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Open House – SOLEIL de Minuit 2023

Warning: this event will only be held in French

On Friday, November 24, 2023, for the 11th edition of SOLEIL de Minuit, the synchrotron SOLEIL will exceptionally open its doors for night tours of its facilities, from 6 p.m. to midnight.

Come and discover this high-tech installation, discuss with all the people who work at SOLEIL (even at night) and visit their workplace!

Please note that this event will only be held in French. Entry is prohibited to people carrying electronic equipment having an impact on their health (pacemaker, insulin pump, neurostimulator for epileptic seizures, etc.), due to the presence of powerful magnets.

Visits are available for children from 10 years old.

Please arrive 10 minutes before your tour start time. You must present your tickets that you will receive via email after your reservation at the reception pavilion to enter the site.


On the program this year:

  • Guided tour of the synchrotron
  • Exchanges with the SOLEIL staff and visit to their workplace (beamline, laboratory, or workshop)
  • And a few little surprises…


The visit lasts approximately 1 hour 30 minutes with departures every 30 minutes. Please note that the visit is prohibited for children under 10 years old. The number of places per time slot is limited. The visit will only be held in French.

If you wish to cancel a ticket or reservation, please send an e-mail to Alice TOFFIN.

Access to the site:

Find out how to come to SOLEIL on this page.

You can park for free in the SOLEIL car parks available to you, our guides will show you the way.

A little thought for the environment: favor public transport (when timetables allow it) and carpooling.


You can register below: