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首页> 外文期刊>Journal of Nuclear Materials: Materials Aspects of Fission and Fusion >QUANTITATIVE AMS DEPTH PROFILING OF THE HYDROGEN ISOTOPES COLLECTED IN GRAPHITE DIVERTOR AND WALL TILES OF THE TOKAMAK ASDEX-UPGRADE
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QUANTITATIVE AMS DEPTH PROFILING OF THE HYDROGEN ISOTOPES COLLECTED IN GRAPHITE DIVERTOR AND WALL TILES OF THE TOKAMAK ASDEX-UPGRADE

机译：托卡马克ASDEX升级管的石墨分流器和墙瓦中收集的氢同位素的定量AMS深度分布。

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The accelerator mass spectrometry (AMS) facility at the 3 MV Tandetron in Rossendorf has been applied for quantitative depth profiling of deuterium and tritium in samples cut from graphite protection tiles at the vessel walls of the fusion experiment ASDEX-Upgrade at the Max-Planck-Institut fur Plasmaphysik in Garching. The tritium originates from D(d,p)T fusion reactions in the plasma and it is implanted in the vessel walls together with deuterium atoms and ions from the plasma. The T concentrations in the surface layers down to the analyzing depth of about 25 mu m are in the range of 10(11) to 5 x 10(15) T-atoms/cm(3) corresponding to a tritium retention of 3 x 10(10) to 3.5 x 10(12) T-atoms/cm(2). The much higher deuterium concentrations in the samples were simultaneously measured by calibrated conventional SIMS. In the surface layers down to the analyzing depth of about 25 mu m the deuterium concentrations are between 3 x 10(18) and 8 x 10(21) atoms/cm(3), corresponding to a deuterium retention of 2.5 x 10(16) to 2.5 x 10(18) atoms/cm(2) The estimated total amount of tritium in the vessel walls is of the same order of magnitude as the total number of neutrons produced in D(d,n)He-3 reactions. (C) 1997 Elsevier Science B.V. [References: 46]
机译：位于罗森多夫3 MV Tandetron的加速器质谱（AMS）设施已用于在融合实验ASDEX-Upgrade在Max-Planck-2000上从石墨保护砖切割的样品中进行氘和tri的定量深度分析。在Garching设置毛皮血浆处理机。 from源自血浆中的D（d，p）T融合反应，and与来自血浆的氘原子和离子一起植入血管壁。直到分析深度约25μm的表面层中的T浓度在10（11）至5 x 10（15）T原子/ cm（3）的范围内，对应于retention保留3 x 10 （10）至3.5 x 10（12）个T原子/ cm（2）。通过校准的常规SIMS同时测量了样品中更高的氘浓度。在分析深度约25微米的表层中，氘浓度在3 x 10（18）和8 x 10（21）原子/ cm（3）之间，相当于氘的保留量为2.5 x 10（16） ）到2.5 x 10（18）原子/ cm（2），估计容器壁中t的总量与D（d，n）He-3反应中产生的中子总数相同数量级。 （C）1997 Elsevier Science B.V. [参考：46]

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