Document Type

Conference Paper

Publication Date




Publication Title

NAPAC2022: Proceedings of the North American Particle Accelerator Conference



Conference Name

North American Particle Accelerator Conference (5th), August 7-12, 2022, Albuquerque, New Mexico


In this work, we investigated the evolution in bunch length of beams through the CEBAF injector for low to high charge per bunch. Using the General Particle Tracer (GPT), we have simulated the beams through the beamline of the CEBAF injector and analyzed the beam to get the bunch lengths at the location of chopper. We performed these simulations with the existing injector using a 130 kV gun voltage. Finally, we describe measurements to validate these simulations. The measurements have been done using chopper scanning technique for two injector laser drive frequency modes: one with 500 MHz, and another with 250 MHz.


Copyright © 2022 by JACoW

Published under the terms of the Creative Commons Attribution 4.0 International (CC BY 4.0) 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

Pokharel, S., Bruker, M. W., Grames, J. M., Hofler, A. S., Kazimi, R., Krafft, G. A., & Zhang, S. (2022). Bunch length measurements at the CEBAF Injector at 130 kV. In S. Biedron, E. Simakov, S. Milton, P.M. Anisimov, & V.R.W. Schaa (Eds.), NAPAC2022: Proceedings of the North American Particle Accelerator Conference (pp. 917-920). JACoW.


0000-0002-0328-5828 (Krafft)