LRT2026 - Low Radioactivity Techniques

Session

Crystal Scintillators

21 Sept 2026, 16:40

The Guildhall (The Guildhall, York)

4. Rare alpha decays of natural Hf isotopes

Alice Leoncini (Dipartimento di Fisica, Università di Roma “Tor Vergata”, I-00133, Rome, 8 Italy.)

21/09/2026, 16:40

Crystal Scintillators

Presentation

New measurements of the rare α decays of natural Hf isotopes have been performed using four Cs$_2$HfCl$_6$ crystal scintillators operated in the low-background setup of DAMA/CRYS at the Gran Sasso National Laboratory (LNGS) of INFN, Italy. The “source = detector” approach provides high sensitivity to ultra-long-lived processes by embedding the decaying nuclei directly within the detector...

15. High-sensitivity bolometric α screening with SURFαCE

Giovanni Benato (Gran Sasso Science Institute), Dr Miryam Martinez-Vara (Gran Sasso Science Institute)

21/09/2026, 17:00

Low-Background Assay Techniques

Presentation

The goal of the SURF$\alpha$CE (Silicon Underground Radiopure Finder of $\alpha$ Contamination Excesses) $\alpha$ spectrometer is to demonstrate the possibility to measure the surface radioactive contamination of the $^{232}$Th and $^{238}$U decay chains with an unprecedented sensitivity of 1 nBq/cm$^2$, a value demanded by several next-generation experiments for rare event searches. The...

97. SABRE-North: the low radioactivity approach to dark matter annual modulation detection

Davide D'Angelo (Università degli Studi di Milano & INFN)

21/09/2026, 17:20

Crystal Scintillators

Presentation

The SABRE-North experiment aims to search for dark matter via the annual modulation signature, deploying an array of ultra-low-background NaI(Tl) crystals at Gran Sasso National Laboratory.
The array will be composed of nine detectors (5 kg mass each) in a Cu and PE passive shielding. The expected background rate in the energy window of interest [1,6] keV is of the order of 0.5 dru.
This...