Datensatz

Zusammenfassung

Lifetime measurements of β-decaying highly charged ions have been performed in the experimental storage ring (CSRe) by applying the isochronous Schottky mass spectrometry. The fully ionized ⁴⁹Cr and ⁵³Fe ions were produced in projectile fragmentation of ⁵⁸Ni primary beam and were stored in the CSRe tuned into the isochronous ion-optical mode. The new resonant Schottky detector was applied to monitor the intensities of stored uncooled ⁴⁹Cr²⁴⁺ and ⁵³Fe²⁶⁺ ions. The extracted half-lives T_1/2(⁴⁹Cr²⁴⁺)=44.0(27) min and T_1/2 (⁵³Fe²⁶⁺)=8.47(19) min are in excellent agreement with the literature half-life values corrected for the disabled electron capture branchings. This is an important proof-of-principle step towards realizing the simultaneous mass and lifetime measurements on exotic nuclei at the future storage ring facilities.