LRT2026 - Low Radioactivity Techniques

Session

Low-Background Assay Techniques 2

24 Sept 2026, 13:55

The Guildhall (The Guildhall, York)

40. Rapid low-background radioassay techniques for 210Pb and 3H in materials for rare-event searches

Marco Consonni (Università di Milano Bicocca, Istituto Nazionale di Fisica Nucleare)

24/09/2026, 13:55

Low-Background Assay Techniques

Presentation

The development of next-generation rare-event experiments requires increasingly sensitive and rapid radioassay techniques for the screening and monitoring of detector materials. In particular, long-lived low-energy emitters such as
$^{210}$Pb and $^{3}$H represent a critical background source for several low-background applications, while remaining challenging to measure with conventional...

44. Decay energy spectroscopy with solid phase extraction for radio-assay of high-purity copper.

jongseok Chung (ChungAng University)

24/09/2026, 14:15

Low-Background Assay Techniques

Presentation

Rare event search experiments such as AMoRE require precise radioassay of materials to constrain experiment backgrounds. ICP-MS is sensitive only to long-lived nuclides, while HPGe gamma-ray counting is generally limited by low detection efficiency that scales poorly with sample size. To bypass the limitations of these long-established techniques, we are developing a decay energy spectroscopy...

47. Gator: A low-background Germanium facility for high sensitivity gamma-ray spectroscopy

Aravind Remesan Sreekala (University of Zurich)

24/09/2026, 14:35

Low-Background Assay Techniques

Presentation

Germanium spectroscopy is a non-destructive screening method that provides precise information on primordial, cosmogenic, and anthropogenic radioactive contaminants using high-resolution $\gamma$-ray spectroscopy. Gator is a high-sensitivity, low-background germanium spectrometer that is installed at the Gran Sasso Underground Laboratory (LNGS) in Italy. It is operated at an average depth of...

22. Development of an Ultrasensitive ICP-MS Assay Method for the Determination of Long-lived Radioisotopes in Gadolinium Used in Scintillator Materials

Isaac Arnquist (Pacific Northwest National Laboratory)

24/09/2026, 14:55

Low-Background Assay Techniques

Presentation

The development of ultra-low background gadolinium-loaded liquid scintillator (Gd-LS) is critical for current and next-generation experiments in neutrino and rare-event physics, including supernova neutrino detection, reactor monitoring, and as a neutron veto in dark matter searches. The presence of trace radioactive contaminants can introduce backgrounds that severely limit sensitivity. In...

28. First results from the new upgraded underground ultra-low background laboratory STELLA (SubTErranean Low Level Assay) of the Laboratori Nazionali del Gran Sasso

Chiara Ghiano (LNGS - INFN)

24/09/2026, 15:15

Low-Background Assay Techniques

Presentation

The underground ultra-low background laboratory STELLA (SubTerranean Low Level Assay) in the Laboratori Nazionali del Gran Sasso of the National Institute of Nuclear Physics (LNGS-INFN) is principally dedicated to material screening measurements for fundamental physics experiments installed in the underground laboratories. It uses ultra-low background (ULB) gamma-ray spectrometry, but has also...