20th ESLS-RF Workshop

Europe/Zurich
University of Applied Sciences, Brugg/Windisch and Paul Scherrer Institut, Villigen

University of Applied Sciences, Brugg/Windisch and Paul Scherrer Institut, Villigen

Description
We are pleased to announce the yearly meeting of the RF experts of the European Synchrotron Light Sources, the 2016 ESLS-RF Workshop.
The meeting is intended to share operation experiences, discuss the status and new developments of existing light sources in Europe as well as to report on the progress of new light sources under construction.
The 20th such workshop, organized by the Paul Scherrer Institute, will be held at the new campus of the University of Applied Sciences in Brugg/Windisch, near PSI, and at the SLS in Villigen PSI on the 16th and 17th November 2016.
There is no registration cost but participation is subject to invitation.
Participants
  • Aleksandar Mitrovic
  • Angela Salom
  • Beatriz Bravo
  • Chris Christou
  • Cristina Pasotti
  • Daniela Lerch
  • Haisheng Xu
  • Hannes Stein
  • Jean-Maurice Mercier
  • Jean-Pierre POLLINA
  • Jörn Jacob
  • Kathrin Cottel
  • Lukas Stingelin
  • Marco Pedrozzi
  • Marcos Andre Gaspar
  • Marlen Bugmann
  • Massamba DIOP
  • Michel Langlois
  • Paolo Craievich
  • Patrick Marchand
  • Pawel Borowiec
  • Pengda Gu
  • Peter Hartmann
  • Piotr Tracz
  • Roger Kalt
  • Roswitha Schabardin
  • Rutambhara Yogi
  • Rüdiger Onken
  • Shivaji Pande
  • Thomas Schilcher
  • Valeriu Buznea
  • Vincenzo Ingravallo
  • Werner Sturzenegger
  • Wolfgang Anders
  • Wolfgang Tron
  • Wednesday, November 16
    • Registration Forum 5.0B15/16 (University of Applied Sciences Brugg/Windisch)

      Forum 5.0B15/16

      University of Applied Sciences Brugg/Windisch

      Convener: Marlen Bugmann (Paul Scherrer Institut)
    • Welcome to the 20th ESLS-RF Workshop Forum 5.0B15/16 (University of Applied Sciences, Brugg/Windisch)

      Forum 5.0B15/16

      University of Applied Sciences, Brugg/Windisch

      Convener: Lukas Stingelin (Paul Scherrer Institut)
      slides
    • Session 1: Contributions from BESSY & bERLinPro and DELTA Forum 5.0B15/16 (University of Applied Sciences, Brugg/Windisch)

      Forum 5.0B15/16

      University of Applied Sciences, Brugg/Windisch

      Convener: Dr Cristina Pasotti (ELETTRA)
      • 1
        Status of BESSY and bERLinPro
        The status of RF at BESSY II will be reported. First year of operation of the solid state transmitters, problems with the 3rd harmonic (Landau) cavities and vacuum problems in the cavity section. The building of bERLinPro will be finished end of his year. There will be a brief report on the status of components and problems with the 270 kW 1.3 GHz klystron.
        Speaker: Dr Wolfgang Anders (Helmholtz-Zentrum Berlin)
        Slides
      • 2
        RF Upgrade Plans at DELTA
        The 1.5 GeV storage ring Delta is currently equipped with a 40 kW klystron amplifier providing power to a single DORIS-type cavity. With the advent of a new wiggler in 2018 also the RF system will be upgraded. An overview of the upgrade and its current status is given.
        Speaker: Dr Peter Hartmann (DELTA, TU-Dortmund)
        Slides
    • 10:15 AM
      Coffee Break Forum 5.0B15/16 (University of Applied Sciences, Brugg/Windisch)

      Forum 5.0B15/16

      University of Applied Sciences, Brugg/Windisch

    • Session 2: Contributions from SOLEIL Forum 5.0B15/16 (University of Applied Sciences, Brugg/Windisch)

      Forum 5.0B15/16

      University of Applied Sciences, Brugg/Windisch

      Convener: Dr Wolfgang Anders (Helmholtz Institut Berlin)
      • 3
        Ten years of operation with the SOLEIL RF systems (experience, upgrades, R&D’s) and contributions to other projects
        We report here about the ten-year operational experience with the SOLEIL 352 MHz RF systems, their main upgrades, related developments and contributions to other projects.
        Speaker: Dr Patrick Marchand (Synchrotron SOLEIL)
      • 4
        Operational experience with the SOLEIL LINAC and status of the ThomX LINAC project
        Operational experience with the SOLEIL LINAC Status of the ThomX LINAC project
        Speaker: Mr Jean-Pierre POLLINA (Synchrotron SOLEIL)
        Slides
      • 5
        State of the art RF solid state power amplifiers
        We report here about SOLEIL experience with the 352 MHz solid state power amplifiers (SSPA’s) and its associated developments carried out in this domain. This technology, which has now reached maturity, is being adopted by many other facilities for applications ranging from 80 MHz up to 1.5 GHz. We make a (non-exhaustive) review of them.
        Speaker: Mr Massamba DIOP (Synchrotron SOLEIL)
        Slides
    • 12:30 PM
      Lunch Restaurant (University of Applied Sciences, Brugg/Windisch)

      Restaurant

      University of Applied Sciences, Brugg/Windisch

    • Session 3: Contributions from DLS, Solaris and ALBA Forum 5.0B15/16 (University of Applied Sciences, Brugg/Windisch)

      Forum 5.0B15/16

      University of Applied Sciences, Brugg/Windisch

      Convener: Dr Jörn Jacob (ESRF)
      • 6
        Status of RF at Diamond Light Source and overview of upgrade plans
        Diamond Light Source has been operating for users since 2007 and presently operates with two CESR-B cavities supporting 300mA storage ring operation. RF reliability has been good in 2016 with RF MTBF approaching 200 hours for the year to date. Details are presented of the recovery from cavity failures in 2014 and 2015, particularly the repairs of the failed cryostat modules, including the first in-house cavity repair in an on-site cleanroom. Reliability and performance upgrades carried out in the last 12 months are presented and plans are given for the future introduction of two normal conducting cavities into the storage ring to support the operation of the two superconducting cavities.
        Speaker: Dr Chris Christou (Diamond Light Source)
        Slides
      • 7
        Status of Solaris
        Solaris is a 3rd generation light source facility being built in Krakow, Poland at the Jagiellonian University Campus. The project is being accomplished in a tight collaboration with the MAX IV Laboratory in Lund, Sweden. After commissioning phase, last year was used mostly for storage ring beam optimisation nevertheless some works in the RF system have been done. The linac parameters have been fixed for stable, reproducible injection to storage ring. The 3rd order harmonic cavities with detuning plunger have been installed in storage ring and their commissioning have been started. Although the equipment is new some problems already appeared. This presentation will give a view on the recent status of RF in Solaris.
        Speaker: Mr Pawel Borowiec (National Synchrotron Radiation Centre Solaris, Jagiellonian University)
        Slides
      • 8
        Status and new developments of RF Systems of ALBA
        ALBA is a 3Gev 3rd generation synchrotron light source located in Barcelona and operating with users since May 2012. The RF system of the SR is composed of 12 IOTs, providing up to 80kW each. The power of every pair of IOTs is combined in a cavity combiner (CaCO) and transferred to each cavity (6 in overall) through a waveguide system. In this presentation we will cover RF operation statistics of last year, main operation problems and improvements of RF reliability. We will also show the last developments/upgrades of the ALBA RF Systems which includes: - Amplfiers: New 500MHz SSA amplifier for Booster - 3rd Harmonic System: Normal conducting, active third harmonic cavity with HOM dampers and SSA amplifier at 1.5GHz - RF lab operation: Cyclotron Cavity Conditioning - LLRF: Phase modulation for RF Trip compensation
        Speaker: Ms Angela Salom (CELLS)
        Slides
    • 3:00 PM
      Coffee Break Forum 5.0B15/16 (University of Applied Sciences, Brugg/Windisch)

      Forum 5.0B15/16

      University of Applied Sciences, Brugg/Windisch

    • Session 4: Contributions from ESRF, ELI and ESS Forum 5.0B15/16 (University of Applied Sciences, Brugg/Windisch)

      Forum 5.0B15/16

      University of Applied Sciences, Brugg/Windisch

      Convener: Dr Paolo Craievich (PSI)
      • 9
        Status of RF operation and RF upgrade for the future Extremely Brilliant Source at the ESRF Forum 5.0B15/16

        Forum 5.0B15/16

        University of Applied Sciences, Brugg/Windisch

        Speaker: Dr Jörn Jacob (ESRF)
        Slides
      • 10
        Coaxial tunnel roof feed through and its cooling Forum 5.0B15/16

        Forum 5.0B15/16

        University of Applied Sciences, Brugg/Windisch

        Speaker: Mr Michel Langlois (ESRF)
        Slides
      • 11
        The ELI-NP Gamma Beam System: A New Facility for Nuclear Physics Research – Current Status Forum 5.0B15/16

        Forum 5.0B15/16

        University of Applied Sciences, Brugg/Windisch

        The Gamma Beam System – the future user facility – is being built in the framework of the Extreme Light Infrastructure–Nuclear Physics (ELI-NP) project in Bucharest/Magurele, Romania. This is an advanced source of gamma rays based on Compton back-scattering. By collision of a visible laser beam and a high brightness relativistic electron beam, an intense (~1011 γ/s), brilliant γ beam (<0.5% bandwidth) with Eγ up to 19.5 MeV will be obtained. A warm RF linac operated at the C-band mode with S-band photo-injector will deliver electron beams of energy up to about 720 MeV. The photo-injector laser system will produce a sequence of trains made of 32 laser pulses at 100Hz repetition rate with a ~10ps pulse duration in the UV range. For the Interaction Points (IP) other lasers will produce pulses with energy of 0.2J, at 515nm and 3.5ps duration at a repetition rate of 100 Hz. The collision of the interaction laser pulses with the 32 electron micro-bunches every 10 ms will be ensured by an optical cavity – multi-pass re-circulator – that will recirculate 32 times each IP laser pulse. Appropriate collimators to filter out the energy spectrum and a γ-beam characterization system will be used. The Gamma Beam System will be a state-of-the-art machine, capable to produce gamma beams with extremely advanced features. It will pursue advanced applications in the field of national security, nuclear waste treatment, nuclear medicine, as well as fundamental studies in nuclear physics. Currently building construction as well as acceptance procedures of the linac system components corresponding to the gamma beam energy of minimum 1 MeV are completed (Project Stage I), and installation of accelerator is being started. The current status of the building and the RF linac for the Gamma Beam System will be presented.
        Speaker: Dr Piotr Tracz (ELI-NP/IFIN-HH)
        Slides
      • 12
        ESS RF Systems Forum 5.0B15/16

        Forum 5.0B15/16

        University of Applied Sciences, Brugg/Windisch

        Speaker: Dr Rutambhara Yogi (ESS)
    • 6:00 PM
      Dinner Restaurant Platane, ground floor (Königsfelden, Windisch)

      Restaurant Platane, ground floor

      Königsfelden, Windisch

  • Thursday, November 17
    • Welcome to PSI OSGA/EG06 (Paul Scherrer Institut East)

      OSGA/EG06

      Paul Scherrer Institut East

      slides
    • Session 5: Contributions from MAX-IV and SLS OSGA/EG06 (Paul Scherrer Institut East)

      OSGA/EG06

      Paul Scherrer Institut East

      Convener: Dr Patrick Marchand (Synchrotron SOLEIL)
      • 13
        RF operation at the SLS and status of the SLS2 proposal
        In spring several hours of accumulated down time occurred because of klystron reflected power interlock. A dozen of power glitches caused the LINAC- and storage-ring RF systems to trip. In the LINAC pulse forming network cabinet, a high voltage cable was burnt due to arcing and triggered the fire extinguishing system. Mayor maintenance tasks of this year include and refurbishment of power supplies of the klystron supply units. In summer 2016, the spare cavity was powered by the solid state amplifier and conditioned in the teststand. First tests to operate the booster cavity with the solid state amplifier were successful.The current status of the SLS upgrade proposal is presented with estimates of collective effects.
        Speaker: Dr Lukas Stingelin (Paul Scherrer Institute)
        Slides
      • 14
        Solid-state amplifier developments in PSI
        We describe the developments of our solid-state power amplifier technology in the Swiss Light Source (PSI). We will discuss about the installation, tests, control system, and test-stand system.
        Speaker: Dr Marcos Andre Gaspar (Paul Scherrer Institut)
      • 15
        Status of MAX IV Laboratory
        -MAX IV Overview -Commissioning and operational status -Ongoing and future project
        Speaker: Mr Aleksandar Mitrovic (MAX IV Laboratory)
    • 10:15 AM
      Coffee Break In front of OSGA/EG06 (Paul Scherrer Institut East)

      In front of OSGA/EG06

      Paul Scherrer Institut East

    • Photo Session in front of OSGA (Paul Scherrer Institut East)

      in front of OSGA

      Paul Scherrer Institut East

    • Session 6: Contributions from ELETTRA and from SwissFEL LLRF OSGA/EG06 (Paul Scherrer Institut East)

      OSGA/EG06

      Paul Scherrer Institut East

      Convener: Dr Peter Hartmann (DELTA, TU-Dortmund University)
      • 16
        Status of the Elettra RF plants
        Description of the 500 MHz reliability , failure statistics, servicing ...
        Speaker: Dr Vincenzo Ingravallo (Elettra - Sincrotrone Trieste)
        Slides
      • 17
        R/Q cavity measurement
        Perturbation's measurement performed on the Sesame and Indus II cavities: motivation and results.
        Speaker: Dr Cristina Pasotti (Elettra - Sincrotrone Trieste)
      • 18
        An overview of the SwissFEL LLRF system and its potential use in the SLS
        The digital LLRF system for the SwissFEL was an internal development in the years 2012-2016 and is currently being installed and commissioned in the accelerator. It covers the different accelerating frequencies from S-band to C-band up to X-band and is built up in modular units. The tight SwissFEL requirements for stability demand a LLRF system which is capable to precisely measure amplitude and phase. The developed system fulfills these needs and would therefore also come into consideration for the SLS RF stations. This presentation gives an introduction to the SwissFEL LLRF system architecture and summarizes its features and performance characterization results. A comparison with the requirements of the currently installed analog LLRF system at the SLS leads to an outlook for a rough upgrade proposal in the SLS.
        Speaker: Mr Roger Kalt (Paul Scherrer Institut)
        Slides
    • 12:00 PM
      Lunch OASE (Paul Scherrer Institut East)

      OASE

      Paul Scherrer Institut East

    • SwissFEL tour SwissFEL, Forum, SLS (Paul Scherrer Institut)

      SwissFEL, Forum, SLS

      Paul Scherrer Institut

      Distribution of the head sets

      • 19
        SwissFEL Machine Tour OSFA (Paul Scherrer Institut, East)

        OSFA

        Paul Scherrer Institut, East

        Speaker: Dr Marco Pedrozzi (Paul Scherrer Institut)
      • 20
        SwissFEL tour: Experiments OSFA (Paul Scherrer Institut East)

        OSFA

        Paul Scherrer Institut East

        Speaker: Dr Luc Patthey (Paul Scherrer Institut)
    • 2:45 PM
      Transfer to PSI Forum and Coffee Break Visitor Center Forum (Paul Scherrer Institut East)

      Visitor Center Forum

      Paul Scherrer Institut East

    • SLS Tour WSLA (Paul Scherrer Institut West, Villigen)

      WSLA

      Paul Scherrer Institut West, Villigen

      • 21
        SLS Machine Tour WSLA (Paul Scherrer Institut West)

        WSLA

        Paul Scherrer Institut West

        Speaker: Dr Lukas Stingelin (Paul Scherrer Institut)
      • 22
        SLS Beam Lines WSLA, Visitor Station (Paul Scherrer Institut West)

        WSLA, Visitor Station

        Paul Scherrer Institut West

        Speaker: Mr Stefan Mueller (Paul Scherrer Institut)