相关的升级之一就是可以容纳多种材料的仿真。此新功能允许对典型的IFE光学器件和第一壁材料进行更真实的建模，这些材料可能具有许多不同的层。最后，我们使用了LLNL的XAPPER工具来开发我们的预测能力并验证结果。必要时，将对ABLATOR代码进行进一步修改，以预测IFE实际情况和我们在XAPPER设施上进行的实验中X射线照射的影响。

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