Skip to main content
  • Paul Scherrer Institut PSI
  • PSI Research, Labs & User Services

Digital User Office

  • Digital User Office
  • DE
  • EN
  • FR
Paul Scherrer Institut (PSI)
Search
Paul Scherrer Institut (PSI)

Hauptnavigation

  • Research at PSIOpen mainmenu item
    • Research Initiatives
    • Ethics and Research integrity
    • Scientific Highlights
    • Scientific Events
    • Scientific Career
    • PSI-FELLOW
    • PSI Data Policy
  • Research Divisions and LabsOpen mainmenu item
    • Overview
    • Research with Neutrons and Muons
    • Photon Science
    • Energy and Environment
    • Nuclear Energy and Safety
    • Biology and Chemistry
    • Scientific Computing, Theory and Data
    • Large Research Facilities
  • Facilities and InstrumentsOpen mainmenu item
    • Overview
    • Large Research Facilities
    • Facilities
    • PSI Facility Newsletter
  • PSI User ServicesOpen mainmenu item
    • User Office
    • Methods at the PSI User Facilities
    • Proposals for beam time
    • Proposal Deadlines
    • Data Analysis Service (PSD)
    • EU support programmes
  • New ProjectsOpen mainmenu item
    • SLS 2.0
    • IMPACT
  • DE
  • EN
  • FR

Digital User Office (mobile)

  • Digital User Office

You are here:

  1. PSI Home
  2. Labs & User Services
  3. GFA
  4. Scientific Highlights
  5. Generation and measurement of ultralow-emittance elecron beams at SwissFEL

Secondary navigation

Large Research Facilities (GFA)

  • About GFA
    • People
    • Accelerator Operation and Development
    • Electronics and Control Systems
    • Accelerator Technology
  • Operated Facilities
    • Operation Reports
  • Scientific Highlights
  • Publications
    • Publications 2022
    • Publications 2021
    • Publications 2020
    • Publications 2019
    • Publications 2018
    • Publications 2017
    • Publications 2016
    • Publications 2015
    • Publications 2014 and earlier
  • Projects
  • CHART
  • Workshops
    • Workshops and Conferences Archiv
  • GFA Events at PSI
    • Events Archive
11 December 2019

Generation and measurement of ultralow-emittance electron beams at SwissFEL

The emittance is a fundamental parameter of particle distributions accounting for the average spread of the particles’ positions and momenta. We have generated and characterized intense ultralow-emittance electron beams, setting new standards for electron linear accelerators. The measurements have been carried out at the SwissFEL accelerator of PSI. SwissFEL is one of the few X-ray free-electron lasers (FELs) worldwide, which are cutting-edge research instruments to investigate matter with resolutions at the level of atomic processes. We attribute our low emittance values to the outstanding quality of our hardware, a sophisticated and comprehensive optimization procedure, and the opportunity to measure very small emittances with precise, robust and high-resolution measurement methods. Our low-emittance electron beams give rise to a significant improvement of the FEL performance. In particular, our beams allow generating X-ray FEL radiation with much lower electron beam energies than in standard FEL facilities. This paves the way for compact and affordable facilities such as SwissFEL and beyond, potentially expanding FEL research to a much larger community of scientists.

Our results have been published in: 

E. Prat, P. Dijkstal, M. Aiba, S. Bettoni, P. Craievich, E. Ferrari, R. Ischebeck, F. Löhl, A. Malyzhenkov, G. L. Orlandi, S. Reiche, and T. Schietinger Phys. Rev. Lett. 123, 234801, 2019. DOI: https://doi.org/10.1103/PhysRevLett.123.234801(link is external)

Sidebar

PSI Scientific Reports

Archive 2006-2012. The Scientific Reports – containing accounts of research topics from all the different areas – provide an impression of the variety of subjects researched at PSI.

top

Footer

Paul Scherrer Institut

Forschungsstrasse 111
5232 Villigen PSI
Switzerland

Telephone: +41 56 310 21 11
Telefax: +41 56 310 21 99

How to find us
Contact

Visitor Centre psi forum
School Lab iLab (in German)
Center for Proton Therapy
PSI Education Centre
PSI Guest House
PSI Gastronomie (in German)
psi forum shop

Service & Support

  • Phone Book
  • User Office
  • Accelerator Status
  • PSI Publications
  • Suppliers
  • E-Billing
  • Computing
  • Safety (in German)

Career

  • Working at PSI
  • Job Opportunities
  • Training and further education
  • Career Center
  • Vocational Training (in German)
  • PSI Education Center

For the media

  • PSI in brief
  • Facts and Figures
  • Media corner
  • Media Releases
  • Social Media

Follow us: Twitter (in English) LinkedIn Youtube Facebook Instagram Issuu RSS

Footer legal

  • Imprint
  • Terms and Conditions
  • Editors' login