LRT2026 - Low Radioactivity Techniques

Session

Mitigation of Surface Contamination

22 Sept 2026, 16:15

The Guildhall (The Guildhall, York)

25. Results of the LEGEND-200 background mitigation campaign

Sofia Calgaro (Universität Zürich)

22/09/2026, 16:15

Mitigation of Surface Contamination

Presentation

The search for neutrinoless double beta ($0\nu\beta\beta$) decay with $^{76}$Ge detectors tests whether neutrinos are Majorana particles and requires ultra-low background conditions, making background identification and mitigation crucial for next-generation experiments.

The LEGEND (Large Enriched Germanium Experiment for Neutrinoless $\beta\beta$ Decay) collaboration aims to improve the...

27. Characterization of $^{226}$Ra implanted sources for background mitigation and high-sensitivity $\alpha$ spectroscopy

Mr Lorenzo Ascenzo (University of L'Aquila)

22/09/2026, 16:35

Mitigation of Surface Contamination

Presentation

Several next-generation experiments for rare events require a further reduction of the $^{238}$U and $^{232}$Th contamination on material surfaces with respect to what is achievable with current technologies. Such a reduction can be achieved by improved cleaning techniques or surface coating, both of which can be optimized using sources with a well-known surface contamination and/or $^{222}$Rn...

49. Suppressing α background in HPGe detectors for next-generation 0νββ searches

Alex Biondi (Jagiellonian University in Kraków)

22/09/2026, 16:55

Mitigation of Surface Contamination

Presentation

Suppressing α background in HPGe detectors for next-generation 0νββ searches

A. Biondi$^1$, G. Zuzel$^1$

1) M. Smoluchowski Institute of Physics, Jagiellonian University, Krakow, Poland

High-purity germanium detectors enriched in $^{76}\mathrm{Ge}$ are among the most sensitive technologies for neutrinoless double beta decay searches, thanks to their excellent energy resolution,...