Testing and Simulation of the SRF Wafer Test Cavity for the Characterization of Superconductors and Heterostructures
MetadataShow full item record
The wafer test cavity, designed at Texas A&M University, has been constructed and tested at Thomas Jefferson National Accelerator Facility. The mode structure, quality factor and coupling methods have been investigated. The TE_(011) mode has been located at 1.886492 GHz and the quality factor has been measured from room temperature to 2K. The measured quality factor at 2.7K is found to be 3.96x10^(8). Simulations of the cavity have been performed using Comsol Multiphysics and Mathematica to demonstrate the cavities potential as a test bed for superconducting materials, such as Heterostructures. The results of the experimental measurements are incorporated into the simulations to show that a Radio Frequency magnetic field of 162 mT can be placed on a sample of superconducting material, giving 81% of the BCS critical magnetic field for niobium.
SubjectSuperconducting Radio Frequency Cavity
Comeaux, Justin (2014). Testing and Simulation of the SRF Wafer Test Cavity for the Characterization of Superconductors and Heterostructures. Master's thesis, Texas A & M University. Available electronically from