Experiments are grouped into two classes, depending on how the results of the measurements are treated.

• Non-proprietary (academic) experiments: These are those experiments which are published in proper time in the standard scientific journals of the respective scietific commuity.

  Beamtime is allocated on the basis of proposals which are reviewed by an international committee. The selection of proposals is solely based on scientific merit. For these experiments, access to the SLS beamlines is free according to international standards.

  Users supporting the SLS in the development of beamlines or instrumentation through their own resources negotiate special conditions which are detailed in a contract between PSI and such users.

• Proprietary experiments: Experiments of this type are intended to be kept confidential and their results not published. As the PSI is a government facility, in this case, PSI offers these services for proprietary research on a full cost recovery basis. Please look here for further details.

• Please look here for further details on how to submit a proposal to the SLS.