Effect of sputtering on self-damaged recrystallized W mirror specimens
Effect of sputtering on self-damaged recrystallized W mirror specimens
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DOI：
10.1016/j.jnucmat.2012.12.007
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发表时间：
2013-03
影响因子：
3.1
通讯作者：
V. Voitsenya;M. Balden;A. Belyaeva;V. Alimov;B. Tyburska-Püschel;A. Galuza;A. Kasilov;I. Kolenov;V. Konovalov;O. O. Skoryk-O.;S. I. Solodovchenko
中科院分区：
文献类型：
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作者：
V. Voitsenya;M. Balden;A. Belyaeva;V. Alimov;B. Tyburska-Püschel;A. Galuza;A. Kasilov;I. Kolenov;V. Konovalov;O. O. Skoryk-O.;S. I. Solodovchenko
研究了重溅射和20 MeV W ~（6+）离子模拟中子辐照对钨反射镜光学性能的影响。用能量为600 eV的Ar+离子模拟聚变等离子体中的电荷交换原子。用光学显微镜、干涉仪、反射仪和椭偏仪研究了多晶再结晶钨（晶粒尺寸20-100μm）的表面形貌和光学性质与离子注量的关系。在溅射了3.9μm厚的腐蚀层后，用电子背散射衍射和共聚焦激光扫描显微镜测定了许多单个晶粒的取向和腐蚀层的厚度。从所获得的数据得出结论，中子辐照，至少在损伤水平将实现在ITER，没有作出额外的贡献，在过程中发展的影响下的电荷交换原子。
The effect of heavy sputtering and of neutron irradiation simulated by displacement damaging with of 20MeV W6+ions on the optical properties of tungsten mirrors was studied. Ar+ions with 600eV of energy were used as imitation of charge exchange atoms ejected from fusion plasma. The ion fluence dependence of the surface topography and the optical properties of polycrystalline, recrystallized tungsten (grain size 20–100μm) were studied by optical microscopy, interferometry, reflectometry and ellipsometry. Furthermore, after sputtering in total a layer of 3.9μm in thickness, the orientation and the thickness of the eroded layer of many individual grains was determined by electron backscattering diffraction and confocal laser scanning microscopy. Concluding from the obtained data the neutron irradiation, at least at the damage level would be achieved in ITER, has not to make an additional contribution in the processes developing under impact of charge exchange atoms only.