TY - GEN
T1 - Bunch length measurements using coherent radiation
AU - Ischebeck, Rasmus
AU - Barnes, Christopher
AU - Blumenfeld, Ian
AU - Decker, Franz Josef
AU - Hogan, Mark
AU - Iverson, Richard H.
AU - Krejcik, Patrick
AU - Siemann, Robert H.
AU - Walz, Dieter
AU - Kirby, Neil
AU - Clayton, Chris
AU - Huang, Chengkun
AU - Johnson, Devon K.
AU - Lu, Wei
AU - Marsh, Ken
AU - Deng, Suzhi
AU - Oz, Erdem
N1 - Copyright:
Copyright 2011 Elsevier B.V., All rights reserved.
PY - 2005
Y1 - 2005
N2 - The accelerating field that can be obtained in a beam-driven plasma wakefield accelerator depends on the current of the electron beam that excites the wake. In the E-167 experiment, a peak current above 10kA will be delivered at a particle energy of 28 GeV. The bunch has a length of a few ten micrometers and several methods are used to measure its longitudinal profile. Among these, autocorrelation of coherent transition radiation (CTR) is employed. The beam passes a thin metallic foil, where it emits transition radiation. For wavelengths greater than the bunch length, this transition radiation is emitted coherently. This amplifies the long-wavelength part of the spectrum. A scanning Michelson interferometer is used to autocorrelate the CTR. However, this method requires the contribution of many bunches to build an autocorrelation trace. The measurement is influenced by the transmission characteristics of the vacuum window and beam splitter. We present here an analysis of materials, as well as possible layouts for a single shot CTR autocorrelator.
AB - The accelerating field that can be obtained in a beam-driven plasma wakefield accelerator depends on the current of the electron beam that excites the wake. In the E-167 experiment, a peak current above 10kA will be delivered at a particle energy of 28 GeV. The bunch has a length of a few ten micrometers and several methods are used to measure its longitudinal profile. Among these, autocorrelation of coherent transition radiation (CTR) is employed. The beam passes a thin metallic foil, where it emits transition radiation. For wavelengths greater than the bunch length, this transition radiation is emitted coherently. This amplifies the long-wavelength part of the spectrum. A scanning Michelson interferometer is used to autocorrelate the CTR. However, this method requires the contribution of many bunches to build an autocorrelation trace. The measurement is influenced by the transmission characteristics of the vacuum window and beam splitter. We present here an analysis of materials, as well as possible layouts for a single shot CTR autocorrelator.
UR - http://www.scopus.com/inward/record.url?scp=33847038562&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33847038562&partnerID=8YFLogxK
U2 - 10.1109/PAC.2005.1591705
DO - 10.1109/PAC.2005.1591705
M3 - Conference contribution
AN - SCOPUS:33847038562
SN - 0780388593
SN - 9780780388598
T3 - Proceedings of the IEEE Particle Accelerator Conference
SP - 4027
EP - 4029
BT - Proceedings of the Particle Accelerator Conference, PAC 2005
T2 - Particle Accelerator Conference, PAC 2005
Y2 - 16 May 2005 through 20 May 2005
ER -