Conveners
Applications: Session 1
- Grigory Eremeev (FNAL)
The Superconducting RF (SRF) photocathode gun is a promising candidate to produce highly stable electrons for applications where a high repetition rate beam is needed. It operates in an ultrahigh Q, CW mode, and dissipates a few watts of RF power, which make it possible to achieve a 10s ppm level of beam stability by using modern RF control techniques. Euclid, in collaboration with Fermilab,...
A high-current electron source capable of generating high charge electron bunches at MHz repetition rates is currently being prototyped. The source is based on a 650-MHz single-cell superconducting cavity modify to include a reentrant cathode holder optimized to significantly enhance the electric field on the cathode surface. The electrons are produced via field emission from a...
Fermilab recently demonstrated practical accelerating gradients (~6.5 MV/m cw) on a Nb$_3$Sn SRF cavity with cryocooler conduction-cooling, without using the conventional liquid helium bath. The successful integration of this cryocooling scheme with an SRF cavity is a stepping-stone for realizing compact SRF based e-beam sources for high-throughput industrial applications of electron...
Jefferson Lab is funded by a grant from the DOE Accelerator Stewardship to demonstrate operation of an SRF cavity with a cryocooler to an accelerating gradient compatible with an electron energy gain of 1 MeV for possible use in an accelerator for environmental remediation. This presentation describes the current plan and initial test results on a 952 MHz single-cell cavity coated with Nb3Sn
A new frontier in SRF research is the use of simplified cooling methods
that will allow easier access to SRF technology for industrial applications.
At Cornell, we have developed a new conduction cooling setup that utilizes
a manufactured cryocooler to provide the necessary heat dissipation for
operation of a 2.6 GHz Nb$_3$Sn-coated SRF cavity. We report on various methods used to increase...
