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Photocathode Physics for Photoinjectors 2018

15–17 Oct 2018
Hilton-Buffalo Thunder
US/Mountain timezone

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Session

Session 7

Session 7
16 Oct 2018, 14:00
Pueblo Conference Room A (Hilton-Buffalo Thunder)

Pueblo Conference Room A

Hilton-Buffalo Thunder

20 Buffalo Thunder Trail Santa Fe, NM, USA 87506

Conveners

Session 7: Operations and Demonstrations: Normal conducting structures

  • Theodore Vecchione (SLAC National Accelerator Laboratory)

Presentation materials

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  1. 40. Space-charge dominated photoemission in the photocathode RF gun at PITZ
    Dr Ye Chen (DESY)
    16/10/2018, 14:00
    Session 7: Operations and Demonstrations: Normal conducting

    The Photo Injector Test facility at DESY in Zeuthen (PITZ) was built to develop and optimize high brightness electron sources for short wavelength, SC linac driven free electron lasers like FLASH and the European XFEL. High quantum-efficiency Cs2Te photocathodes are driven by a UV laser to produce up to 5 nC charge per single electron bunch in the PITZ gun. Experimental characterization of the...

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  2. 41. A new photocathode R&D program at the Argonne Wakefield Accelerator facility: photocathode fabrication chamber and higher-power testing with a 1.3 GHz NCRF injector test stand
    Dr Eric Wisniewski (Argonne National Laboratory)
    16/10/2018, 14:15
    Session 7: Operations and Demonstrations: Normal conducting

    A New Photocathode R&D program at the Argonne Wakefield Accelerator facility: photocathode fabrication chamber and high-power testing with a 1.3 GHz NCRF injector test stand abstract -> A new program is under development at the Argonne Wakefield Accelerator (AWA) facility to fabricate and test photocathodes. The goal is to provide high quality beams for the in-house structure-based wakefield...

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  3. 42. The LBNL setup for high brightness electron beams characterization and photocathode testing
    Dr Daniele Filippetto (Lawrence Berkeley Natonal Laboratory)
    16/10/2018, 14:30
    Session 7: Operations and Demonstrations: Normal conducting

    We will describe the LBNL experimental setup for high brightness beams production and measurements. The system includes an high repetition rate radiofrequency electron gun (the APEX gun), with 2 beamlines used for Ultrafast Electron Diffraction experiments, beam shaping and characterization.
    We are also developing a 30 kV testbed for testing novel photo-emitters, before the high voltage-high...

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  4. 13. Photocathodes for Swiss FEL
    Dr Romain Ganter (PSI)
    16/10/2018, 14:45
    Session 3: Application Oriented Research: FEL

    After successful tests of Cs2Te photocathodes at the SwissFEL Test Injector Facility (SITF) in 2014, decision was made to use these types of semiconductor photocathodes for SwissFEL operation, rather than copper. Since SwissFEL first beam in winter 2016, only two photocathodes were used. Quantum efficiency (QE) degradation of 40 % has been observed after 6 months of operation or after 15 mC of...

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  5. 86. XFEL Facilities at Shanghi
    Dr Weishi Wan (ShanghiTech)
    16/10/2018, 15:00
    Session 7: Operations and Demonstrations: Normal conducting

    In the past decade, X-ray free electron lasers (XFEL) has seen a rapid development in China. The center of the activities is at Shanghai, led by Shanghai Institute of Applied physics (SINAP) of the Chinese Academy of Sciences (CAS). The starting point was a test facility, where state-of-the-art experiments of FEL physics have been conducted. Since then, SINAP has led the effort of successfully...

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  6. 46. The photocathode studies for normal conducting RF gun in Tsinghua University
    Jiahang Shao (Tsinghua University and Argonne National Laboratory)
    16/10/2018, 15:15
    Session 7: Operations and Demonstrations: Normal conducting

    In this talk, we will introduce our recent works in our lab on photocathode physics, including the normal conducting RF gun development, the surface roughness effects, the improved model of photoemission of semiconductors, the two photo-injector beam lines in our lab and their capabilities for the possible experiments.

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