First capture of antiprotons in a Penning trap: A kiloelectronvolt source

Antiprotons from the Low Energy Antiproton Ring of CERN are slowed down from 21 MeV to below 3 keV by being passed through 3 mm of material, mostly Be. While still in flight, the kiloelectronvolt antiprotons are captured in a Penning trap created by the sudden application of a 3-kV potential. Antipr...

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Veröffentlicht in:Phys. Rev. Lett.; (United States) 1986-11, Vol.57 (20), p.2504-2507
Hauptverfasser: Gabrielse, G, Fei, X, Helmerson, K, Rolston, SL, Tjoelker, R, Trainor, TA, Kalinowsky, H, Haas, J, Kells, W
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Sprache:eng
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Zusammenfassung:Antiprotons from the Low Energy Antiproton Ring of CERN are slowed down from 21 MeV to below 3 keV by being passed through 3 mm of material, mostly Be. While still in flight, the kiloelectronvolt antiprotons are captured in a Penning trap created by the sudden application of a 3-kV potential. Antiprotons are held for 100 s and more. Prospects are now excellent for much longer trapping times under better vacuum conditions. This demonstrates the feasibility of a greatly improved measurement of the inertial mass of the antiproton and opens the way to other intriguing experiments. (Author)
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.57.2504