BULLKID silicon detector array background rate matches simulations at (6.8 ± 0.4 stat. ± 0.1 syst.) × 10^4 counts/keV/kg/day from 2 keV to 600 eV, with excess below 600 eV unlike typical cryogenic low-energy excesses.
Latest observations on the low energy excess in CRESST-III
2 Pith papers cite this work, alongside 20 external citations. Polarity classification is still indexing.
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Environmental radiation measurements combined with Geant4 simulations predict a residual background of approximately 250 events per day per kg per keV in the 10-100 eV range for NUCLEUS CaWO4 detectors, dominated by cosmic-ray neutrons after over 100x rejection.
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Background of the BULLKID detector array operated with moderate shield on surface
BULLKID silicon detector array background rate matches simulations at (6.8 ± 0.4 stat. ± 0.1 syst.) × 10^4 counts/keV/kg/day from 2 keV to 600 eV, with excess below 600 eV unlike typical cryogenic low-energy excesses.
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Particle background characterization and prediction for the NUCLEUS reactor CE$\nu$NS experiment
Environmental radiation measurements combined with Geant4 simulations predict a residual background of approximately 250 events per day per kg per keV in the 10-100 eV range for NUCLEUS CaWO4 detectors, dominated by cosmic-ray neutrons after over 100x rejection.