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Low Radioactivity Techniques 2015

18–20 Mar 2015
US/Pacific timezone

Session

Session 6

19 Mar 2015, 14:30

Conveners

Session 6: Liquid and Gas Purity

  • Stefano Ragazzi

Presentation materials

There are no materials yet.

  1. 90. Radon and its Progeny: A pervasive problem for low-background counting
    Prof. Frank Calaprice (Princeton)
    19/03/2015, 14:30
    Invited
    Presentation
    As neutrino and dark matter experiments push to higher sensitivity for detecting rare events, background from radon (Rn-222) and its progeny can present serious problems. In some cases, background decays from one or more of the progenies limit the ultimate sensitivity of the experiment. Radon is produced in the decay chain of U-238, present in the Earth's crust at ppm levels, and diffuses...
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  2. 67. Liquid Xenon Purification and De-Radonation
    Andrea Pocar (UMass Amherst)
    19/03/2015, 14:50
    Invited
    Presentation
    Liquid xenon detectors are at the forefront of rare event physics, including searches for neutrino-less double beta decay and WIMP dark matter. The xenon for these experiments needs to be purified from chemical impurities such as electronegative atoms and molecules, which absorb ionization electrons, and VUV (178 nm) scintillation light-absorbing chemical species. In addition, superb...
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  3. 9. Radon and material radiopurity assessment for the NEXT neutrinoless double beta decay experiment
    Dr Susana Cebrian (University of Zaragoza)
    19/03/2015, 15:10
    Invited
    Presentation
    The “Neutrino Experiment with a Xenon TPC” (NEXT), intended to investigate neutrinoless double beta decay using a high-pressure xenon gas TPC filled with Xe enriched in 136Xe at the Canfranc Underground Laboratory (LSC, Laboratorio Subterráneo de Canfranc) in Spain, requires ultra-low background conditions demanding an exhaustive control of material radiopurity and environmental radon levels....
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  4. 92. The NEST simulation framework for low energy response in liquid xenon
    Mr Brian Lenardo (Lawrence Livermore National Laboratory)
    19/03/2015, 15:30
    Contributed
    Presentation
    Direct searches for dark matter require ultra-low-radioactivity techniques. In recent years, such experiments using noble liquids (especially liquid xenon) have obtained the lowest background levels in the field. Along with the development of this technology, there has been a continued effort in the community to better understand the detailed scintillation and ionization responses of noble...
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  5. 40. Expected background in the LZ experiment
    Dr Vitaly Kudryavtsev (University of Sheffield)
    19/03/2015, 15:50
    Contributed
    Presentation
    The LZ experiment, featuring a 7-tonne active liquid xenon target, is aimed at achieving unprecedented sensitivity to WIMPs where the background in the nuclear recoil band is expected to be dominated by neutrinos. To reach this goal, extensive simulations are carried out to accurately calculate the electron recoil and nuclear recoil rates in LZ. Both internal and external backgrounds are...
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