Optical design of the Athos beamlines at SwissFEL

The Paul Scherrer Institut is currently constructing Athos, its second Free Electron Laser with a photon energy range from 250 eV to 1900 eV and pulse energies up to 8 mJ. A single soft X-ray beamline is attached to the undulator section and distributes the radiation into three branches. The beamlin...

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Bibliographic Details
Main Authors: Follath, R., Flechsig, U., Wagner, U. H., Patthey, L.
Format: Conference Proceeding
Language:English
Subjects:
Free electron lasers
Optical design
Slits
Soft x rays
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Summary:The Paul Scherrer Institut is currently constructing Athos, its second Free Electron Laser with a photon energy range from 250 eV to 1900 eV and pulse energies up to 8 mJ. A single soft X-ray beamline is attached to the undulator section and distributes the radiation into three branches. The beamline design is based on a variable line space spherical grating monochromator with a grating chamber and two retractable distribution mirrors. An achromatic focusing with individual KB-mirror systems downstream of the exit slits focus the beam to the endstations. The stations can operate alternatively without interfering with each other.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.5084655