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Related Articles from SNS
Environmental $\gamma$-Ray Flux in Hall C at LNGS and Its Correlation with Radon Activity
arXiv:2605.09835v2 Announce Type: replace Abstract: We report a comprehensive measurement of the environmental $\gamma$-ray flux in Hall C of the Gran Sasso National Laboratory. A spatial mapping of the radiation was carried out using a high-purity germanium detector mounted on a movable cart and deployed at eight locations within the hall. The detector response function and full-energy-peak efficiencies were determined through Geant4 simulations validated with calibrated $\gamma$-ray...
First results of a high sensitivity and transportable Ring Laser Gyroscope
arXiv:2606.02594v1 Announce Type: new Abstract: Within the frame of the GINGER project, aimed at installing an array of large frame ring laser gyroscopes for fundamental physics tests and as part of a geophysics observatory located in the underground laboratory at Gran Sasso, Italy (LNGS-INFN), we are developing a ring laser gyroscope design to reduce spurious rotation of instrumental origin and the ability to extend the cavity perimeter from 1.5 up to 5m, thanks to the implementation of...
He-CF4-CH4 ternary mixtures as target gas for the CYGNO directional dark matter experiment
new Abstract: The CYGNO collaboration is advancing a high-resolution optical Time Projection Chamber (TPC) for directional dark matter searches and solar neutrino spectroscopy at LNGS. The detector uses a He-40%CF4 gas mixture at atmospheric pressure and a triple-GEM cascade for ionization signal amplification. Scintillation light from GEM electron avalanches is read out using sCMOS cameras, enabling high sensitivity to interactions in the few keV range, alongside precise ionization event...