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RESEARCH PRODUCT
SpecTrap: precision spectroscopy of highly charged ions—status and prospects
Stefan E. SchmidtStefan E. SchmidtRadu CazanVolker HannenWilfried NörtershäuserWilfried NörtershäuserJ. VollbrechtManuel VogelR. JöhrenT. MurböckD. M. SegalChristian WeinheimerGerhard BirklSebastian AlbrechtZoran AndelkovicRichard C. Thompsonsubject
PhysicsPrecision spectroscopyTrappingCondensed Matter PhysicsPenning trapAtomic and Molecular Physics and OpticsIonPhysics::Atomic PhysicsSpectral resolutionAtomic physicsSpectroscopyHyperfine structureMagnesium ionMathematical Physicsdescription
We present the status of the SpecTrap experiment currently being commissioned in the framework of the HITRAP project at GSI, Darmstadt, Germany. SpecTrap is a cryogenic Penning trap experiment dedicated to high-accuracy laser spectroscopy of highly charged ions (HCI) near rest. Determination of fine structure and hyperfine structure splittings in HCI with an expected relative spectral resolution of 10−7 will offer the possibility to test quantum electrodynamics in strong fields with unprecedented accuracy. Recently, we have demonstrated trapping and laser Doppler cooling of singly charged magnesium ions in SpecTrap. We report on the status of the experimental apparatus, measurements and present the future program toward storage and cooling of HCI.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2013-09-01 | Physica Scripta |