Confinement of a Large Number of Antiprotons and Production of an Ultraslow Antiproton Beam
PhysRevLett_94_023401.pdf 210 KB
Torii, Hiroyuki A.
Yoshiki, Franzen Ken
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 10–500 eV antiproton beam from the trap.
Physical Review Letters
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American Physical Society
Copyright (c) 2005 American Physical Society.
Graduate School of Advanced Sciences of Matter