A brief overview of the different steps and reviews a Standard proposal goes through when submitted to MAX IV.

0. Communicate with beamline staff

Discuss the planned experiment with the beamline staff well in advance of submitting the proposal. This greatly increase the chances of success as any questions or issues can be cleared out before the proposal process start, where time for staff to tackle this is limited. You will find relevant contact information on each beamline page.

1. Proposal Submitted in DUO

When submitting a proposal in the Digital User Office (DUO) tool, make sure to use the right proposal form, fill in all necessary information etc.

Note: No changes are allowed after submission deadline.

2. Technical feasibility

After Call submission deadline, Beamline staff performs a technical feasibility review of all proposals, mainly making sure that:

  • The suggested experiment is technically possible to do at the beamline.
  • The requested amount of shifts are reasonable.

Obvious safety concerns are highlighted to the Experimental Safety Team at this point, but no safety review is performed until a proposal is accepted (or reserve-listed).

3. Reviewed by PAC

The MAX IV PAC (Programme Advisory Committee) review all Standard proposals, mainly focusing on:

  • Scientific excellence
  • Users track record, e.g. Experimental reports, Publications etc.


  • Missing experimental reports from any previous beamtime lead to a one point deduction in overall score.
  • MAX IV aims to have three PAC members review each proposal.

4. MAX IV Management decision

MAX IV Management makes a final decision regarding the allocation of beamtime. All users are then informed of the result through an automatic email sent out from DUO containing (amongst other things):

  • Information if proposal was accepted, placed on reserve-list or Refused.
  • Proposal score
  • Any comments from PAC review.

5. Safety review

The Experimental Safety Team will review all accepted proposals (and reserve-listed if/when they are to be scheduled) to make sure that the planned experiments are safe to perform at MAX IV and suggest mitigations in cases where risks are identified.