At TRIUMF, Vancouver, Canada, a new technique has been developed to measure electron capture (EC) branching ratios. This technique facilitates one of TRIUMF's Ion Traps for Atomic and Nuclear science (TITAN). Radioactive ions are stored in this spectroscopy Penning trap while their decays are observed. The key feature of this technique is the strong magnetic field that confines electrons from β decays along the trap axis while x-rays, following an EC, are emitted radially. This provides spatial separation of x-ray and β detection. Hence, very weak EC branches can be measured without β background at the x-ray detector. The developed technique will be used to measure EC branching ratios of transition nuclei in ββ decays. The latter measurement will help to gain a deeper understanding of the underlying nuclear physics in ββ decays. In this work, the technique was developed and its feasibility has been demonstrated by measuring the EC branching ratios of 107In and 124Cs.
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At TRIUMF, Vancouver, Canada, a new technique has been developed to measure electron capture (EC) branching ratios. This technique facilitates one of TRIUMF's Ion Traps for Atomic and Nuclear science (TITAN). Radioactive ions are stored in this spectroscopy Penning trap while their decays are observed. The key feature of this technique is the strong magnetic field that confines electrons from β decays along the trap axis while x-rays, following an EC, are emitted radially. This provides spatial...
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