Measurement of the beam energy spread in the TTF photo-injector

descriptionPublicationkeyboard_double_arrow_right Article , Conference object 08 Jul 2004 Germany Publisher:IEEEJournal:Proceedings of the 2003 Bipolar/BiCMOS Circuits and Technology Meeting (IEEE Cat. No.03CH37440), volume 3, pages 2,074-2,076

Authors: Huening, Markus; Schlarb, H.;

doi: 10.1109/pac.2003.1288783

Measurement of the beam energy spread in the TTF photo-injector

- Summary
- Subjects
- Metrics

Abstract

At the TESLA Test Facility (TTF) linac the required high peak current for FEL operation is achieved by compressing the beam longitudinally in a magnetic chicane. The peak current after the chicane is determined by the residual energy spread of the electron bunch which is produced by an rf photo-injector. By residual energy spread we refer to the energy spread of a temporal slice of the bunch which can not be compensated by any time dependent energy modulation. To determine the energy distribution, an improved optical system has been implemented to image the beam at an OTR-station after a spectrometer dipole. In this paper the results of the beam profile measurements are presented and compared to particle tracking simulations. It is shown that the residual energy spread in the injector on in order of a few keV only, even at bunch charges of 4 nC.

Country

Germany

Related Organizations

Helmholtz Association of German Research Centres
Germany
Deutsches Elektronen-Synchrotron DESY
Germany
Fermilab
United States

Keywords

beam monitoring: beam profile, energy: width, RF system: particle source, electron positron: linear collider, beam: width, DESY TESLA Linac, free electron laser, transition radiation detector, electron: particle source, talk: Portland 2003/05/12, linear collider: proposed, photoelectron

Impact byBIP!

	selected citations These citations are derived from selected sources. This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).	1
	popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.	Average
	influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).	Average
	impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.	Average