Cathode Holder and Transfer Mechanism Design for Warm Cathode in SRF Electron Gun.

摘要

Particulate migration is a concern in the transfer mechanics for photocathode assemblies in a superconducting RF environment. These issues have been successfully addressed during this project with the design of a dust free cathode transfer mechanism that can enhance the reliability of SRF electron guns. This design is compatible with ultra-high vacuum (UHV), ionizing radiation, cryogenic surfaces, and does not generate particles at the interface between the sample holder, the transfer arm, and the final holder positioning mechanism. Computer simulations of beam line diagnostics have been put into place to understand the optimization of SRF electron guns.