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LRT2026 - Low Radioactivity Techniques

21–24 Sept 2026
The Guildhall, York
Europe/London timezone

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Session

Rn Detection and Mitigation 2

23 Sept 2026, 09:00
The Guildhall (The Guildhall, York)

The Guildhall

The Guildhall, York

The Courtyard, Guildhall, Coney St, York YO1 9QN United Kingdom

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  1. 69. Radon-222 Screening Capability and Research at SNOLAB
    Nasim Fatemighomi
    23/09/2026, 09:00
    Rn Detection and Mitigation
    Presentation

    Radon-222 is a limiting background in many leading dark matter and low-energy neutrino experiments. At SNOLAB, we operate several radon assay systems dedicated to material screening and to measuring radon concentrations in N₂ gas systems and ultra-pure water. This talk will describe these instruments and their capabilities. In addition, it will highlight a recent development aimed at improving...

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  2. 76. Measurements of Radon Diffusion and Emanation from Titanium
    Prof. Richard W Schnee (SDSM&T)
    23/09/2026, 09:20
    Rn Detection and Mitigation
    Presentation

    The LUX-ZEPLIN (LZ) Ti cryostat, despite having record low levels of many reported radioactive contaminants, shows a surprisingly high level of radon emanation. Possible explanations include ineffective acid etching of surface contamination, significant surface contamination added after the etching, or surprisingly high diffusion of radon in Ti. Measurements to determine the cause and help...

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  3. 79. Updates on the International Radon Network
    Dr Robert Renz Marcelo Gregorio (Australian National University)
    23/09/2026, 09:40
    Rn Detection and Mitigation
    Presentation

    The International Radon Network was recently established to improve coordination between laboratories and collaborations working on radon detection, measurement, and mitigation has gained support from researchers across the dark matter, neutrinoless double beta decay, and underground physics communities, alongside growing interest in industrial applications and research translation. This...

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  4. 92. Study and development of new radon adsorbents - Update of the IRENE Project
    Hichem Tedjditi
    23/09/2026, 10:00
    Rn Detection and Mitigation
    Presentation

    Radon is one of the most significant sources of radioactive background in low-energy and ultra-rare event particle and astroparticle physics experiments, such as neutrinoless double-beta decay searches and direct dark matter detection.
    Future-generation experiments will require radon concentrations at the level of only a few atoms per cubic meter or per kilogram. Achieving such extremely low...

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  5. 90. Diffusion of 210Pb and 210Po in Nylon
    Pushpa Adhikari
    23/09/2026, 10:20
    Rn Detection and Mitigation
    Presentation

    Radon and its progeny represent a significant source of background in rare-event physics experiments owing to their continuous production within the natural uranium decay chain. To investigate the diffusion of radon daughters into detector materials, we developed a dedicated experimental setup comprising a controlled radon source, a high-electric-field vacuum chamber, and a thin Nylon-6 film....

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  6. 63. Testing radon mitigating surface coatings in Xenoscope - a 2.6 meter long liquid xenon TPC
    Margherita Noia (University of Zurich)
    23/09/2026, 10:40
    Rn Detection and Mitigation
    Presentation

    Large liquid xenon experiments have become one of the leading detector technologies applied in rare event searches, such as direct dark matter detection or the search for the neutrinoless double beta decay.
    Significant background sources to these searches arise from progeny isotopes of the radioactive noble gas $^{222}$Rn, which can emanate from detector surfaces. In particular for the next...

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