Nitrogen and oxygen-based surface treatments have revolutionized the performance of superconducting radiofrequency (SRF) cavities, enabling them to reach higher gradients and lower losses. However, the exact mechanisms by which these treatments improve cavity performance remain largely unknown. This work provides new insights into the role of nitrogen and oxygen in SRF cavity performance by...
Nb$_3$Sn SRF cavities have the potential to reduce operating and capital costs for SRF accelerators. A first-of-its-kind Nb$_3$Sn 2-cavity CEBAF-type cryomodule has been assembled and tested. The cryomodule contains two 5-cell cavities: one coated and qualified by the team at Jefferson Lab and the other by the team at Fermilab. The cryomodule, assembled and tested at Jefferson Lab, achieved 10...
The Electron Ion Collider design includes sophisticated accelerator technology to produce high energy, high luminosity collisions with polarized beams. This talk overviews some of the key technologies, including a suite of different SRF cavities for accelerating and crabbing, cryogenics system, as well as high field interaction region magnets. The talk will also describe several examples where...
