Emittance measurements of trapped electrons from a plasma wakefield accelerator

Author

Kirby, N. ; Berry, M. ; Blumenfeld, I. ; Decker, F.-J. ; Hogan, M.J. ; Ischebeck, R. ; Iverson, R. ; Siemann, R. ; Walz, D. ; Clayton, C.E. ; Huang, C. ; Joshi, C. ; Lu, W. ; Marsh, K.A. ; Mori, W.B. ; Zhou, M. ; Katsouleas, T.C. ; Muggli, P. ; Oz, E.

Author_Institution

SLAC, Menlo Park

fYear

2007

fDate

25-29 June 2007

Firstpage

4183

Lastpage

4185

Abstract

Recent electron beam driven plasma wakefield accelerator experiments carried out at SLAC showed trapping of plasma electrons. These trapped electrons appeared on an energy spectrometer with smaller transverse size than the beam driving the wake. A connection is made between transverse size and emittance; due to the spectrometer´s resolution, this connection allows for placing an upper limit on the trapped electron emittance. The upper limit for the lowest normalized emittance measured in the experiment is 1 mm-mrad.

Keywords

beam handling techniques; electron accelerators; electron beams; particle traps; plasma accelerators; spectrometers; wakefield accelerators; SLAC; electron beam driven plasma wakefield accelerator; emittance measurements; plasma electrons; spectrometer resolution; trapped electron emittance measurement; Acceleration; Electron beams; Electron emission; Electron traps; Focusing; Lithium; Particle beams; Plasma accelerators; Plasma measurements; Spectroscopy;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 2007. PAC. IEEE

Conference_Location

Albuquerque, NM

Print_ISBN

978-1-4244-0916-7

Type

conf

DOI

10.1109/PAC.2007.4440075

Filename

4440075