Understanding mechanism of performance improvement in nitrogen-doped niobium superconducting radio frequency cavity

Xiaotian Fang; Jin-Su Oh; Matt Kramer; A. Romanenko; A. Grassellino; John Zasadzinski; Lin Zhou

doi:10.1080/21663831.2022.2126737

Chinese

您当前的位置：

首页 >

文章列表页 >

Understanding mechanism of performance improvement in nitrogen-doped niobium superconducting radio frequency cavity

Original Reports | 更新时间：2026-08-19

- Understanding mechanism of performance improvement in nitrogen-doped niobium superconducting radio frequency cavity
- Understanding mechanism of performance improvement in nitrogen-doped niobium superconducting radio frequency cavity
- 材料研究快报（英文） 2023年11卷第2期页码：108-116
- 作者机构：
  
  1. a Division of Materials Science and Engineering Ames National Laboratory
  2. b Fermi National Accelerator Laboratory Batavia
  3. c Department of Physics Illinois Institute of Technology Chicago
  4. a Division of Materials Science and Engineering Ames National Laboratory Ames United States
  5. d Department of Materials Science and Engineering Iowa State University
- 作者简介：
- 基金信息：
- DOI：10.1080/21663831.2022.2126737
  中图分类号：
- 网络首发：2022-09-29，
  
  纸质出版：2023
- 稿件说明：
移动端阅览
Xiaotian Fang, Jin-Su Oh, Matt Kramer, 等. Understanding mechanism of performance improvement in nitrogen-doped niobium superconducting radio frequency cavity[J]. 材料研究快报（英文）, 2023,11(2):108-116.

Xiaotian Fang, Jin-Su Oh, Matt Kramer, et al. Understanding mechanism of performance improvement in nitrogen-doped niobium superconducting radio frequency cavity[J]. Materials Research Letters, 2023, 11(2): 108-116.
Xiaotian Fang, Jin-Su Oh, Matt Kramer, 等. Understanding mechanism of performance improvement in nitrogen-doped niobium superconducting radio frequency cavity[J]. 材料研究快报（英文）, 2023,11(2):108-116. DOI： 10.1080/21663831.2022.2126737.

Xiaotian Fang, Jin-Su Oh, Matt Kramer, et al. Understanding mechanism of performance improvement in nitrogen-doped niobium superconducting radio frequency cavity[J]. Materials Research Letters, 2023, 11(2): 108-116. DOI： 10.1080/21663831.2022.2126737.

摘要

Abstract

BSTRACTNiobium superconducting radiofrequency cavities enable applications in modern accelerators and quantum computers. However

the surface resistance significantly deteriorates the cavities’ performance. Nitrogen doping surface treatment can consistently increase cavity performance by reducing surface resistance

but the improvement mechanism is not fully understood. Herein

we employed transmission electron microscopy and spectroscopy to uncover the structural and chemical differences of the Nb/air interface between the non-doped and nitrogen-doped cavities. The results indicate that nitrogen doping passivates the Nb surface by introducing a compressive stress/strain close to the Nb/air interface

which impedes the diffusion of oxygen and hydrogen atoms and reduces surface oxide thickness.

关键词

Keywords

references

浏览量

下载量

CSCD

文章被引用时，请邮件提醒。

提交

工具集

关联资源

Correlative 3D imaging of internal damage accumulation and 2D surface strain mapping during tensile straining

Dislocation mechanism of the Re-W synergistic strengthening effect in nickel-based single crystal model superalloy

Dual effect of oxide inclusions in additively manufactured nickel superalloys

A comparative tomography study on the sintering dynamics of Ti6Al4V and Ti22Al25Nb alloys

Microstructural specificity of optimal creep performance in Ni-based single crystal superalloys under 980°C-250 MPa and 1100°C-137 MPa conditions