SLS limited call for proposals II-25 is open now

After the SLS 2.0 upgrade a first limited call is open for proposals for the Debye, ADDAMS, PXIII, PolLux, and superXAS beamlines of the Swiss Light Source, SLS for a beamtime period between 17 November and 19 December 2025

Deadline for proposal submission: 20 August 2025, 12:00 noon

Please note:
This call for proposals spans a reduced beamtime from 17/11/2025 to 19/12/2025 and the exact amount of available beamtime might vary for the different beamlines. This is the first user round after the long shutdown and therefore it is important that you get before submission in contact with the beamline scientist to check about the capabilities of the beamline since technical feasibility will be an important evaluation criterium. After this limited user round, there is again a longer shutdown in Q1/Q2 of 2026 to install the second phase of beamlines. The first regular call for proposals for the first phase of beamlines is planned for Spring 2026 for beamtimes in Q3/Q4 of 2026.

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