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TY - CONF AU - Lishilin, O. AU - Brinkmann, R. AU - Chen, Y. AU - Good, J.D. AU - Groß, M. AU - Grüner, F.J. AU - Isaev, I.I. AU - Koschitzki, C. AU - Krasilnikov, M. AU - Loisch, G. AU - Martinez de la Ossa, A. AU - Mehrling, T.J. AU - Oppelt, A. AU - Osterhoff, J. AU - Qian, H.J. AU - Schroeder, C.B. AU - Stephan, F. ED - Boland, Mark ED - Tanaka, Hitoshi ED - Button, David ED - Dowd, Rohan ED - Schaa, Volker RW ED - Tan, Eugene TI - Self-Modulation Instability of Electron Beams in Plasma Channels of Variable Length J2 - Proc. of IPAC2019, Melbourne, Australia, 19-24 May 2019 CY - Melbourne, Australia T2 - International Particle Accelerator Conference T3 - 10 LA - english AB - The self-modulation instability (SMI) of long (in respect to the plasma wavelength) charged particle beams passing through plasma enables the use of currently existing high energy charged particle beams as drivers for plasma wakefield accelerators. At the Photo Injector Test facility at DESY in Zeuthen (PITZ) the SMI of electron beams is studied *, **. An enhanced experimental setup includes a plasma channel of variable length which allows to investigate in details the development stages of the SMI by measuring the instability growth rate and phase velocity as a function of propagation distance in the plasma. In this contribution we present the experimental setup improvements, first measurement results and supporting beam dynamics simulations. PB - JACoW Publishing CP - Geneva, Switzerland SP - 3616 EP - 3618 KW - plasma KW - wakefield KW - simulation KW - laser KW - electron DA - 2019/06 PY - 2019 SN - 978-3-95450-208-0 DO - DOI: 10.18429/JACoW-IPAC2019-THPGW017 UR - http://jacow.org/ipac2019/papers/thpgw017.pdf ER -