Projects
Accelerator on a Chip International Program (ACHIP)
The ACHIP collaboration, funded by the Gordon and Betty Moore foundation for a 5 year period, pursues basic R&D for a super compact accelerator on a chip, where the accelerating structure is a dielectric microstructure excited by a laser. PSI will contribute to this by providing the international collaboration with access to the high-brightness electron beams in SwissFEL, where we are planning to do a proof-of-principle demonstration of the acceleration of a relativistic beam.
Presentations
SwissFEL
> LA3NET: Topical Workshop on Beam Diagnostics in Palma, Spain, 2015-03-23:
Optical Techniques for Ultra-Short Bunches
Download Slides: PDF (with annotations: 32.6 MB), PDF (Slides only: 32.7 MB), Keynote (61.5 MB, including movie), PowerPoint (24.2 MB)
> Helmholtz-Gesellschaft: Matter and Technologies Kickoff Meeting in Hamburg, Germany, 2015-02-25:
Beam Instrumentation for Accelerators — Status and Prospects
Download Slides: PDF (with annotations) (43.8 MB), PDF (Slides only: 44 MB), Keynote (64.1 MB), PowerPoint (23.6 MB)
> 6th Hard X-Ray Workshop at DESY, 2014-05-20:
Diagnostics Developments for SwissFEL
Download Slides: PDF (32.2 MB), Keynote (79.1 MB), PowerPoint (35.4 MB)
> X-Ray Microscopy: Bridging the gap between synchrotron and micro-CT. Workshop at ETH Zürich, 2014-05-14:
SwissFEL: Methods and Opportunities.
Download Slides: PDF (4.5 MB), Keynote (60.4 MB), PowerPoint (57.7 MB)
> International Beam Instrumenation Conference in Oxford, GB (2013)
Instrumentation Activities at the SwissFEL Injector Test Facility
Download Slides: PDF (37.5 MB), Keynote (83.1 MB), PowerPoint (22.4 MB)
> SPIE Workshop on Optics and Optoelectronics in Prague, Czech Republic (2013)
Longitudinal Diagnostics for Free Electron Lasers (Invited Talk)
Download Slides: PDF (6.0 MB), Keynote (74.6 MB), PowerPoint (27.2 MB)
Transverse Profile Imager
A transverse profile monitor that images scintillation or transition radiation onto a CMOS camera. The design achieves a high resolution by observing the Snell-Descartes law of refraction in the scintillating crystal and allows for a large field of view by taking into account the Scheimpflug imaging condition. This monitor is being developed for SwissFEL. First tests at the SwissFEL Injector Test Facility demonstrate resolution and sensitivity sufficient to measure slice emittance of a 10 pC beam.
> SCS Tech-Event SwissFEL — Technologie für die Forschung von morgen in Zürich, Switzerland, 2014-10-28:
Messung und Analyse von Elektronenstrahl-Profilen
Folien herunterladen: PDF mit Anmerkungen (17.9 MB), PDF (nur Folien: 7.1 MB), Keynote (34.0 MB), PowerPoint
(19.6 MB)
> International Beam Instrumentation Conference IBIC2014 in Monterey, California 2014-09-16:
Profile Measurements in Free Electron Lasers
Download Slides: PDF with annotations (43.1 MB), PDF slides only (43.1 MB), Keynote (59.1 MB), PowerPoint (27.6 MB)
> SwissFEL Seminar at PSI, 2014-04-24:
Transverse Profile Imager — Measurements at LCLS.
Download Slides: PDF (11.2 MB), Keynote (38.7 MB), PowerPoint (21.5 MB)
> Presentation for the SwissFEL Diagnostics Review:
Screen Monitors
Download Slides: PDF (22.9 MB), Keynote (29.2 MB), PowerPoint
(7.8 MB)
> Workshop on Longitudinal Diagnostics for FELs
A Transverse Profile Imager for SwissFEL
Download Slides: PDF (23.6 MB), Keynote (63.6 MB), PowerPoint (9.5 MB)
> Microbunching Instability Workshop in Pohang, Korea
A Transverse Profile Imager for SwissFEL (Invited Talk)
Download Slides: PDF (21.1 MB), Keynote (59.4 MB), PowerPoint (9.7 MB)
> R. Ischebeck et al.
Transverse profile imager for ultrabright electron beams
Phys. Rev. ST Accel. Beams 18, 082802 (2015) 
Longitudinal Diagnostics for SwissFEL
Monitors for time-resolved measurements of the beam properties in SwissFEL: Compression monitors, Electro-optical monitors, RF deflecting structures. We have also started preparatory work on the integration of these diagnostics into a feedback system.
> SPIE Conference on Optics + Optoelectronics in Prague, Czech Republic (2013)
Longitudinal Diagnostics for Free Electron Lasers (Invited Talk)
Download Slides: PDF, 6.3 MB; Keynote, 78.2 MB; PowerPoint, 28.6 MB
>Free Electron Laser Conference in Shanghai, China (2011)
SwissFEL Longitudinal Diagnostics Response Matrix
Download Slides (PDF, 2.8 MB)
>X-Ray Science at the Femtosecond to Attosecond Frontier in Los Angeles, California (2009)
Synchronization and Longitudinal Diagnostics for XFELs (Invited Talk)
Download Slides (PDF, 13.9 MB)
> All Publications…
Media galleries: Form Factor Monitor, Electro-Optical Monitor
Profile Monitors
Wire scanners and synchrotron radiation imagers, to allow the on-line monitoring of beam parameters.
Media galleries: Wire Scanners, Synchrotron Radiation Imager
ADAQA
An accelerator data acquisition and analysis framework, initially developed for the SwissFEL Injector Test Facility. This Matlab framework allows operators to perform scan and data acquisition tasks. The toolkit has been extended for an easy access to common measurements in the accelerator.
> SwissFEL Seminar
Bolko Beutner, Helge Brands, Rasmus Ischebeck:
ADAQA — An Accelerator Data Acqisition and Analysis Framework
Download Slides: PDF (9.2 MB), Keynote (27.5 MB), PowerPoint (8.6 MB)
1. You will need a PSI account
2. Please send an e-mail to rasmus.ischebeck@psi.ch, such that I can add you to the user list
3. In a terminal, enter: svn co svn+ssh://username@savannah02.psi.ch/repos/ADAQA/ADAQA .
Loss Monitors
Loss monitors for SwissFEL will be used both for wire scanners, as well as for the machine protection system.
Loss Monitors
Download Slides: PDF (1.4 MB), Keynote (12.9 MB), PowerPoint (4.4 MB)
Terahertz Streak Camera
Together with the SwissFEL Photonics Section, we are developing a terahertz streak camera to measure the length of the X-ray pulses in SwissFEL.
Outreach
I have helped develop expositions for the Open House Days at PSI.
> PSI Open House Day 2011: Apfelschuss
Modeled after the Swiss classic of Wilhelm Tell, we presented a crossbow marksman shooting an apple. A high-speed camera was used to record a movie when the bolt hit the apple.
Video
> Guided Tours and Open House at DESY
I prepared several presentations for the Open House and for public tours at DESY.
Presentations
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Last change: 2018-05-25