Bunch length measurements using coherent radiation

Rasmus Ischebeck; Christopher Barnes; Ian Blumenfeld; Franz Josef Decker; Mark Hogan; Richard H. Iverson; Patrick Krejcik; Robert H. Siemann; Dieter Walz; Neil Kirby; Chris Clayton; Chengkun Huang; Devon K. Johnson; Wei Lu; Ken Marsh; Suzhi Deng; Erdem Oz

doi:10.1109/PAC.2005.1591705

Bunch length measurements using coherent radiation

Rasmus Ischebeck, Christopher Barnes, Ian Blumenfeld, Franz Josef Decker, Mark Hogan, Richard H. Iverson, Patrick Krejcik, Robert H. Siemann, Dieter Walz, Neil Kirby, Chris Clayton, Chengkun Huang, Devon K. Johnson, Wei Lu, Ken Marsh, Suzhi Deng, Erdem Oz

Radiation Oncology

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

1 Scopus citations

Abstract

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.

Original language	English (US)
Title of host publication	Proceedings of the Particle Accelerator Conference, PAC 2005
Pages	4027-4029
Number of pages	3
DOIs	https://doi.org/10.1109/PAC.2005.1591705
State	Published - 2005
Event	Particle Accelerator Conference, PAC 2005 - Knoxville, TN, United States Duration: May 16 2005 → May 20 2005

Publication series

Name	Proceedings of the IEEE Particle Accelerator Conference
Volume	2005

Other

Other	Particle Accelerator Conference, PAC 2005
Country	United States
City	Knoxville, TN
Period	5/16/05 → 5/20/05

ASJC Scopus subject areas

Engineering(all)

Access to Document

10.1109/PAC.2005.1591705

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Ischebeck, R., Barnes, C., Blumenfeld, I., Decker, F. J., Hogan, M., Iverson, R. H., Krejcik, P., Siemann, R. H., Walz, D., Kirby, N., Clayton, C., Huang, C., Johnson, D. K., Lu, W., Marsh, K., Deng, S., & Oz, E. (2005). Bunch length measurements using coherent radiation. In Proceedings of the Particle Accelerator Conference, PAC 2005 (pp. 4027-4029). [1591705] (Proceedings of the IEEE Particle Accelerator Conference; Vol. 2005). https://doi.org/10.1109/PAC.2005.1591705

Bunch length measurements using coherent radiation. / Ischebeck, Rasmus; Barnes, Christopher; Blumenfeld, Ian; Decker, Franz Josef; Hogan, Mark; Iverson, Richard H.; Krejcik, Patrick; Siemann, Robert H.; Walz, Dieter; Kirby, Neil; Clayton, Chris; Huang, Chengkun; Johnson, Devon K.; Lu, Wei; Marsh, Ken; Deng, Suzhi; Oz, Erdem.

Proceedings of the Particle Accelerator Conference, PAC 2005. 2005. p. 4027-4029 1591705 (Proceedings of the IEEE Particle Accelerator Conference; Vol. 2005).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Ischebeck, R, Barnes, C, Blumenfeld, I, Decker, FJ, Hogan, M, Iverson, RH, Krejcik, P, Siemann, RH, Walz, D, Kirby, N, Clayton, C, Huang, C, Johnson, DK, Lu, W, Marsh, K, Deng, S & Oz, E 2005, Bunch length measurements using coherent radiation. in Proceedings of the Particle Accelerator Conference, PAC 2005., 1591705, Proceedings of the IEEE Particle Accelerator Conference, vol. 2005, pp. 4027-4029, Particle Accelerator Conference, PAC 2005, Knoxville, TN, United States, 5/16/05. https://doi.org/10.1109/PAC.2005.1591705

Ischebeck, Rasmus ; Barnes, Christopher ; Blumenfeld, Ian ; Decker, Franz Josef ; Hogan, Mark ; Iverson, Richard H. ; Krejcik, Patrick ; Siemann, Robert H. ; Walz, Dieter ; Kirby, Neil ; Clayton, Chris ; Huang, Chengkun ; Johnson, Devon K. ; Lu, Wei ; Marsh, Ken ; Deng, Suzhi ; Oz, Erdem. / Bunch length measurements using coherent radiation. Proceedings of the Particle Accelerator Conference, PAC 2005. 2005. pp. 4027-4029 (Proceedings of the IEEE Particle Accelerator Conference).

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abstract = "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.",

author = "Rasmus Ischebeck and Christopher Barnes and Ian Blumenfeld and Decker, {Franz Josef} and Mark Hogan and Iverson, {Richard H.} and Patrick Krejcik and Siemann, {Robert H.} and Dieter Walz and Neil Kirby and Chris Clayton and Chengkun Huang and Johnson, {Devon K.} and Wei Lu and Ken Marsh and Suzhi Deng and Erdem Oz",

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AU - Ischebeck, Rasmus

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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

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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.

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