Evaporative Cooling and Coherent Axial Oscillations of Highly Charged Ions in a Penning Trap
2011 (English)In: Physical Review Letters, ISSN 0031-9007, Vol. 106, no 1, 013002- p.Article in journal (Refereed) Published
Externally, in an electron beam ion trap, generated Ar16+ ions were retrapped in a Penning trap and evaporatively cooled in their axial motion. The cooling was observed by a novel extraction technique based on the excitation of a coherent axial oscillation which yields short ion bunches of well-defined energies. The initial temperature of the ion cloud was decreased by a factor of more than 140 within 1 s, while the phase-space density of the coldest extracted ion pulses was increased by a factor of up to about 9.
Place, publisher, year, edition, pages
2011. Vol. 106, no 1, 013002- p.
Atom and Molecular Physics and Optics
IdentifiersURN: urn:nbn:se:su:diva-56739DOI: 10.1103/PhysRevLett.106.013002ISI: 000286749900008OAI: oai:DiVA.org:su-56739DiVA: diva2:412835