6533b82bfe1ef96bd128d6c7
RESEARCH PRODUCT
Time-separated oscillatory fields for high-precision mass measurements on short-lived Al and Ca nuclides
C. YazidjianSebastian GeorgeAlban KellerbauerKlaus BlaumR. SavreuxU. HagerHans-jürgen KlugeMartin BreitenfeldtLutz SchweikhardDavid LunneyGeorges AudiStefan SchwarzFrank HerfurthMartin KretzschmarAlexander HerlertBertram Blanksubject
PhysicsRadionuclide010308 nuclear & particles physicsSpecific massGeneral Physics and AstronomyFOS: Physical sciences[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]Penning trap01 natural sciencesIonStable nuclide0103 physical sciencesNuclear Physics - ExperimentNuclideAtomic physicsNuclear Experiment (nucl-ex)010306 general physicsNuclear ExperimentNuclear ExperimentExcitationdescription
High-precision Penning trap mass measurements on the stable nuclide 27Al as well as on the short-lived radionuclides 26Al and 38,39Ca have been performed by use of radiofrequency excitation with time-separated oscillatory fields, i.e. Ramsey's method, as recently introduced for the excitation of the ion motion in a Penning trap, was applied. A comparison with the conventional method of a single continuous excitation demonstrates its advantage of up to ten times shorter measurements. The new mass values of 26,27Al clarify conflicting data in this specific mass region. In addition, the resulting mass values of the superallowed beta-emitter 38Ca as well as of the groundstate of the beta-emitter 26Al m confirm previous measurements and corresponding theoretical corrections of the ft-values.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2008-06-01 |