Nuclear reaction analysis (NRA-C) together with Rutherford backscattering spectrometry (RBS-C), both in a channeling configuration were used to study the location of deuterium (D) in irradiation-induced defects in tungsten (W) using a He probe beam. The defects were created by W ion irradiation at two different damage doses of 0.02 and 0.2 dpa and two temperatures of 290 K and 800 K. Angular scans over the 〈100〉 axial channel showed that for both 800 K irradiated samples the NRA yield peaks in the centre of the channel, where the RBS is at its minimum. For the room-temperature-irradiated samples this is only true for the low dose. For the high dose sample hardly any peak is observed. 2D channeling maps were recorded for the samples damaged to 0.02 dpa at 290 K and 0.2dpa at 800 K. They show in addition to the maximum D signal in the 〈100〉 axial channel increased intensity in a (110) planar channel where the RBS intensities are low. The software algorithm RBSADEC was used to investigate the location of the D in the lattice. A first comparison of simulation and experiment suggests that D is located close to tetrahedral sites.

中文翻译：

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首次通过沟道结构中的核反应分析研究氘在位移损坏的钨中的位置

核反应分析 (NRA-C) 与卢瑟福背散射光谱法 (RBS-C) 一起使用通道配置，使用 He 探测束研究氘 (D) 在钨 (W) 中辐照诱导缺陷中的位置。这些缺陷是由 W 离子辐照在 0.02 和 0.2 dpa 两种不同损伤剂量以及 290 K 和 800 K 两种温度下产生的。<100> 轴向通道上的角度扫描表明，对于两种 800 K 辐照样品，NRA 产量峰值在通道的中心，RBS 处于最小值。对于室温照射的样品，这仅适用于低剂量。对于高剂量样品，几乎观察不到任何峰。记录了 290 K 时损坏至 0.02 dpa 和 800 K 时损坏至 0.2 dpa 的样品的 2D 通道图。它们显示，除了 <100> 轴向通道中的最大 D 信号外，(110) 平面通道中的强度也有所增加，其中 RBS强度低。软件算法 RBSADEC 用于研究 D 在晶格中的位置。模拟和实验的第一次比较表明 D 位于四面体位置附近。