Počet záznamů: 1

Limits on the release of Rb isotopes from a zeolite based 83mKr calibration source for the XENON project

  1. 1.
    0367857 - UJF-V 2013 RIV GB eng J - Článek v odborném periodiku
    Hannen, V.M. - Aprile, E. - Baudis, L. - Beck, M. - Bokeloh, K. - Ferella, A.D. - Giboni, K. - Lang, R.F. - Lebeda, Ondřej - Ortjohann, H.W. - Schumann, M. - Špalek, Antonín - Vénos, Drahoslav - Weinheimer, C.
    Limits on the release of Rb isotopes from a zeolite based 83mKr calibration source for the XENON project.
    Journal of Instrumentation. Roč. 6, Oct. (2011), P10013/1-P10013/11 ISSN 1748-0221
    Grant CEP: GA MŠk LC07050
    Výzkumný záměr: CEZ:AV0Z10480505
    Klíčová slova: noble-liquid detectors * detector alignment * ionization two phase
    Kód oboru RIV: BG - Jaderná, atomová a mol. fyzika, urychlovače
    Impakt faktor: 1.869, rok: 2011

    The isomer 83mKr with its half-life of 1.83 h is an ideal calibration source for a liquid noble gas dark matter experiment like the XENON project. However, the risk of contamination of the detector with traces of the much longer lived mother isotope 83Rb(T1/2 = 86.2 d) has to be ruled out. In this work the release of 83Rb atoms from a 1.8 MBq 83Rb source embedded in zeolite beads has been investigated. To do so, a cryogenic trap has been connected to the source for about 10 days, after which it was removed and probed for the strongest 83Rbγ-rays with an ultra-sensitive Germanium detector.
    Trvalý link: http://hdl.handle.net/11104/0202384