Ellipsometric and electron spectroscopic study of degradation of optical properties in Mo mirror irradiated with deuterium and/or helium ions
Ellipsometric and electron spectroscopic study of degradation of optical properties in Mo mirror irradiated with deuterium and/or helium ions
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氘和/或氦离子辐照钼镜光学性能退化的椭偏和电子能谱研究
DOI：
10.1016/j.jnucmat.2014.12.003
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发表时间：
2015
影响因子：
3.1
通讯作者：
H. Kurata
中科院分区：
文献类型：
--
作者：
K. Ono;M. Miyamoto;S. Hasuike;T. Nakano;H. Kurata
用椭圆偏振光谱、电子能量损失谱和电子显微镜研究了氦和氘离子辐照对钼反射镜光学性能的影响。结果发现，样品的光学常数（反射率，折射率和消光系数）的值按氘，氘和氦双光束，氦辐照的顺序下降。从所观察到的消光系数估计的激光在试样中的穿透深度，以相同的顺序增加。电子能量损失谱研究的一个单独的氦气泡形成在一个没有表面粗糙度的标本清楚地表明，反射率下降，由于介电常数的变化所造成的气泡的形成，它是与光学常数的减少。这些结果和微观结构的观察表明，来自氦泡的反射率的退化是影响诊断镜与电荷交换中性粒子辐照的主要问题。
Degradation of optical properties in Mo mirrors irradiated with helium and/or deuterium ions has been studied by ellipsometric spectroscopy, electron energy loss spectroscopy, and electron microscopy. It was found that values of the optical constants (reflectivity, refractive index, and extinction coefficient) of the specimens decreased in the order of deuterium, deuterium and helium dual-beam, and helium irradiations. The penetration depth of the laser light in the specimen, estimated from the observed extinction coefficient, increased in the same order. Electron energy loss spectroscopic study on an individual helium bubble formed in a specimen without surface roughness clearly revealed that the reflectivity decreased owing to a change in the di-electric constants caused by the formation of the bubble, and it was associated with a decrease in the optical constants. These results and the microstructure observation indicate that the degradation of reflectivity originating from the helium bubble is the primary issue affecting a diagnostic mirror irradiated with charge-exchange neutral particles.
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影响因子：
3.1
作者：
S. Kajita;T. Saeki;N. Ohno;M. Tokitani;T. Hatae;W. Sakaguchi
通讯作者：
S. Kajita;T. Saeki;N. Ohno;M. Tokitani;T. Hatae;W. Sakaguchi
影响因子：
3.1
作者：
T. Sugie;S. Kasai;M. Taniguchi;M. Nagatsu;T. Nishitani
通讯作者：
T. Sugie;S. Kasai;M. Taniguchi;M. Nagatsu;T. Nishitani
ITER 的首次镜子测试：材料选择对影响光学反射率的侵蚀/沉积机制的影响
影响因子：
3.1
作者：
G. D. Temmerman;R. Pitts;V. Voitsenya;L. Marot;G. Veres;M. Maurer;P. Oelhafen
通讯作者：
P. Oelhafen
影响因子：
3.2
作者：
Haruta, M.;Kurata, H.;Isoda, S.
通讯作者：
Isoda, S.