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AKBP: Arbeitskreis Beschleunigerphysik

AKBP 2: New Accelerator Concepts II

AKBP 2.8: Vortrag

Dienstag, 21. März 2017, 11:30–11:45, MOL 213

Next generation plasma cell for PWFA experiments at PITZ — •Osip Lishilin¹, Reinhard Brinkmann², Johannes Engel¹, Florian Gruener^3,4, Matthias Gross¹, Gerald Koss¹, Gregor Loisch¹, Sebastian Phillip¹, Dieter Richter⁵, Carl Schroeder⁶, Rico Schuetze¹, and Frank Stephan¹ — ¹DESY, Zeuthen, Germany — ²DESY, Hamburg, Germany — ³Universität Hamburg, Hamburg, Germany — ⁴CFEL, Hamburg, Germany — ⁵HZB, Berlin, Germany — ⁶LBNL, Berkeley, USA

The PWFA experiment at the Photo Injector Test facility at DESY, Zeuthen site (PITZ) was launched to experimentally demonstrate and study a promising phenomenon for future plasma-based accelerators and one of the major aspects of the upcoming AWAKE experiment - the self-modulation of long particle beams in plasma. Key points for the experiment are the plasma cell of novel design, the flexible photocathode laser system and well-developed diagnostics at PITZ. The plasma cell is a cross-shaped lithium heat pipe oven with inert gas buffer zones at input/output ports. An ArF ionization laser is coupled through side ports for the plasma generation. The next generation of plasma cell includes such improvements as an altered chamber geometry and a new heat pipe design. The ionization laser transport is improved in comparison to the previous setup. This contribution presents an overview of the current experimental setup, measurements of plasma density and homogeneity as well as highlights of the first experimental results.