NUCLEUS is an experiment conceived for the detection of the
coherent elastic neutrino nucleus scattering.
The experiment will be carried out in the nuclear power plant of Chooz-B in France that provides an intense flux of anti-neutrinos.
The aim of NUCLEUS is to perform a very precise measurement of the coherent elastic scattering below 100 eV by employing extremely sensitive cryogenic detectors based on CaWO$_4$ and Al$_2$O$_3$ target crystals.
At present, the NUCLEUS apparatus is in commissioning phase
at the Underground Laboratory of the Technical
University Munich, where - after its installation and the first measurement phase - the experiment will be fully tested. Thereafter the entire apparatus will be moved to the reactor site at Chooz.