Phys. Rev. ST Accel. Beams 9, 092802 (2006) [6 pages]

Measurements of the transverse emittance at the FLASH injector at DESY

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F. Löhl * and S. Schreiber
Deutsches Elektronen Synchrotron (DESY), Notkestraße 85, 22607 Hamburg, Germany

M. Castellano and G. Di Pirro
INFN-Laboratori Nazionali di Frascati, Via E. Fermi,40, 00044 Frascati (Roma), Italy

L. Catani and A. Cianchi
INFN Sezione di Roma Tor Vergata, Via della Ricerca Scientifica, 1, 00133 Roma, Italy

K. Honkavaara
Hamburg University, Institut für Experimentalphysik, Luruper Chaussee 149, 22761 Hamburg, Germany

Received 17 May 2006; published 18 September 2006

The VUV and soft x-ray free electron laser FLASH (former VUV-FEL) is a user facility at DESY (Hamburg). In order to optimize the performance of the facility, an accurate characterization of the electron beam properties is essential. The transverse projected emittance, one of the important parameters characterizing the quality of an electron beam, is measured using a four monitor method with optical transition radiation monitors. A normalized rms emittance below 2 mm mrad for a 1 nC beam has been measured. In this paper we describe the experimental setup, data analysis methods, and present experimental results.


©2006 The American Physical Society

URL: http://link.aps.org/abstract/PRSTAB/v9/e092802
DOI: 10.1103/PhysRevSTAB.9.092802
PACS: 29.27.Fh

* Electronic address: florian.loehl@desy.de

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