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  • Sub-Kelvin Thermal Conducti...
    Kellaris, N.; Daal, M.; Epland, M.; Pepin, M.; Kamaev, O.; Cushman, P.; Kramer, E.; Sadoulet, B.; Mirabolfathi, N.; Golwala, S.; Runyan, M.

    Journal of low temperature physics, 08/2014, Letnik: 176, Številka: 3-4
    Journal Article

    We present measurements of the thermal conductivity between 0.05 and 1 K, and radioactive contamination levels, for some thermally isolating materials. TIMET Ti 15-3-3-3, Mersen grade 2020 graphite, Vespel SP-1, Vespel SP-22, Vespel SCP-5000, Vespel SCP-5050, Graphlite CFRP, and a Kapton/epoxy composite are all investigated. Thermal conductivities were measured using a single-heater longitudinal heat flow method. Material radioactivity was determined for the materials at a low background counting facility using a high-purity gamma detector and GEANT4 Monte Carlo simulations.