Impact of geometry on flux trapping and the related surface resistance in a superconducting cavity
Impact of geometry on flux trapping and the related surface resistance in a superconducting cavity
复制标题
几何形状对超导腔中通量捕获和相关表面电阻的影响
DOI：
10.1103/physrevaccelbeams.23.123101
复制
发表时间：
2020
影响因子：
1.7
通讯作者：
J. Knobloch
中科院分区：
文献类型：
--
作者：
F. Kramer;O. Kugeler;J. Köszegi;J. Knobloch
In order to minimize the surface resistance in superconducting cavities, a deeper understanding of residual resistance due to trapped magnetic flux is necessary. For that purpose, a combined temperature and magnetic field mapping system is employed to map magnetic flux trapped in a superconducting cavity, and the related increase in surface resistance. By cooling down a 1.3 GHz TESLA single cell cavity several times with externally applied static magnetic fields with different orientations with respect to the cavity, a statement can be made about how the angle between the applied magnetic field and the cavity's surface affects flux trapping, and surface resistance. For example, a significantly higher increase in surface resistance is observed when the applied magnetic field is perpendicular to the cavity's surface compared to when it is parallel.
DOI：
10.1103/physrevaccelbeams.23.023102
发表时间：
2020-02-28
影响因子：
1.7
作者：
Dhakal, P.;Ciovati, G.;Gurevich, A.
通讯作者：
Gurevich, A.