Title :
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
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;
Conference_Titel :
Particle Accelerator Conference, 2005. PAC 2005. Proceedings of the
Print_ISBN :
0-7803-8859-3
DOI :
10.1109/PAC.2005.1590936
