0000000000300587

AUTHOR

R. X. Schüssler

showing 2 related works from this author

Production of highly charged ions of rare species by laser-induced desorption inside an electron beam ion trap

2019

This paper reports on the development and testing of a novel, highly efficient technique for the injection of very rare species into electron beam ion traps (EBITs) for the production of highly charged ions (HCI). It relies on in-trap laser-induced desorption of atoms from a sample brought very close to the electron beam resulting in a very high capture efficiency in the EBIT. We have demonstrated a steady production of HCI of the stable isotope 165Ho from samples of only 1012 atoms (∼300 pg) in charge states up to 45+. HCI of these species can be subsequently extracted for use in other experiments or stored in the trapping volume of the EBIT for spectroscopic measurements. The high efficie…

Speichertechnik - Abteilung BlaumMaterials scienceAtomic Physics (physics.atom-ph)Electron captureElectronvoltFOS: Physical scienceschemistry.chemical_element01 natural sciences7. Clean energyPhysics - Atomic Physics010305 fluids & plasmasIon0103 physical sciencesPhysics::Atomic PhysicsInstrumentation010302 applied physicsRange (particle radiation)Stable isotope ratioPhysics - Plasma PhysicsAtomic massPlasma Physics (physics.plasm-ph)chemistryddc:620Atomic physicsHolmiumElectron beam ion trapReview of Scientific Instruments
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Direct Measurement of the Mass Difference ofHo163andDy163Solves theQ-Value Puzzle for the Neutrino Mass Determination

2015

The atomic mass difference of (163)Ho and (163)Dy has been directly measured with the Penning-trap mass spectrometer SHIPTRAP applying the novel phase-imaging ion-cyclotron-resonance technique. Our measurement has solved the long-standing problem of large discrepancies in the Q value of the electron capture in (163)Ho determined by different techniques. Our measured mass difference shifts the current Q value of 2555(16) eV evaluated in the Atomic Mass Evaluation 2012 [G. Audi et al., Chin. Phys. C 36, 1157 (2012)] by more than 7σ to 2833(30(stat))(15(sys)) eV/c(2). With the new mass difference it will be possible, e.g., to reach in the first phase of the ECHo experiment a statistical sensit…

Physics010308 nuclear & particles physicsElectron captureQ valueElectron rest massGeneral Physics and AstronomyMass spectrometry7. Clean energy01 natural sciencesBeta decayAtomic massNuclear physicsAtomic mass constant0103 physical sciencesNeutrino010306 general physicsPhysical Review Letters
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