Document Type

Conference Paper

Publication Date




Publication Title

Proceedings of the 10th International Particle Accelerator Conference



Conference Name

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


Electron cooling of the ion beam is key to obtaining the required high luminosity of proposed electron-ion colliders. For the Jefferson Lab Electron Ion Collider, the expected luminosity of 10³⁴ 〖 cm〗⁻² s⁻¹ will be achieved through so-called ’magnetized electron cooling’, where the cooling process occurs inside a solenoid field, which will be part of the collider ring and facilitated using a circulator ring and Energy Recovery Linac (ERL). As an initial step, we generated magnetized electron beam using a new compact DC high voltage photogun biased at -300 kV employing an alkali-antimonide photocathode. This contribution presents the characterization of the magnetized electron beam (emittance variations with the magnetic field strength for different laser spot sizes) and a comparison to GPT simulations.


Copyright © 2019 by JACoW

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 author(s), the published article's title, publisher, and DOI.

Original Publication Citation

Wijethunga, S. A. K., Benesch, J., Delayen, J. R., Hannon, F. E., Krafft, G. A., Mamun, M. A., Palacios-Serrano, G., Poelker, M., Suleiman, R., & Zhang, S. (2019). Simulation study of the emittance measurements in magnetized electron beam. In M. Boland, H. Tanaka, D. Button, R. Dowd, & V.R.W. Schaa (Eds.), Proceedings of the 10th International Particle Accelerator Conference (pp. 822-825). JACoW.


0000-0002-0328-5828 (Krafft)