Eduard Prat (left) and Paolo Craievich in SwissFEL
Eduard Prat (left) and Paolo Craievich in SwissFEL - proud of the teamwork that has now led to a world record time-resolution in X-ray pulse measurement using electron-beam streaking. © Paul Scherrer Institute PSI/Mahir Dzambegovic
06.05.2025
•Large research facilities
•8 min

World record attosecond measurement at SwissFEL

Scientists at SwissFEL can measure X-ray pulses with attosecond time resolution.

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Excited about SLS 2.0
16.09.2024
•Large research facilities
•9 min

Excited About SLS 2.0!

Researchers tell us why they are excited about SLS 2.0 and more brilliant light for science

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In the accelerator hall of SwissFEL: (L to R) Carlo Vicario, Eduard Prat Costa, Anne L’Huillier, Christoph Bostedt and Adrian Cavalieri.
In the accelerator hall of SwissFEL: (L to R) Carlo Vicario, Eduard Prat Costa, Anne L’Huillier, Christoph Bostedt and Adrian Cavalieri.
12.09.2024
•Large research facilities
•2 min

Nobel Prize winner Anne L’Huillier visits SwissFEL

X-ray free-electron lasers could unlock the next frontier in attosecond research

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Frontend installation
© Paul Scherrer Institute/Claude Pradervand, Peter Wiegand
09.07.2024
•Large research facilities

Installation of the first two front ends for the SLS2.0 completed

At the Swiss Light Source SLS of the Paul Scherrer Institute, another important step has been taken towards the completion of the SLS 2.0 upgrade project.

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PSI Center for Accelerator Science and Engineering

The PSI Center for Accelerator Science and Engineering is responsible for the construction, operation and development of the particle accelerators at PSI. 

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Lea Caminada
•Large research facilities
•13 min

A plan for the world’s biggest machine

Particle physics

Interview with Lea Caminada, head of the High Energy Particle Physics Group at PSI, about the next potential large project at CERN.

Figure 1: Degrader from the top when retracted. The wedges, which are moved against each other with copper jaws, are clearly visible.

A more efficient degrader for proton therapy

At PSI’s Center for Proton Therapy (CPT), protons are used to treat cancerous tumours in a highly targeted way that spares healthy tissue as much as possible. This is the result of the characteristic way in which charged particles interact with matter, so that a beam of protons deposits most of its energy at a certain depth in a material depending on the energy and the composition of the material. The dedicated medical cyclotron COMET accelerates protons to an energy of 250 MeV, which then have to be "slowed down" so that the energy matches the depth of the tumour to be treated.

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