Atomic Physics Experiments at TSR@ISOLDE

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Atomic Physics Experiments at TSR@ISOLDE Stefan Schippers Institut für Atom- und Molekülphysik JU S TU S -LIEB IG - UNIVERSITÄT GIESSEN www.uni-giessen.de/cms/iamp I M P A

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Atomic Physics Experiments at TSR@ISOLDE. Stefan Schippers. Institut für Atom- und Molekülphysik. www.uni-giessen.de/cms/iamp. Outline. TSR seen with the eyes of an atomic physicist Atomic Physics at TSR@ISOLDE Atomic data for astrophyics Atomic data for fusion energy research - PowerPoint PPT Presentation

Transcript of Atomic Physics Experiments at TSR@ISOLDE

Merged-Beams Experiments

Atomic Physics Experiments at TSR@ISOLDEStefan SchippersInstitut fr Atom- und Moleklphysik

www.uni-giessen.de/cms/iampOutlineTSR seen with the eyes of an atomic physicist

Atomic Physics at TSR@ISOLDEAtomic data for astrophyicsAtomic data for fusion energy researchHyperfine induced atomic transitionsStefan Schippers, TSR@ISOLDE, CERN, October 29-30, 201222

The Heidelberg TSR storage ring at MPIKStefan Schippers, TSR@ISOLDE, CERN, October 29-30, 201233

Decay of excited statesSimply wait untilmetastable ionshave relaxed to their ground state.S. Schippers et al.PRL 98 (2007) 0330012s2p 3P0decayBe-like 47Ti18+Stefan Schippers, TSR@ISOLDE, CERN, October 29-30, 201244ReactionsStefan Schippers, TSR@ISOLDE, CERN, October 29-30, 20125e- beam100% detection efficiencycollision experiments with dilute ensembles of particlestunable relative energy: sub meV to sub MeVcross sections on an absolute scaleReaction products beams of high directionality high particle energies in lab framecharge-changing collisionselectron-ion recombinationelectron-impact ionization of ionsThe electron beamStefan Schippers, TSR@ISOLDE, CERN, October 29-30, 20126

high magnetic field Bcathlow magnetic field BBBcathT^ = Tcath transversetemperaturecathodetemperatureTcath 1400 K

kBTcath 0.12 eVlongitudinaltemperatureT || = + relaxation (kBTcath)22eUacc