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 - Melkumyan, D. AU - Niemczyk, R. 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 - Overview and Prospects of Plasma Wakefield Acceleration Experiments at PITZ J2 - Proc. of IPAC2019, Melbourne, Australia, 19-24 May 2019 CY - Melbourne, Australia T2 - International Particle Accelerator Conference T3 - 10 LA - english AB - The Photo Injector Test Facility at DESY in Zeuthen (PITZ) carries out studies of beam-driven plasma wakefield acceleration (PWFA). The facility possesses a flexible photocathode laser beam shaping system and a variety of diagnostics including a high-resolution dipole spectrometer and an rf deflector which enables the observation of the longitudinal phase space of electron beams after their passage through a plasma. Two plasma sources are available: a gas discharge plasma cell and a photoionized lithium vapor plasma cell. Studies at PITZ include investigations of the self-modulation instability of long electron beams and the high transformer ratio, i.e., the ratio between the maximum accelerating field behind the drive beam and the decelerating field within the beam. This overview includes the experimental results and plans for future experiments. PB - JACoW Publishing CP - Geneva, Switzerland SP - 3612 EP - 3615 KW - plasma KW - electron KW - wakefield KW - laser KW - experiment DA - 2019/06 PY - 2019 SN - 978-3-95450-208-0 DO - DOI: 10.18429/JACoW-IPAC2019-THPGW016 UR - http://jacow.org/ipac2019/papers/thpgw016.pdf ER - 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 -