Determination of Longitudinal Phase Space in SLAC Main Accelerator Beams

Author

Barnes, C.D. ; Decker, F.-J. ; Emma, P. ; Hogan, M.J. ; Iverson, R. ; Krejcik, P. ; Connell, C. L O ; Siemann, R. ; Walz, D. ; Clayton, C.E. ; Huang, C. ; Johnson, D.K. ; Joshi, C. ; Lu, W. ; Marsh, K.A. ; Deng, S. ; Katsouleas, T. ; Muggli, P. ; Oz, E.

Author_Institution

SLAC, Menlo Park, CA 94025 USA, cbarnes@slac.stanford.edu

fYear

2005

fDate

16-20 May 2005

Firstpage

1856

Lastpage

1858

Abstract

In the E164 Experiment at the Stanford Linear Accelerator Center (SLAC), we drive plasma wakes for electron acceleration using 28.5 GeV bunches from the main accelerator. These bunches can now be made with an RMS length of 12 microns, and accurate direct measurement of their lengths is not feasible shot by shot. Instead, we use an indirect technique, measuring the energy spectrum at the end of the linac and comparing with detailed simulations of the entire machine. We simulate with LiTrack, a 2D particle tracking code developed at SLAC. Understanding the longitudinal profile allows a better understanding of acceleration in the plasma wake, as well as investigation of related effects. We discuss the method and validation of our phase space determinations.

Keywords

Acceleration; Electron accelerators; Energy measurement; Length measurement; Linear accelerators; Linear particle accelerator; Particle beams; Particle tracking; Plasma accelerators; Plasma measurements;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 2005. PAC 2005. Proceedings of the

Print_ISBN

0-7803-8859-3

Type

conf

DOI

10.1109/PAC.2005.1590936

Filename

1590936