Workshop on Timing Modes for Low-emittance Storage Rings

Europe/Stockholm
Elite Hotel Ideon (Lund)

Elite Hotel Ideon

Lund

Description

Background

The MAX IV Laboratory currently under construction in Lund will provide a 3 GeV storage ring with an ultralow emittance down to 0.2 nmrad for hard x-rays and a 1.5 GeV storage ring for soft x-rays. The MAX IV design has so far only focused on multibunch operation in the storage rings with a 100 MHz RF system and passive higher harmonic cavities to damp instabilites and increase beam lifetime. The facility will also include a short-pulse beamline for timing experiments which will deliver a 100 fs x-ray pulse of spontaneous radiation from an undulator on the linear accelerator. However, the repetition rate of the short-pulse beamline is limited to about 100Hz.

A discussion about timing modes at MAX IV has been initiated by the user community. The first workshop was held in March 2014 to identify the main user needs for timing modes and timing experiments. A second meeting was organized in connection with the MAX IV User's Meeting in September 2014 (see https://indico.maxlab.lu.se/event/25/picture/21.pdf for the program). Two reports (available for download below) have been written summarizing the status of the user case, and possible accelerator solutions.

Purpose of the Workshop

This workshop is the third meeting to address timing modes at MAX IV. The purpose of this workshop is to discuss challenges and possibilities for timing modes at low-emittance storage rings and to learn from each other's experiences. Three areas of focus have been identified for the workshop:

1. Filling patterns in low-emittance storage rings

2. Resonant pulse picking (incoherent single-bunch excitation)

3. Pseudo single bunch operation (coherent single-bunch excitation)

During the workshop there will also be the possibility to visit the MAX IV construction site.

Organizers

Stacey Sorensen, Lund University, stacey.sorensen@sljus.lu.se (Contact about scientific programme)

Teresia Olsson, MAX IV & Lund University, teresia.olsson@maxlab.lu.se (Contact about practical issues)

Christian Stråhlman, MAX IV & Lund University, christian.strahlman@maxlab.lu.se

Simon C. Leemann, MAX IV, simon.leemann@maxlab.lu.se

Workshop Report

A meeting report was published in Synchrontron Radiation News after the workshop. It is available at http://www.tandfonline.com/eprint/QVNbZcTVdIjHQharVd3E/full

Reports Timing at MAX IV
Participants
  • Ake Andersson
  • Alexander Foehlisch
  • Andreas Scholl
  • Christian Stråhlman
  • Christoph Quitmann
  • Christoph Steier
  • David Robin
  • Florian Sorgenfrei
  • Francesca Curbis
  • Francis Cullinan
  • Galina Skripka
  • Hamed Tarawneh
  • jean-luc revol
  • Jesper Andersen
  • Jochen Rittmann
  • Jonas Björklund Svensson
  • Jonas Breunlin
  • Kai Tian
  • Karsten Holldack
  • Laurent Nadolski
  • Magnus Sjöström
  • Michael Borland
  • Natalia Milas
  • Nils Mårtensson
  • Peter Kuske
  • Rami Sankari
  • Sergio Zimmermann
  • Simon Leemann
  • Slawomir Kwiatkowski
  • Stacey Sörensen
  • Sverker Werin
  • Teresia Olsson
    • 09:30
      Registration and Coffee Elite Hotel Ideon

      Elite Hotel Ideon

    • 1
      Possibilites for Timing Experiments at MAX IV Elite Hotel Ideon

      Elite Hotel Ideon

      Lund

      Speaker: Prof. Stacey Sörensen (Lund University)
      Slides
    • 2
      Timing at MAX IV from the accelerator perspective Elite Hotel Ideon

      Elite Hotel Ideon

      Lund

      Speaker: Teresia Olsson (MAX IV Laboratory)
      Slides
    • 3
      Questions and Discussion Elite Hotel Ideon

      Elite Hotel Ideon

      Lund

      Speaker: Prof. Nils Mårtensson (Department of Physics and Astronomy, Uppsala University)
    • 11:30
      Lunch Elite Hotel Ideon

      Elite Hotel Ideon

      Lund

    • 4
      Studies on filling pattern optimization and passive harmonic cavities Elite Hotel Ideon

      Elite Hotel Ideon

      Lund

      Speaker: Mrs Natalia Milas (Brazilian Synchrotron Light Laboratory)
      Slides
    • 5
      Filling patterns, timing modes, and plans for PSB at SOLEIL Elite Hotel Ideon

      Elite Hotel Ideon

      Lund

      Speaker: Dr Laurent Nadolski (Synchrotron SOLEIL)
      Slides
    • 6
      Questions and Discussion Elite Hotel Ideon

      Elite Hotel Ideon

      Lund

      Speaker: Mr Christian Stråhlman (MAX IV Laboratory, Lund University)
    • 14:30
      Coffee/Fika Elite Hotel Ideon

      Elite Hotel Ideon

      Lund

    • 7
      Fill patterns with gaps and/or single bunches in storage rings equipped with passive harmonic cavities Elite Hotel Ideon

      Elite Hotel Ideon

      Lund

      Speaker: Dr Christoph Steier (Lawrence Berkeley National Laboratory)
      Slides
    • 8
      Filling patterns, timing modes, and bunch separation schemes for the BESSY VSR project Elite Hotel Ideon

      Elite Hotel Ideon

      Lund

      Speaker: Dr Peter Kuske (Helmholtz-Zentrum Berlin)
      Slides
    • 9
      Filling patterns and timing modes with passive bunch lengthening cavities in APS-U Elite Hotel Ideon

      Elite Hotel Ideon

      Lund

      Speaker: Dr Michael Borland (Argonne National Laboratory)
      Slides
    • 10
      Questions and Discussion Elite Hotel Ideon

      Elite Hotel Ideon

      Lund

      Speaker: Dr Simon Leemann (MAX IV Laboratory)
    • 18:00
      Dinner Elite Hotel Ideon

      Elite Hotel Ideon

      Lund

    • 11
      Laser-synchrotron synchronization and pump-probe experiments Elite Hotel Ideon

      Elite Hotel Ideon

      Lund

      Speaker: Dr Jochen Rittmann (Paul Scherrer Institut)
      Slides
    • 12
      Science drivers for the BESSY-VSR project Elite Hotel Ideon

      Elite Hotel Ideon

      Lund

      Speaker: Prof. Alexander Foehlisch (HZB Helmholtz-Zentrum Berlin fuer Materialien und Energie GmbH)
      Slides
    • 10:00
      Coffee/Fika Elite Hotel Ideon

      Elite Hotel Ideon

      Lund

    • 13
      Pulse Picking at BESSY-II: Resonant incoherent excitation and MHz choppers Elite Hotel Ideon

      Elite Hotel Ideon

      Lund

      Speaker: Dr Karsten Holldack (Helmholtz-Zentrum Berlin)
      Slides
    • 14
      Time resolved ESCA and PED with the new 60° ArTOF and Slicing Elite Hotel Ideon

      Elite Hotel Ideon

      Lund

      Speaker: Dr Florian Sorgenfrei (Helmholtz-Zentrum Berlin)
      Slides
    • 15
      Filling patterns at ESRF Elite Hotel Ideon

      Elite Hotel Ideon

      Lund

      Speaker: Dr jean-luc revol (esrf)
      Slides
    • 16
      Questions and Discussion Elite Hotel Ideon

      Elite Hotel Ideon

      Lund

      Speaker: Rami Sankari (MAX IV laboratory)
    • 12:00
      Lunch Elite Hotel Ideon

      Elite Hotel Ideon

      Lund

    • 17
      Pseudo-single-bunch operation at the ALS: accelerator requirements and performance Elite Hotel Ideon

      Elite Hotel Ideon

      Lund

      Speaker: David Robin (Lawrence Berkeley National Laboratory)
      Slides
    • 18
      Probing ultra-fast electron and spin dynamics using x-ray spectroscopy at kHz to MHz repetition rates Elite Hotel Ideon

      Elite Hotel Ideon

      Lund

      Speaker: Andreas Scholl (Lawrence Berkeley National Lab)
      Slides
    • 19
      The fast strip-line kicker for ALS PSB: requirements, design, and performance Elite Hotel Ideon

      Elite Hotel Ideon

      Lund

      Speaker: Mr Slawomir Kwiatkowski (LBNL)
      Slides
    • 20
      Questions and Discussion Elite Hotel Ideon

      Elite Hotel Ideon

      Lund

      Speaker: Teresia Olsson (MAX IV Laboratory)
    • 15:10
      Coffee/Fika Elite Hotel Ideon

      Elite Hotel Ideon

      Lund

    • 15:30
      Transport to MAX IV site Elite Hotel Ideon

      Elite Hotel Ideon

      Lund

    • Study Visit at the MAX IV Site MAX IV site

      MAX IV site

      Lund

    • 18:00
      Transport to hotel Elite Hotel Ideon

      Elite Hotel Ideon

      Lund

    • 21
      Small Group Discussion and Summary: Filling patterns Elite Hotel Ideon

      Elite Hotel Ideon

      Lund

      notes
    • 22
      Small Group Discussion and Summary: Pseudo Single Bunch Elite Hotel Ideon

      Elite Hotel Ideon

      Lund

      notes
    • 23
      Small Group Discussion and Summary: Pulse Picking by Resonant Excitation Elite Hotel Ideon

      Elite Hotel Ideon

      Lund

      notes
    • 10:10
      Coffee/Fika Elite Hotel Ideon

      Elite Hotel Ideon

      Lund

    • 24
      Conclusions and Summary Elite Hotel Ideon

      Elite Hotel Ideon

      Lund

      Speakers: Mr Christian Stråhlman (MAX IV Laboratory, Lund University), Prof. Stacey Sörensen (Lund University)
    • 12:00
      Lunch Elite Hotel Ideon

      Elite Hotel Ideon

      Lund