Publications
Publication Information
| Title | Superconducting RF Gun with High Current and the Capability to Generate Polarized Electron Beams |
| Authors | I. Petrushina, Sergey Belomestnykh, Vladimir Kazakov, Timergali Khabiboulline, Martina Martinello, Yuriy Pischalnikov, V. Yakovlev, J. Brutus, P. Inacker, Yichao Jing, Vladimir Litvinenko, J. Skaritka, Erdong Wang, Joseph Grames, Bernard Poelker, Riad Suleiman, Eric Voutier |
| JLAB number | JLAB-ACC-21-3487 |
| LANL number | (None) |
| Other number | DOE/OR/23177-5341 |
| Document Type(s) | (Meeting) |
| Category: | Electron/Positron Sources |
| Associated with EIC: | No |
| Supported by Jefferson Lab LDRD Funding: | No |
| Funding Source: | Nuclear Physics (NP) |
|
Meeting Paper compiled for IPAC21 Proceedings Proceedings of IPAC 2021 Edited By Liu Lin, John M. Byrd, Regis Neuenschwander, Renan Picoreti, Volker R. W. Schaa JACOW (2021) Page(s) 2936-2938 | |
| Publication Abstract: | High-current low-emittance CW electron beams are indispensable for nuclear and high-energy physics fixed target and collider experiments, cooling high energy hadron beams, generating CW beams of monoenergetic X-rays (in FELs) and gamma-rays (in Compton sources). Polarization of electrons in these beams provides extra value by opening a new set of observables and frequently improving the data quality. We report on the upgrade of the unique and fully functional CW SRF 1.25 MeV SRF gun, built as part of the Coherent electron Cooling (CeC) project, which has demonstrated sustained CW operation with CsK2Sb photocathodes generating electron bunches with record-low transverse emittances and record-high bunch charge exceeding 10 nC. We propose to extend the capabilities of this system to high average current of 100 milliampere in two steps: increasing the current 30-fold at each step with the goal to demonstrate reliable long-term operation of the high-current low-emittance CW SRF guns. We also propose to test polarized GaAs photocathodes in the ultra-high vacuum (UHV) environment of the SRF gun, which has never been successfully demonstrated in RF accelerators. |
| Experiment Numbers: | |
| Group: | Ctr for Injectors&Sources |
| Document: | |
| DOI: | https://doi.org/10.18429/JACoW-IPAC2021-WEPAB138 |
| Accepted Manuscript: | wepab138.pdf |
| Supporting Documents: | |
| Supporting Datasets: | |