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首页> 外文期刊>Journal of Physics, D. Applied Physics: A Europhysics Journal >The angular dependence of the backscattering coefficient for 3.0 and 5.0 keV electrons from tungsten
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The angular dependence of the backscattering coefficient for 3.0 and 5.0 keV electrons from tungsten

机译:钨对3.0和5.0 keV电子的背向散射系数的角度依赖性

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摘要

Results for the angular dependence of the backscattering coefficient (eta) for 3.0 and 5.0 keV electrons incident on a tungsten target are presented. The values of eta measured at extreme angles of incidence (alpha), namely, at 0 degrees and 60 degrees, are found to be 0.389 and 0.468 for 3.0 keV and 0.429 and 0.524 for 5.0 keV respectively. Experimental data are compared with the available theoretical and experimental results. The agreement between experiment and theory is found to be satisfactory for the low angles of incidence but deviations are observed for higher alpha values. Possible reasons for these discrepancies are pointed out and discussed. [References: 14]
机译:给出了入射在钨靶上的3.0和5.0 keV电子的反向散射系数(eta)与角度的关系的结果。发现在极端入射角α(即0度和60度)下测得的η值分别对于3.0 keV为0.389和0.468,对于5.0 keV为0.429和0.524。将实验数据与可用的理论和实验结果进行比较。实验和理论之间的一致性被发现对于低入射角是令人满意的,但是对于较高的α值则观察到偏差。指出并讨论了这些差异的可能原因。 [参考:14]

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