Investigation of the 2vEC/EC Decay of 106Cd

被引：5

作者：

Rukhadze N.I. ^{[1
]}

Beneš P. ^{[2
]}

Briančon Ch. ^{[3
]}

Brudanin V.B. ^{[1
]}

Vylov Ts. ^{[1
]}

Gusev K.N. ^{[1
]}

Egorov V.G. ^{[1
]}

Klimenko A.A. ^{[1
]}

Kovalenko V.E. ^{[1
]}

Kovalik A. ^{[1
]}

Salamatin A.V. ^{[1
]}

Timkin V.V. ^{[1
]}

Čermák P. ^{[2
]}

Štekl I. ^{[2
]}

机构：

[1] Joint Institute for Nuclear Research

[2] Institute of Experimental and Applied Physics, CTU

[3] Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse

来源：

Bulletin of the Russian Academy of Sciences: Physics | 2008年 / 72卷 / 06期

基金：

俄罗斯基础研究基金会;

关键词：

Daughter Nucleus; Detector Part; Total Measurement Time; Near Detector; Double Coincidence;

D O I：

10.3103/S1062873808060038

中图分类号：

学科分类号：

摘要：

Search for the β+β+, β+ EC, and EC/EC modes of the 106Cd decay was carried out with the TGV-2 (Telescope Germanium Vertical) low-background multidetector spectrometer installed at the Modane underground laboratory (4800 m w.e.). The measured foil samples ∼50 Um thick and 52 mm in diameter were placed between the entrance windows of the neighboring detectors inside the cryostat. The total measurement time for 10 g of 106Cd enriched to 75% was 8687 h. New limits (at the 90% confidence level, CL) were obtained for the 106Cd half-lives against various branches of the decay to the ground state 0+ and excited states 2+ of the 106Pd daughter nucleus. They are T1/2(2vββ+ β+) ≥6.0×1019 y, and T1/2 (2vβ+EC) ≥5.9 × 1019 y, and T1/2(2v EC/EC ) ≥ 3.0 × 1020 y for the transitions to the 0+ ground state of 106Pd; T1/2 (2vβ+β+) ≥ 5.7 × 1019 y, T1/2(2vβ+ EC) ≥5.9 × 1019 y, and T1/2(2v EC/EC) ≥ 4.2 × 1019 y for the transitions to the 2+, 512-keV excited state of 106Pd; and T 1/2(2v EC/EC) ≥ 3.1 × 1019 y for the transition to the 01 +, 1334-keV excited state of 106Pd. © Allerton Press, Inc. 2008.

引用

页码：731 / 734

页数：3

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