Call for Proposals for Experiments at the SµS

NEXT DEADLINE for submission in DUO (call 1/2027):

  • December 1, 2026, 23:59 CET. The call is now open.

ALLOCATION PERIOD:

  • For the instruments FLAME, GIANT/MIXE, GPD, GPS, HAL-9500, VMS:  June to September 2027.
  • For LEM: June to November 15, 2027.

IMPORTANT NOTES:

  • DOLLY has become the Versatile Muon Spectrometer (VMS) after spectrometer and sample environment upgrade in 2025.
  • The 2nd call 2/2027 with deadline May 15, 2027, is for beamtime allocation October to December 2027. 
  • This second call will be open for the muSR instruments FLAME, GPD, GPS, HAL-9500. 
  • The instruments GIANT/MIXE, LEM, and VMS will not be available for call 2/2027.
  • Due to the HIMB upgrade of the HIPA facility:
    • End of operation of LEM: November 15, 2027
    • End of operation of FLAME/GPS: November 29, 2027
    • No beam will be available between January 2028 and September 2029. This means that there will be no calls for 2028 and only one call in 2029.
  • If you are not sure about the most suitable instrument for your research, necessary sample mass and sample alignment or any other experimental issue please discuss with the instrument scientists before the submission of the proposal.

Proposals have to be submitted via the DUO web interface. Please note, that the main text/description of the proposal, including figures, has to be uploaded as a pdf file, with a maximum of 3 pages and a maximum size of 4 MB.

For details about the PSI User Office, see here. 

For a description of the instruments see here.

In addition to the normal access mode (i.e. Proposals) beam time can possibly be obtained through Requests for Urgent Beam Time (see below).

1. Proposals

  • Allocation periods: see above.
  • Deadline for submission in DUO for call 1/2027: December 1, 2026, 23:59 (Swiss time, CEST).
  • Please note: this is a hard deadline - post deadline editing of proposals will be disabled. 

2. Requests for Urgent Beam Time (Director's Discretion Time)

Reserved for feasibility tests or urgent measurements on new materials. A very limited amount of beam time is reserved for urgent beam time requests. For the request of urgent beam time (typically 1 or 2 days) an informal letter containing the relevant information about the project, the sample, the requested instrument and number of necessary days may be addressed electronically at any time of a running cycle to: