IBIC2016 - List of Authors (Lutman, A.A.)

Paper	Title	Page
TUBL02	Temporal Profile Measurements of Relativistic Electron Bunch Based on Wakefield Generation
	S. Bettoni, P. Craievich, M. Pedrozzi PSI, Villigen PSI, Switzerland A.A. Lutman SLAC, Menlo Park, California, USA
	A full characterization of the beam longitudinal phase space is crucial for the optimization of the performances of Free Electron Laser facilities, which require very short bunches to reach the time resolution for experiments of physics, biology and material science. We studied a novel approach to perform time-resolved measurements of a relativistic electron bunch based on the self-transverse wakefield interaction of the beam itself passing off-axis through a dielectric-lined or corrugated waveguide. The method is passive, can reach sub-fs resolution, and does not suffer of jitter issues. The main limitation is the poor resolution at the head of the bunch. We present simulations and a proof-of-principle experiment carried out at the SwissFEL injector test facility as well.
	Slides TUBL02 [8.088 MB]
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TUPG44	Diagnoses and Controls of Single e-Pulse Extraction at LCLS-I for the ESTB Program	445
	J.C. Sheppard, T.G. Beukers, W.S. Colocho, F.-J. Decker, A.A. Lutman, B.D. McKee, T.J. Smith, M.K. Sullivan SLAC, Menlo Park, California, USA
	A pulsed magnet is used to kick single electron bunches into the SLAC A-line from the 120 Hz LCLS-1 bunch train. These single bunches are transported to the End Station Test Beam facility. It is mandated that extraction from the LCLS beam does not disturb the non-kicked pulses. An 8 mrad kick is required to extract a bunch; without compensation the following bunch experiences a 2 urad kick; with compensation this kick is reduced to about 0.1 urad which is well within the jitter level of about 0.3 urad. Electron and photon diagnostics were used to identify problems arising from eddy currents, beam feedback errors, and inadequate monitoring and control protocol. This paper discusses the efforts to diagnose, remedy, and control the pulse snatching.
DOI •	reference for this paper ※ DOI:10.18429/JACoW-IBIC2016-TUPG44
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Paper

Title

Page

TUBL02

Temporal Profile Measurements of Relativistic Electron Bunch Based on Wakefield Generation

S. Bettoni, P. Craievich, M. Pedrozzi
PSI, Villigen PSI, Switzerland
A.A. Lutman
SLAC, Menlo Park, California, USA

A full characterization of the beam longitudinal phase space is crucial for the optimization of the performances of Free Electron Laser facilities, which require very short bunches to reach the time resolution for experiments of physics, biology and material science. We studied a novel approach to perform time-resolved measurements of a relativistic electron bunch based on the self-transverse wakefield interaction of the beam itself passing off-axis through a dielectric-lined or corrugated waveguide. The method is passive, can reach sub-fs resolution, and does not suffer of jitter issues. The main limitation is the poor resolution at the head of the bunch. We present simulations and a proof-of-principle experiment carried out at the SwissFEL injector test facility as well.

Slides TUBL02 [8.088 MB]

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TUPG44

Diagnoses and Controls of Single e-Pulse Extraction at LCLS-I for the ESTB Program

445

J.C. Sheppard, T.G. Beukers, W.S. Colocho, F.-J. Decker, A.A. Lutman, B.D. McKee, T.J. Smith, M.K. Sullivan
SLAC, Menlo Park, California, USA

A pulsed magnet is used to kick single electron bunches into the SLAC A-line from the 120 Hz LCLS-1 bunch train. These single bunches are transported to the End Station Test Beam facility. It is mandated that extraction from the LCLS beam does not disturb the non-kicked pulses. An 8 mrad kick is required to extract a bunch; without compensation the following bunch experiences a 2 urad kick; with compensation this kick is reduced to about 0.1 urad which is well within the jitter level of about 0.3 urad. Electron and photon diagnostics were used to identify problems arising from eddy currents, beam feedback errors, and inadequate monitoring and control protocol. This paper discusses the efforts to diagnose, remedy, and control the pulse snatching.

DOI •

reference for this paper ※ DOI:10.18429/JACoW-IBIC2016-TUPG44

Export •

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