Speaker
Description
The CRAB (Calibrated nuclear Recoils for Accurate Bolometry) project is aimed at precise calibration of cryogenic detectors at sub-keV nuclear recoil energies, addressing key challenges in coherent neutrino scattering and low-mass dark matter detection.
After the successful validation of the method, demonstrated by the detection of a 112 eV recoil peak in a CaWO$_4$ cryogenic detector exposed to a commercial neutron source, an innovative experimental setup has been installed at the TRIGA Mark-II reactor at the Atominstitut in Vienna, where the cryostat is combined with a low-intensity thermal neutron beam and gamma detectors.
In this talk, we present the first commissioning results, including stable cryogenic detector operation, validation of our understanding of the external backgrounds and world’s first observation of neutron capture induced coincidences between gamma detectors and cryogenic targets. These results pave the way for a broad physics program with various target materials, including CaWO$_4$, Al$_2$O$_3$, Ge, Si.
| Collaboration you are representing | CRAB |
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