6533b7d0fe1ef96bd125b74c

RESEARCH PRODUCT

The identification and confirmation of isomeric states in 254Rf and 255Rf through conversion electron detection

A. HübnerJ. KrierJ. HoffmannV. YakushevaB. SchaustenL.-l. AnderssonJ. SteinerJ. KhuyagbaatarA. K. MistryEgon JägerMichael BlockAlexander YakushevJulia EvenH. BrandCh. E. DüllmannF. P. HeßbergerDieter AckermannBettina LommelN. KurzBirgit Kindler

subject

PhysicsNuclear and High Energy PhysicsChemical substanceIsotope010308 nuclear & particles physics0103 physical sciencesElectronAtomic physics010306 general physics01 natural sciencesRecoil separatorSpontaneous fission

description

Abstract The neutron-deficient isotopes 254,255Rf were produced in the fusion-evaporation reaction 50Ti + 206Pb at the gas-filled recoil separator TASCA. Decay properties of these nuclei were investigated by applying fast digital electronics. A search for isomeric states in both isotopes was performed by using the accompanying conversion electron emissions. Isomeric states with half-lives of 4(1) μs and >30 μs were measured for 254Rf and 255Rf, respectively, which confirm the findings at different separators. The present experimental results demonstrate the great potential of fast digital electronics for measurements of isomeric states in the heaviest nuclei, which are only producible in small quantities.

yearjournalcountryeditionlanguage
2020-02-01Nuclear Physics A
https://doi.org/10.1016/j.nuclphysa.2019.121662