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The deuterium inventory in ASDEX Upgrade

机译：ASDEX升级中的氘库存

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The deuterium inventory in ASDEX Upgrade was determined by quantitative ion beam analysis techniques and SIMS for different discharge campaigns between the years 2002 and 2005. ASDEX Upgrade was a carbon dominated machine during this phase. Full poloidal sections of the lower and upper divertor tile surfaces, limiter tiles, gaps between divertor tiles, gaps between inner heat shield tiles and samples from remote areas below the roof baffle and in pump ducts were analysed, thus offering an exhaustive survey of all relevant areas in ASDEX Upgrade. Deuterium is mainly trapped on plasma-exposed surfaces of inner divertor tiles, where about 70% of the retained deuterium inventory is found. About 20% of the inventory is retained at or below the divertor roof baffle, and about 10% is observed in other areas, such as the outer divertor and in gaps between tiles. The long term deuterium retention is 3-4% of the total deuterium input. The obtained results are compared with gas balance measurements, and conclusions about tritium retention in ITER are made.
机译：ASDEX升级中的氘库存是通过定量离子束分析技术和SIMS确定的，用于2002年至2005年之间的各种放电活动。ASDEX升级在此阶段是一台以碳为主的机器。分析了上部和下部偏滤器瓦表面，限位器瓦，偏滤器瓦之间的间隙，内部隔热板之间的间隙以及来自屋顶挡板下方和泵导管中的偏远地区的样品的完整极点部分，从而对所有相关方面进行了详尽的调查ASDEX升级中的区域。氘主要被捕集在内部偏滤器砖的等离子暴露表面上，在那里发现约70％的保留氘存量。大约20％的存货被保留在分流器顶板挡板处或下方，而在其他区域（如外部分流器和瓷砖之间的缝隙）中则观察到大约10％。长期氘保留量为总氘输入的3-4％。将获得的结果与气体平衡测量结果进行比较，并得出有关I在ITER中保留的结论。

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