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Dresden 2020 – scientific programme

The DPG Spring Meeting in Dresden had to be cancelled! Read more ...

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AKBP: Arbeitskreis Beschleunigerphysik

AKBP 9: Diagnostics, Control and Instrumentation

AKBP 9.4: Talk

Tuesday, March 17, 2020, 17:15–17:30, MOL 213

Status of Slice Emittance Measurements at PITZ — •Raffael Niemczyk1, Prach Boonpornprasert1, Ye Chen1, James Good1, Matthias Gross1, Holger Huck1, Igor Isaev1, Christian Koschitzki1, Mikhail Krasilnikov1, Shankar Lal1, Xiangkun Li1, Osip Lishilin1, Gregor Loisch1, David Melkumyan1, Anne Oppelt1, Houjun Qian1, Hamed Shaker1, Guan Shu1, Frank Stephan1, and Wolfgang Hillert21DESY, Zeuthen site — 2University of Hamburg

The Photo Injector Test facility at DESY in Zeuthen (PITZ) conditions and optimises high-brightness electron sources for the use at X-ray free-electron lasers (FELs). Since the lasing process occurs only on a fraction of the bunch, much smaller than the total bunch length, the slice emittance is of interest. To characterise the slice emittance, a measurement procedure was developed at PITZ, combining a single-slit scan with a transverse deflecting structure. The transportation of the beam at low energies of 20 MeV is complicated due to the high bunch charge and wide separation of the needed diagnostics devices. The slice emittance measurement setup, improving the beam transport, will be discussed. Also, problems arising from low signal-to-noise ratio during emittance measurements and possible solutions will be presented.

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