论文标题
电抛光对氮掺杂和未凝固的尼伯特表面的影响
Effect of Electropolishing on Nitrogen Doped and Undoped Niobium Surfaces
论文作者
论文摘要
发现发现氮掺杂（NB）niobium（NB）超导RF（SRF）腔的冷电抛光（EP）可改善其质量因子。为了了解EP温度对N掺杂和未掺杂的表面的影响，在烧杯中使用2/0 n-oped且经过热处理的NB样品进行了系统的EP研究。 NB样品在不同的表面温度范围为0至42＆＃61616; c。结果表明，掺杂的表面在EP期间容易受到样品温度的影响。 EP导致在掺杂样品上的表面凹痕，其中凹坑的数量密度在较高的温度下增加。将表面结果与9细胞腔的切口表面进行了比较，该腔是2/0 n掺杂并进行了抛光的表面结果。本文显示了在不同温度下电抛光的N掺杂和未凝固的NB表面的脱尾表面特征。
Cold electropolishing (EP) of a nitrogen-doped (N-doped) niobium (Nb) superconducting RF (SRF) cavity was found to improve its quality factor. In order to understand the effect of EP temperature on N-doped and undoped surfaces, a systematic EP study was conducted with 2/0 N-doped and heat-treated Nb samples in a beaker. The Nb samples were electropolished at different surface temperatures ranging from 0 to 42 C. The results showed that the doped surface was susceptible to the sample temperature during EP. EP resulted in the surface pitting on the doped samples where the number density of pits increased at a higher temperature. The surface results were compared with the surface of cutouts from a 9-cell cavity which was 2/0 N-doped and electropolished. This paper shows de-tailed surface features of the N-doped and undoped Nb surfaces electropolished at different temperatures.
