Anomalous behaviour of laser-cooled fast ion beams

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  • U. Eisenbarth
  • ,
  • M Mudrich
  • B. Eike
  • ,
  • M. Grieser
  • ,
  • R. Grimm
  • ,
  • A. Luger
  • ,
  • T Schatz
  • ,
  • U. Schramm
  • ,
  • D. Schwalm
  • ,
  • M. Weidemüller

We have observed a sudden disappearance of intrabeam scattering in a laser-cooled stored Be-9(+) beam at the Heidelberg Test Storage Ring. The transition takes place at about 10(6) ions corresponding to a mean ion distance of similar to eq similar or equal to 50 mu m. The disappearance of IBS is accompanied by a decrease of the longitudinal temperature by more than two orders of magnitude. At the same time, the transverse width of the ion beam shows an increase which is limited to the diameter of the laser beam. Experimental signatures of this anomalous beam behaviour are described, and possible interpretations are discussed.

TidsskriftHyperfine Interactions
Sider (fra-til)223-235
Antal sider13
StatusUdgivet - 2000
Begivenhed1st Euroconference on Atomic Physics at Accelerators (APAC 99) - MAINZ, Tyskland
Varighed: 19 sep. 199924 sep. 1999


Konference1st Euroconference on Atomic Physics at Accelerators (APAC 99)

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