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Measurements of the refractive index of yttrium in the 50-1300-eV energy region

机译:在50-1300-eV能量范围内的钇折射率的测量

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The first experimental results to our knowledge on the refractive index (n) over tilde = 1 - delta + ibeta of yttrium in the extreme-ultraviolet and soft x-ray energy ranges are discussed. To determine the absorptive part beta, transmittance measurements were performed on pure yttrium. films in the 50-1300-eV energy region at beamline 6.3.2 of the Advanced Light Source. The dispersive part delta was then calculated from the absorption results by means of the Kramers-Kronig transformation. Compared with prior tabulated values, the new set of data for the refractive index of yttrium is in better agreement with the sum rules and contains previously unresolved fine structure information in the regions of the M-2,(3) and M-4,(5) absorption edges, where yttrium-based multilayer mirrors operate. (C) 2002 Optical Society of America. [References: 19]
机译:讨论了我们在极紫外和软X射线能量范围内关于代数= 1-δ+钇的ibeta的折射率(n)的第一个实验结果。为了确定吸收部分β,对纯钇进行了透射率测量。在高级光源的光束线6.3.2处的50-1300-eV能量区域中拍摄胶片。然后通过吸收剂结果通过Kramers-Kronig变换来计算分散部分的增量。与先前的表格值相比,新的钇折射率数据集与总和规则更好地一致,并且包含M-2,(3)和M-4,()区域中以前未解析的精细结构信息。 5)吸收边缘,钇基多层反射镜在此工作。 (C)2002年美国眼镜学会。 [参考:19]

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