SwissFEL ARAMIS and ATHOS beamlines

SwissFEL has two beamlines, the hard X-ray beamline ARAMIS as well as the soft X-ray beamline ATHOS.

ATHOS-ARAMIS-3-1200px.jpg
  • hard X-ray FEL, λ=0.1-0.7 nm
  • linear polarization, variable gap, in-vacuum undulators
  • first users 2017
  • operation modes: SASE & self seeded
For the ARAMIS beamline, two experimental stations are active and one under construction, namely:

ARAMIS beamline

  1. experimental station Alvra
  2. experimental station Bernina
  3. experimental station Cristallina (under construction)


The X-ray pulses are deflected by special high precision mirrors to the different experimental stations. Every 10 ms, an X-ray pulse is generated in the ARAMIS beam line
  • soft X-ray FEL, λ=0.65-5.0 nm
  • variable polarization, Apple II undulators
  • first users 2020
  • operation modes: SASE & self seeded

Experimental Endstations in the ARAMIS Beamline

For the first run, the Alvra and Bernina endstations are available. Click on the header to reach their respective homepage.
Alvra banner.jpg

The Alvra end station of SwissFEL specializes in measuring the ultrafast dynamics of photochemical and photobiological systems using a variety of X-ray scattering and spectroscopic techniques. For the Alvra branch, the Alvra Prime chamber and Alvra Flex in-air instruments will be available with the following parameters:
General information can be found at:
Station Alvra experimental Endstations
For questions and further information about Alvra contact: Dr. Chris Milne
Bernina banner.jpg

The Bernina instrument presently provides two interchangeable platforms, the X-ray Diffractometer (XRD) equipped with a two circle detector arm, and the General Purpose Station (GPS) with a multi-purpose horizontal 2-theta arm. Both platforms/endstations can be completed with a sample platform choice of a 6 DOF heavy load goniometer, a 2-circle surface diffractometer combination plus hexapod, and a kappa arm. An additional 6 DOF robot arm can be used for flexible detector positioning.
General information can be found at: Aramis Bernina Experimental Endstations
For questions and further information about Bernina contact: Dr. Henrik Lemke