Nucleus Bubbles
Learn more about NUCLEUS in a fun way by reading our dedicated comic strip!
News & Updates
A clean room around the NUCLEUS setup
June, 2024
We have installed a clean room around the NUCLEUS cryostat. This ensures a pristine environment, preventing dust and contaminants from entering the cryostat.
Additionally, the cryostat has been thoroughly cleaned and is now ready for future measurements!
Collaboration and detector meetings in Munich
February - April, 2024
Meetings focused on the detector development and the collaboration meeting took place February and April 2024. It was the occasion to define more precisely the goals of the Long Background Data taking foreseen in summer 2024.
Collaboration meeting in Vienna
October, 2023
The NUCLEUS collaboration met in Vienna in October 2023.
The meeting was focused on the preparation of the long background data taking, that will happen in 2024 in the TUM and the preparation of the strategy for the move of the experiment in Chooz.
The shielding and the cryostat reunited at TUM
May, 2023
Until now, the shielding and the cryostat were staring at each other without talking. But the cryostat has finally been moved inside the cryostat and it seems that they are getting along quite well.
A great story is starting with those two. A perfect match which starts to look like the final NUCLEUS setup!
Installation of the polyethylene shielding
April, 2023
The borated polyethylene (no that's not a washing machine...) has arrived at TUM and has been successfully installed inside the lead shielding. With this last step, the NUCLEUS external shielding (Muon Veto, mechanical structure, lead and polyethylene) is complete!
Collaboration meeting at Chooz
March 6, 2023
Exactly three years after the first collaboration meeting at Chooz, the collaboration gathered again in March at the nuclear power plant.
Even if the site was quite disturbed by some strikes, this meeting has been the occasion for most of the members to visit the VNS and the power plant. It was a really productive meeting, which helped to define the goals of the commissioning that is bound to happen in the next months at TUM, other than start planning the moving to Chooz.
The muon veto has arrived at TUM
December 8, 2022
The installation of the NUCLEUS Muon Veto has been performed in December 2022 by the CEA team. The 28 panels have been successfully assembled on the mechanical structure. The cabling will follow in the beginning of 2023.
All the process went quite smoothly!
First layer of shielding
September 1, 2022
The mechanical structure and the lead shielding, the first layers of the NUCLEUS passive shileding was installed in the UnderGround Lab (UGL) at TUM. The other layers of external shielding (passive and active with the Muon Veto) will follow in the mounting procedure of the experiment.
Collaboration meeting at Bracciano
July 6, 2022
In July, the collaboration meeting took place at Bracciano near the lake of the same name, close to Roma. A great environment to work on the blank assembly and the commissioning of the experiment.
Commissioning of a brandnew Bluefors cryostat for NUCLEUS
November 19, 2021
A new dry dilution refrigerator from Bluefors has just been delivered to TUM, and will be commissioned during the next weeks. The cryostat will be used for R&D of several NUCLEUS components, before (soon) hosting the first NUCLEUS target detectors.
Detector meeting at TUM
October 20, 2021
A special meeting focused on the NUCLEUS detectors took place at TUM. It was the first in-presence meeting (although a hybrid one in fact...) after a long time. It was the occasion to talk about the detector technologies and the decide the next key steps for the development of the experiment.
The NUCLEUS cryostat receipt at TUM
April 24, 2020
The NUCLEUS dry dilution refrigerator has arrived and has been mounted at TUM. The NUCLEUS cryogenic detectors are tested and operated in this cryostat: the Cryogenic Outer Veto, the silicon Inner Veto, the TESs used to read out the CaWO4 and Al2O3 crystals.
Collaboration meeting at Chooz
March 5, 2020
NUCLEUS members met at Chooz in March, just in the beginning of the coronavirus pandemic. The occasionfor many members to discover the power plant for the first time.
Collaboration Meeting at Paris-Saclay
May 22, 2019
The CEA Paris-Saclay welcomed the collaboration for a two-day meeting. Design of the shielding, planning of the experiment and challenges to face have been discussed.
Kick-off meeting at TUM
November, 2018
The NUCLEUS collaboration started during this kick-off meeting in 2018 at TUM. The name, the collaboration agreements, the experimental site and the concept of the experiment were defined at this meeting.
