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Czechoslovak Journal of Physics

, Volume 56, Issue 5, pp 505–510 | Cite as

First results for the measurement of double-electron capture of 106Cd in the experiment TGV II

  • I. Štekl
  • P. Čermák
  • P. Beneš
  • V. B. Brudanin
  • K. N. Gusev
  • V. G. Egorov
  • A. A. Klimenko
  • V. E. Kovalenko
  • A. Kovalík
  • N. I. Rukhadze
  • A. V. Salamatin
  • V. V. Timkin
  • Ts. Vylov
  • Ch. Briançon
  • F. Šimkovic
Article

Abstract

Present status of the experiment TGV II which is devoted to the measurement of double-beta decay of 106Cd is given. The low background spectrometer TGV II is installed in the Modane Underground Laboratory and has been running from February 2005 with approx 10 grams of 106Cd enriched at 75%. After an analysis of 3736 hours of experimental data the new improved half-life limit for 2νEC/EC decay of 106Cd (0 g.s. + → 0 g.s. + ) is given as T 1 2/2ν > 4.8 × 1019 years (90% CL). The search for 2νEC/EC decay of 106Cd to the excited states of 106Pd allows to determine the limits of the half-lives T 1 2/2ν (0 g.s. + → 2 1 + ) > 3.9 × 1019 years (90% CL) and T 1 2/2ν (0 g.s. + → 0 1 + ) > 5.8 × 1019 years (90% CL).

Key words

double-beta decay double-electron capture cadmium 106 

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Copyright information

© Institute of Physics, Academy of Sciences of Czech Republic 2006

Authors and Affiliations

  • I. Štekl
    • 1
  • P. Čermák
    • 1
  • P. Beneš
    • 1
  • V. B. Brudanin
    • 2
  • K. N. Gusev
    • 2
  • V. G. Egorov
    • 2
  • A. A. Klimenko
    • 2
  • V. E. Kovalenko
    • 2
  • A. Kovalík
    • 2
  • N. I. Rukhadze
    • 2
  • A. V. Salamatin
    • 2
  • V. V. Timkin
    • 2
  • Ts. Vylov
    • 2
  • Ch. Briançon
    • 3
  • F. Šimkovic
    • 4
  1. 1.Institute of Experimental and Applied PhysicsCzech Technical University in PraguePragueCzech Republic
  2. 2.Joint Institute for Nuclear ResearchDubna, Moscow RegionRussia
  3. 3.Centre de Spectrométrie Nucléaire et de Spectrométrie de MasseOrsayFrance
  4. 4.Comenius UniversityBratislavaSlovakia

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