The Effect of the Metal Oxidation on the Vacuum Chamber Impedance

The Effect of the Metal Oxidation on the Vacuum Chamber Impedance
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金属氧化对真空室阻抗的影响

DOI：
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发表时间：
2009
期刊：
影响因子：
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通讯作者：
I. Zagorodnov
I. Zagorodnov
中科院分区：
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文献类型：
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作者：
A. Tsakanian;M. Dohlus;I. Zagorodnov

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被引文献

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金属真空室内表面的氧化是一个伴随着腔体制造和表面处理的过程。这种情况改变了所有材料的电动力学性质，并因此改变了真空室的阻抗。本文给出了氧化金属真空室纵向阻抗的测量结果。采用表面阻抗匹配技术计算真空室阻抗。给出了不同氧化物和氧化厚度下的损耗因子。给出了欧洲XFEL计划中波荡器真空室的数值结果。
The oxidation of the metallic vacuum chamber internal surface is an accompanying process of the chambe r fabrication and surface treatment. This circumstanc e changes the electro dynamical properties of the w all material and as consequence the impedance of the va cuum chamber. In this paper the results of longitudinal impedance for oxidised metallic vacuum chamber is presented. The surface impedance matching technique is used to calculate the vacuum chamber impedances. The loss factor is given for various oxides and oxidation thickness. The numeric al results for the undulator vacuum chamber of European XFEL project are presented.