6533b7dafe1ef96bd126e971
RESEARCH PRODUCT
Quantum-state-selective decay spectroscopy of Ra213
M. EibachM. EibachJ. WenzlIngemar RagnarssonM. DworschakRobert HoischenLuis SarmientoLuis SarmientoLutz SchweikhardDmitrii NesterenkoJadambaa KhuyagbaatarI. KojouharovPavel GolubevSanna StolzeManuel Lazo CortésC. DroeseDirk RudolphMichael BlockL.-l. AnderssonU. ForsbergF. P. HeßbergerDieter AckermannDaniel WardH. SchaffnerCh. Lorenzsubject
PhysicsPhysics::Instrumentation and Detectors010308 nuclear & particles physicsNuclear shell modelPenning trap01 natural sciencesNuclear physicsUniversal linear accelerator0103 physical sciencesGamma spectroscopyAlpha decayAtomic physicsNuclear Experiment010306 general physicsSpectroscopyGround stateRadioactive decaydescription
An experimental scheme combining the mass resolving power of a Penning trap with contemporary decay spectroscopy has been established at GSI Darmstadt. The Universal Linear Accelerator (UNILAC) at GSI Darmstadt provided a $^{48}\mathrm{Ca}$ beam impinging on a thin $^{170}\mathrm{Er}$ target foil. Subsequent to velocity filtering of reaction products in the Separator for Heavy Ion reaction Products (SHIP), the nuclear ground state of the $5n$ evaporation channel $^{213}\mathrm{Ra}$ was mass-selected in SHIPTRAP, and the $^{213}\mathrm{Ra}$ ions were finally transferred into an array of silicon strip detectors surrounded by large composite germanium detectors. Based on comprehensive geant4 simulations and supported by theoretical calculations, the spectroscopic results call for a revision of the decay path of $^{213}\mathrm{Ra}$, thereby exemplifying the potential of a combination of a mass-selective Penning trap device with a dedicated nuclear decay station and contemporary geant4 simulations.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2017-09-18 | Physical Review C |