Magnesium diboride coated bulk niobium: a new approach to higher acceleration gradient
文献类型：期刊论文
| 作者 | Tan, Teng1,3; Wolak, M. A.1; Xi, X. X.1; Tajima, T.2; Civale, L.2 |
| 刊名 | SCIENTIFIC REPORTS
 |
| 出版日期 | 2016-10-24 |
| 卷号 | 6页码:5 |
| ISSN号 | 2045-2322 |
| DOI | 10.1038/srep35879 |
| 英文摘要 | Bulk niobium Superconducting Radio-Frequency cavities are a leading accelerator technology. Their performance is limited by the cavity loss and maximum acceleration gradient, which are negatively affected by vortex penetration into the superconductor when the peak magnetic field at the cavity wall surface exceeds the vortex penetration field (Hvp). It has been proposed that coating the inner wall of an SRF cavity with superconducting thin films increases Hvp. In this work, we utilized Nb ellipsoid to simulate an inverse SRF cavity and investigate the effect of coating it with magnesium diboride layer on the vortex penetration field. A significant enhancement of Hvp was observed. At 2.8 K, H-vp increased from 2100 Oe for an uncoated Nb ellipsoid to 2700 Oe for a Nb ellipsoid coated with similar to 200 nm thick MgB2 thin film. This finding creates a new route towards achieving higher acceleration gradient in SRF cavity accelerator beyond the theoretical limit of bulk Nb. |
| WOS关键词 | MGB2 THIN-FILMS ; SUPERCONDUCTORS ; FIELD |
| 资助项目 | US Department of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering ; US Department of Energy[DE-SC0011616] ; Office of Naval Research[N0014-12-1-0777] ; College of Engineering, Temple University |
| WOS研究方向 | Science & Technology - Other Topics |
| 语种 | 英语 |
| WOS记录号 | WOS:000385929300001 |
| 出版者 | NATURE PUBLISHING GROUP |
| 资助机构 | US Department of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering ; US Department of Energy ; Office of Naval Research ; College of Engineering, Temple University |
| 源URL | [http://119.78.100.186/handle/113462/43492]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Civale, L. |
| 作者单位 | 1.Temple Univ, Dept Phys, Philadelphia, PA 19122 USA 2.Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA 3.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tan, Teng,Wolak, M. A.,Xi, X. X.,et al. Magnesium diboride coated bulk niobium: a new approach to higher acceleration gradient[J]. SCIENTIFIC REPORTS,2016,6:5. |
| APA | Tan, Teng,Wolak, M. A.,Xi, X. X.,Tajima, T.,&Civale, L..(2016).Magnesium diboride coated bulk niobium: a new approach to higher acceleration gradient.SCIENTIFIC REPORTS,6,5. |
| MLA | Tan, Teng,et al."Magnesium diboride coated bulk niobium: a new approach to higher acceleration gradient".SCIENTIFIC REPORTS 6(2016):5. |
入库方式： OAI收割
来源：近代物理研究所
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