Document Type

Conference Paper

Publication Date




Publication Title

Proceedings of the 10th International Particle Accelerator Conference



Conference Name

10th International Particle Accelerator Conference, 19-24 May 2019, Melbourne, Australia


A high current, high charge magnetized electron beamline that has been under development for fast and efficient cooling of ion beams for the proposed Jefferson Lab Electron Ion Collider (JLEIC). In this paper, we present the latest progress over the past year that include the generation of picosecond magnetized beam bunches at average currents up to 28 mA with exceptionally long photocathode lifetime, and the demonstrations of magnetized beam with high bunch charge up to 700 pC at 10s of kHz repetition rates. Detailed studies on a stable drive laser system, long lifetime photocathode, beam magnetization effect, beam diagnostics, and a comparison between experiment and simulations will also be reported. These accomplishes marked an important step towards the essential feasibility for the JLEIC cooler design using magnetized beams.


Published by JACoW Publishing under the terms of the Creative Commons Attribution 3.0 Unported License (CC BY 3.0). Any further distribution of this work must maintain attribution to the author(s), the published article's title, publisher, and DOI.

Original Publication Citation

Zhang, S., Adderly, P.A., Benesch, J.F., Bullard, D.B., Guo, J., Hannon, F.E., Hansknecht, J., Hernandez-Garcia, C., Kazimi, R., Krafft, G.A., Mamun, M.A., Poelker, M., Suleiman, R., Tiefenback, M.G., Wang, Y.W., Delayen, J.R., Krafft, G.A., Wang, Y.W., Wijethunga, S.A.K. (2019) High current high charge magnetized and bunched electron beam from a DC photogun for JLEIC cooler. In M. Boland, H. Tanaka, D. Button, R. Dowd, V.R.W. Schaa, & E. Tan (Eds.), Proceedings of the 10th International Particle Accelerator Conference (pp. 2167-2170). JACoW.