Speaker
Description
In order to address the needs of the high brightness electron beam and novel cathode communities, the CYBORG (CrYogenic Brightness-Optimized Radiofrequency Gun) beamline was developed and constructed at UCLA. The primary accelerating cavity is a 1/2 cell C-band structure designed to operate at cryogenic temperatures and accelerating gradients above 100 MV/m with a removable back plate for future cathode testing. We discuss here the testing motivations as an application of high gradient RF cavities with cryogenically enabled breakdown reduction. We will further present results from dark current and relevant material physics measurements down to cryogenic temperatures. Finally, we will introduce future high gradient RF cavity applications and experiments planned to operate in excess of 200 MV/m taking advantage of the effects of cryogenic temperatures and possibly Cu alloys.
