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Recent Activities

Recent Activities. H. Loos 02/15/2011. Activities. FACET Bunch length monitor THz source NLCTA Adopt LCLS HLA LCLS A-line profile monitor improvements and bunch length measurements OTR2 COTR study & mitigation Tuning time reduction task force

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Recent Activities

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  1. Recent Activities H. Loos 02/15/2011

  2. Activities • FACET • Bunch length monitor • THz source • NLCTA • Adopt LCLS HLA • LCLS • A-line profile monitor improvements and bunch length measurements • OTR2 COTR study & mitigation • Tuning time reduction task force • New feedbacks troubleshoot & Matlab HLA upgrade • Pulse stealing beam diagnostics

  3. A-Line Experiments PR18 new screen Resolution target ~125 um vert. ~250 um hor. Smallest hor. size ~350 um Resolve double horn structure Measure < 2fs bunch length

  4. OTR2 COTR Mitigation Transmission grating + TCAV0 to study laser heater induced COTR Multiple reflections 1st order 760 nm 1st order 380 nm 0th order 760 nm laser mirror as COTR band-pass filter not successful yet

  5. Tuning Time Reduction Task Force • Minimize MD recovery and experiment switching time • Weekly meetings • Identify and improve HLA usage issues • Implement/improve event logging for HLA • Get better metric on tuning time • Improve accelerator setup reproducibility

  6. Pulse Stealing Diagnostics • Use TCAV3 1Hz event • Set data slot 2 on PAU • Tested for most PAU RF stations • Implement emittance for LTU wires with fast feedback correctors

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