Confinement of a Large Number of Antiprotons and Production of an Ultraslow Antiproton Beam

Details Confinement of a Large Number of Antiprotons and Production of an Ultraslow Antiproton Beam Confinement of a Large Number of Antiprotons and Production of an Ultraslow Antiproton Beam

Jan 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005phrvl..94b3401k&link_type=abstract

Physical Review Letters, vol. 94, Issue 2, id. 023401

Physics

40

Exotic Atoms And Molecules, Atomic And Molecular Beam Sources And Techniques, Nonneutral Plasmas, Electrostatic Waves And Oscillations

Scientific paper

We have used a radio frequency quadrupole decelerator to decelerate antiprotons emerging from the CERN Antiproton Decelerator from MeV- to keV-scale energy, and collected five decelerated pulses in a multiring trap. Some 5×106 antiprotons were stacked in this way. Cooling of the trapped antiprotons by a simultaneously trapped electron plasma was studied nondestructively via shifts in plasma mode frequencies. We have also demonstrated the first step in extracting a 10 500eV antiproton beam from the trap.

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