Document Type

Conference Paper

Publication Date




Publication Title

NAPAC 2019: Proceedings of the North American Particle Accelerator Conference



Conference Name

4th North American Particle Accelerator Conference, September 2-6, 2019, Lansing, Michigan


Magnetized electron cooling could result in high luminosity at the proposed Jefferson Lab Electron-Ion Collider (JLEIC). In order to increase the cooling efficiency, a bunched electron beam with high bunch charge and high repetition rate is required. We generated magnetized electron beams with high bunch charge using a new compact DC high voltage photo-gun biased at -300 kV with alkali-antimonide photocathode and a commercial ultrafast laser. This contribution explores how magnetization affects space charge dominated beams as a function of magnetic field strength, gun high voltage, laser pulse width, and laser spot size.


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

Original Publication Citation

Wijethunga, S. A. K., Benesch, J. F., Delayen, J. R., Hannon, F. E., Hernandez-Garcia, C., Krafft, G. A., Mamun, M. A., Poelker, M., Suleiman, R., & Zhang, S. (2019). Space charge study of the Jefferson Lab magnetized electron beam. In Y. Yamazaki, T. Raubenheimer, A. McCausey, & V.R.W. Schaa (Eds.), NAPAC 2019: Proceedings of the North American Particle Accelerator Conference (pp. 360-362). JACoW.


0000-0002-0328-5828 (Krafft)