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TY - CONF AU - Kourkafas, G. AU - Asova, G. AU - Boonpornprasert, P. AU - Good, J.D. AU - Groß, M. AU - Isaev, I.I. AU - Kalantaryan, D.K. AU - Khojoyan, M. AU - Krasilnikov, M. AU - Malyutin, D. AU - Marchetti, B. AU - Melkumyan, D. AU - Otevřel, M. AU - Pathak, G. AU - Rublack, T. AU - Stephan, F. AU - Vashchenko, G. ED - Petit-Jean-Genaz, Christine ED - Arduini, Gianluigi ED - Michel, Peter ED - Schaa, Volker RW TI - Emittance Increase and Matching along the Tomography Module at PITZ J2 - Proc. of IPAC2014, Dresden, Germany, June 15-20, 2014 C1 - Dresden, Germany T2 - International Particle Accelerator Conference T3 - 5 LA - english AB - The Photo Injector Test facility at DESY, Zeuthen site (PITZ), focuses on testing, characterizing and optimizing high brightness electron sources for free electron lasers. PITZ is equipped with a number of transverse emittance measurement stations, among which is the Phase Space Tomography (PST) module. A PST measurement requires a specific transport along the tomography lattice, which ideally rotates the beam in the normalized transverse phase space by 180 degrees in equidistant steps. A preceding matching section is used to provide an injection scheme that delivers the necessary beam parameters for the design transport along the tomography lattice. The high charge density and moderate energy of the electron bunch at PITZ contribute to significant space-charge forces which lead to emittance growth and consequent mismatches of the design parameters. This article presents and evaluates measurements of the emittance increase along the matching section of a 1 nC beam at 22 MeV/c under different focusing schemes. PB - JACoW CP - Geneva, Switzerland SP - 1144 EP - 1146 KW - emittance KW - focusing KW - quadrupole KW - electron KW - lattice DA - 2014/07 PY - 2014 SN - 978-3-95450-132-8 DO - 10.18429/JACoW-IPAC2014-TUPRO051 UR - http://jacow.org/ipac2014/papers/tupro051.pdf ER -