The detection as well as detailed investigations of the properties of CEυNS utilizing neutrinos from a nuclear reactor require the detector to be located as close as possible to the reactor core to guarantee a maximized neutrino flux. To achieve this, the CONUS detector is located at a distance of 17 m from the reactor core inside the nuclear reactor facility at Brokdorf,J. Hakenmüller et al.: "Neutron-induced background in the CONUS experiment", arXiv:1903.09269H. Bonet et al. (CONUS Collaboration): "Constraints on Elastic Neutrino Nucleus Scattering in the Fully Coherent Regime from the CONUS Experiment", Phys. Rev. Lett. 126, 041804 (2021), see Figure 4. This is only possible due to the selected detector technology H. Bonet et al.: "Large-size sub-keV Sensitive Germanium Detectors for the CONUS Experiment", https://arxiv.org/abs/2010.11241 such that it can be placed inside the facility without interfering with the operation of the reactor.
