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Welcome to SOLEIL users.

The 27th call for proposals (AP27) is now closed.

The beamtime allocation period is:
- for Standard proposals from March 22nd, 2021 to Mid-September, 2021.
- for 'classical' BAG proposals from March 22nd, 2021 to February 28th, 2022.
- for MX-BioSAXS BAG proposals from March 22nd, 2021 to February 28th, 2023.
Experimental Reports have to be submitted before October 30th, 2020.
Evaluation results will notified by the end of December 2020.
Last update, October 05, 2020

CoViD-19: Users schedule since October 29, 2020 French government announcements

Following the French government’s announcements, on 29/10/2020, to limit the spread of the COVID-19 epidemic, SOLEIL’s commitment is to maintain the continuity of the users schedule, in compliance with health instructions and taking into account the situation of each beamline and the operational teams of the ring.

Our priority, at this time, is to preserve the health of our staff, users and sub-contractors; at the same time as assuring user operations (academic and industrial).

Users can visit SOLEIL as long as their travel rules and their employer allow them to come to SOLEIL.

SOLEIL canteen and the Guest House will remain open.

For those who cannot travel, a limited number of projects can still be carried out remotely on certain beamlines (at the discretion of the responsible of the beamline).

At SOLEIL, to preserve the health of everybody, the application of protective measures must be strictly observed.

The necessary information is available in the PDF icon brochure (663.39 KB), also distributed to users when they arrive on SOLEIL site.

A specific chapter on safety measures at SOLEIL in relation to COVID-19 has been included in the safety training since beginning of June 2020. Before entering SOLEIL site, all users are required to complete safety training, even if the last training was less than a year ago.

You have also to fill in and sign a declaration of honor form to certify that you have not been in contact with a Covid-19 confirmed case, over the last 7 days.

The number of people on the beamline is limited only by the rules of distancing and precaution.
Therefore, for more than 4 participants per session, SOLEIL Users' Office, before approving the list of participants, will ask the Main Proposer to provide a schedule of users’ presence, during the experiment, to ensure that this precautionary principle is respected and that the experiment is carried out in good conditions (installation of equipment, day or night crews, etc.).

There will be no additional constraints on the safety of experiments, but we ask that the formalities for the red projects be organised very early (at least 3 weeks) before the start of the experiment.

If you bring equipment to SOLEIL with you, it must be adequately cleaned before it will be allowed on the SOLEIL site.
Cleaning of the equipment invokes the responsibility of your institute. You will be required to sign a declaration to this effect prior to the start of your experiment at SOLEIL.

As the situation is constantly evolving we may have to change our decisions. We will continue to inform you of these possible evolutions.

Last update, November 19, 2020


Below, the SUN set, your tool to write and submit a proposal, declare a participants list, request support laboratory(ies), submit an experimental report, to attach a publication to a proposal, … and the links to information about beamtime.


Next Call for proposals (AP28)

Proposal types Opening Deadline Allocation period
Standard 15/12/2020 15/02/2021 - 14:00 (French time) from September 23rd, 2021 to February 15th, 2022


All Beamlines are  open for the Call for Proposals 28.

The next call for the 5 French CRG beamlines located at ESRF(Grenoble), whose proposals are evaluated by SOLEIL Peer Review Committees:


will be open on 15/12/2020 and closed on 15/02/2021, 2 o'clock p.m.


SOLEIL Users Organisation - ORGUES


Proposal types

Number of calls

per year

Approximative call deadline

Allocation period Proposal duration
Standard 2



from September 1st to February 28th

from March 1st to July 31st

6 months
BAG MX - BioSAXS 1 15/09 from March 1st to February 28th year n+2 2 years
BAG NON MX - BioSAXS 1 15/09 from March 1st to February 28th year n+1 1 year
Rapid access - Submission on a continuous basis Submission on a continuous basis