International Experiments
RADES-LSC
Coordinator: RADES-LSC
Duration: 2022 - 2025
RADES-LSC proposal combines single-photon detection by means of 3D transmons, magnetic tuning and the use of high-temperature superconductors to enhance the sensitivity of the axion dark matter detection in the 30 - 70 μeV mass range. The experiment will be developed as part of the ERC Synergy DarkQuantum project and is planned to be located at the Canfranc Underground Laboratory (LSC).
RADES-CAST
Coordinator: RADES-CAST
Duration: 2021 - 2024
RADES-CAST is part of the CERN Axion Solar Telescope (CAST), searching for axion dark matter in the 34.67 μeV mass range. A radio frequency cavity consisting of 5 sub-cavities coupled by inductive irises took physics data inside the CAST dipole magnet for the first time using this filter-like haloscope geometry. An exclusion limit with a 95% credibility level on the axion-photon coupling constant of gaγ≳4×10-13 GeV-1 over a mass range of 34.6738 μeV < ma < 34.6771 μeV is set. This constitutes a significant improvement over the current strongest limit set by CAST at this mass and is at the same time one of the most sensitive direct searches for an axion dark matter candidate above the mass of 25 μeV.
RADES-BabyIAXO
Coordinator:RADES-BabyIAXO
Duration: 2020 - 2023
RADES-BabyIAXO is a low-frequency axion haloscope setup suitable for operation inside the future BabyIAXO magnet, at DESY. This proposal has a potential sensitivity to the axion-photon coupling down to values corresponding to the KSVZ model, in the currently unexplored mass range between 1 and 2 μeV, after a total effective exposure of 440 days. This mass range is covered using four differently dimensioned 5-meter-long cavities, equipped with a tuning mechanism based on inner turning plates. RADES-BabyIAXO frequency range shows the tuning range for each cavity. The setup includes a cryostat and cooling system to cool down the BabyIAXO bore down to about 5 K, as well as appropriate low-noise signal amplification and detection chain.
