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Low Radioactivity Techniques 2017

23–27 May 2017
Seoul
Asia/Seoul timezone

Session

Session 4

25 May 2017, 09:00
Seoul

Seoul

Conveners

Session 4: Liquid and gas purification, including Rn control

  • Alan Poon (Berkeley Lab)

Session 4: Liquid and gas purification, including Rn control

  • Alan Poon (Berkeley Lab)

Presentation materials

There are no materials yet.

  1. 27. The purification study on the Liquid Scintillator for JUNO
    Dr Tao Hu (IHEP,CAS)
    25/05/2017, 09:00
    Oral
    The Jiangmen Underground Neutrino Observatory (JUNO) is under construction in the south of China which aims to measure the neutrino mass hierarchy and neutrino oscillation parameters by studying the reactor neutrinos from two nearby nuclear power plants 53km away. JUNO is also designed to has good capabilities of researches such as supernova neutrinos, geo-neutrinos, solar neutrinos and so on....
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  2. 25. Experience of gas purification and radon control in Borexino
    Dr Grzegorz Zuzel (Jagiellonian University)
    25/05/2017, 09:20
    Oral
    Borexino, located at the Gran Sasso Laboratory, is a liquid scintillator detector with active mass of 278 tons. The main goal of the experiment is the real-time registration of sub-MeV solar neutrinos through their elastic scattering on electrons. The lack of directionality of the light emitted by the scintillator makes it impossible to distinguish neutrino-scattered electrons from electrons...
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  3. 5. On-line $^{222}$Rn purification for liquid xenon detectors by means of cryogenic distillation
    Mr Stefan Bruenner (Max-Planck Institut fuer Kernphysik)
    25/05/2017, 09:40
    Oral
    The radioactive noble gas radon is an important source of internal background in many dark matter experiments based on liquid xenon. Due to emanation, $^{222}$Rn is permanently released into the detectors' liquid xenon targets. Careful material selection based on their radon emanation rate is a powerful strategy to mitigate background. In order to achieve further radon reduction, we discuss...
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  4. 57. Constraining Radon backgrounds in LZ
    Dr Eric Miller (South Dakota School of Mines)
    25/05/2017, 10:00
    Oral
    The Lux-Zeplin (LZ) dark matter detector will be a dual-phase Xe TPC with a 5.6 tonne fiducial volume located at the Sanford Underground Research Facility. To reduce the background event rate resulting from $\beta$-decay of radon decay progeny, LZ has embarked on a comprehensive program to screen detector materials for radon emanation. We will present the status of this screening...
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  5. 3. Low radioactivity underground argon for low-level radiation detectors
    Dr Henning Back (Pacific Northwest National Laboratory)
    25/05/2017, 10:40
    Oral
    There is a growing need for argon that has a lower concentration of 39Ar than that found in argon derived from the atmosphere. This isotope is the limiting background for any argon-based low-level radiation detector, such as argon dark matter detectors and low-level argon radiation detectors for environmental measurements (e.g., 39Ar age dating). In the atmosphere,...
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  6. 33. Radon Mitigation for the SuperCDMS SNOLAB Dark Matter Experiment
    Mr Joseph Street (SD Mines)
    25/05/2017, 11:00
    Oral
    A potential background for the SuperCDMS SNOLAB dark matter experiment is from radon daughters that have plated out onto detector surfaces. To reach background requirements, understanding plate-out rates during detector fabrication as well as mitigating radon in surrounding air is critical. A radon mitigated cleanroom planned at SNOLAB builds upon a system commissioned at the South Dakota...
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