Surface Resistance of Superconductors in the Presence of a DC Magnetic Field: Frequency and Field Intensity Limits
Surface Resistance of Superconductors in the Presence of a DC Magnetic Field: Frequency and Field Intensity Limits
复制标题
存在直流磁场时超导体的表面电阻：频率和场强限制
DOI：
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发表时间：
2017
影响因子：
1.8
通讯作者：
R. Vaglio
中科院分区：
文献类型：
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作者：
S. Calatroni;R. Vaglio
我们重新审视经典的刚性磁通模型，它描述了施加的磁通量对超导体的RF表面电阻的影响，并讨论了几个极限情况下明确的配方。作为一个应用程序，我们讨论的作用，磁通量的增强表面电阻的RF加速腔基于铌，取决于它的材料特性。我们还评估了使用高温超导体进行束图像RF电流在未来的高能圆形强子对撞机，如未来的圆形对撞机正在研究在欧洲核子研究中心的条件。
We revisit the classical rigid-fluxon model which describes the effect of an applied magnetic flux on the RF surface resistance of a superconductor and discuss explicit formulations for a few limit cases. As an application, we discuss the role of magnetic flux on the enhanced surface resistance of RF accelerating cavities based on niobium, depending on its material properties. We also assess the conditions for the use of high-temperature superconductors for carrying the beam image RF currents in future high-energy circular hadron colliders such as the future circular collider being studied at CERN.