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Swiss Light Source

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Swiss Light Source - SLS

The Swiss Light Source (SLS) at the Paul Scherrer Institut is a third-generation synchrotron light source. With an energy of 2.4 GeV, it provides photon beams of high brightness for research in materials science, biology and chemistry.
SLS is part of the Photon Science Division. The facility has world-leading instruments at its beamlines for unraveling the structure of proteins, for in-depth 3D imaging of matter, and for investigating how the electrons of atoms and molecules keep matter together and render it properties such as magnetism and electron conduction at zero resistance (‘superconductivity’).

  • The beamlines for protein structure determination are intensively used by pharmaceutical companies in Switzerland and abroad. SLS is also leading in the development of pixelated X-ray detectors. The company DECTRIS has been spun off from these activities.
  • In something as complex as a human being structures and processes occur on all length scales from macroscopic down to atomic dimensions. The SLS host a variety of techniques to address problems on different length scales.
  • Materials with new, functional properties are the scope of intense research, since they offer fascinating insights into fundamental interactions and hold promise for advanced technologies which is highly needed. The SLS host world-leading capability in advanced materials spectroscopy ranging from photoemission spectroscopy, over spectromicroscopy to different X-ray absorption, scattering and diffraction techniques.
  • A further focus is to provide advanced micro- and nanofabrication technologies to academic and industrial users, in particular in the area of polymer nanotechnology.

Current operation status

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Latest Scientific Highlights and News

21 November 2023
Intelligentes Glas und Musik aus der SLS

Smart glass and music from SLS

Research Using Synchrotron Light Large Research Facilities

Every year the PSI Founder Fellowship Programme supports new ideas for innovative applications with up to 150,000 Swiss francs.

Read more
17 November 2023
Excitons coupling to octahedral tilts in Pb nano-perovskites

Excitons coupling to octahedral tilts in Pb nano-perovskites

Excitons coupling to octahedral tilts in Pb nano-perovskites

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17 November 2023
Tv=60K scale on magnetization

Crystal field rules heavy fermion delocalization in SmCoIn5

Crystal field rules heavy fermion delocalization

Read more

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