Evaporative cooling and coherent axial oscillations of highly charged ions in a penning trap

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-defi...

Full description

Saved in:
Bibliographic Details
Published inPhysical review letters Vol. 106; no. 1; p. 013002
Main Authors Hobein, M, Solders, A, Suhonen, M, Liu, Y, Schuch, R
Format Journal Article
LanguageEnglish
Published United States 07.01.2011
Online AccessGet more information

Cover

More Information
Summary: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.
ISSN:1079-7114
DOI:10.1103/PhysRevLett.106.013002