Skip to main content
  • DE
  • EN
  • FR
Paul Scherrer Institut (PSI) Paul Scherrer Institut (PSI)
Suche
Paul Scherrer Institut (PSI) Paul Scherrer Institut (PSI)

Hauptnavigation

  • Labs & User ServicesOpen mainmenu item
    • Overview
    • Research at PSI
    • Research Divisions and Labs
    • Facilities and Instruments
    • Research Initiatives
    • PSI User Labs
    • Scientific Highlights
    • Scientific Events
    • Scientific Career
    • Useroffice
  • VisitorsOpen mainmenu item
    • Overview
    • Contact
    • How to find us
    • Public Events
    • Visitor Centre psi forum
    • Schülerlabor iLab
    • Center for Proton Therapy
  • IndustryOpen mainmenu item
    • Overview
    • Technology Transfer
    • Spin-off Companies
    • PARK innovAARE
  • Our ResearchOpen mainmenu item
    • Current topics from our research
    • Matter and Material
    • Human Health
    • Energy and Environment
    • Large Research Facilities
    • Brochures
    • Films
    • Media Corner
  • Career & Further EducationOpen mainmenu item
    • Job Opportunities
    • Personnel Policy
    • Working at PSI
    • Equal Opportunities, Diversity & Inclusion
    • Training and Further Education
    • Vocational Training
    • PSI Education Centre
    • Support Program "PSI Career Return Program"
    • PSI-FELLOW/COFUND
  • About PSIOpen mainmenu item
    • PSI in brief
    • Strategy
    • Guiding principles
    • Facts and figures
    • Organisational structure
    • Suppliers and customers
    • Customers E-Billing
    • IT and Computing
    • Safety at PSI (in German)

You are here:

  1. PSI Home
  2. Labs & User Services
  3. PSD
  4. SLS
  5. TOMCAT
  6. Beamline Information
  7. Source

Secondary navigation

TOMCAT

  • Beamline Information Expanded submenu item
    • Source
    • Beamline Optics
    • Endstations
    • Detectors
  • User Information
    • Safety
    • Technique Principles
    • Operation Schedule
    • Submitting Proposals
    • Prepare for beamtime
    • During beamtime
    • After a beamtime
    • Computing Infrastructure
  • People
  • Research
  • Industrial Services
  • Download
  • Publications
  • Scientific Highlights
  • News Archive
  • Contacts

SLS Machine parameters

Machine Parameters  
Ring energy 2.4 GeV
Ring current 400 mA

TOMCAT Source Characteristics

TOMCAT gets its X-ray photons from a 2.9 Tesla superbending magnet. This leads to a critical energy of 11.1 keV, which is much higher than the 5.4 keV of the normal bending magnets installed in the SLS ring. As a result, the flux at high energies is increased dramatically, as shown in the following figure.
View of the 2.9 Tesla superbend, installed at the X02DA port of the SLS.zoom
View of the 2.9 Tesla superbend, installed at the X02DA port of the SLS.
Superbend flux (solid line) vs. normal bend flux (dash line). The flux gain at high energies is evident.zoom
Superbend flux (solid line) vs. normal bend flux (dash line). The flux gain at high energies is evident.
The most relevant source parameters are summarized below:
Source parameters  
Magnetic Field 2.9 T
Critical Energy 11.1 keV / 0.112 nm
Electron source size (h, v) 108 μm , 38 μm (FWHM)
Electron source divergence (h, v) 256 μrad, 38 μrad (FWHM)
Photon source size (h, v) [1] 140 μm, 45 μm (FWHM)
Photon source divergence (tailored by aperture) (h, v) 2mrad (top-hat), 0.6 mrad (FWHM)

  1. G. Lovrić, P. Oberta, I. Mohacsi, M. Stampanoni, and R. Mokso, "A robust tool for photon source geometry measurements using the fractional Talbot effect". Optics Express 22, 2745 (2014). DOI: 10.1364/OE.22.002745

Sidebar

Beamlines at SLS

Get an overview of beamlines at the SLS
top

Footer

Paul Scherrer Institut

Forschungsstrasse 111
5232 Villigen PSI
Switzerland
How to find us

Imprint
Terms and Conditions

Login

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

Visitor Centre psi forum
School Lab iLab (in German)
Center for Proton Therapy

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

Quicklinks

  • Phone Book/People Search
  • Digital User Office
  • Technology transfer
  • PSI Publications
  • Computing
  • Safety (in German)
  • Job Opportunities
  • Vocational Training (in German)
  • Suppliers
  • Customers E-Billing
  • PSI Guest House
  • PSI Gastronomie (in German)

For the media

  • PSI in brief
  • Facts and Figures
  • Media Contact
  • Media Releases
  • Social Media Newsroom
  • DE
  • EN
  • FR