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Penning trap |
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Penning trap [′pen·iŋ ‚trap] (engineering) A device for trapping electrons and isolating single electrons, consisting of a large, homogeneous magnetic field plus a superimposed weak parabolic electric potential created by a positive charge +Qon a ring electrode and two negative charges -Q/2 each on two cap electrodes. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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One experiment aimed at doing that at the CERN laboratory in Geneva, Switzerland, has managed to capture antiprotons in a device called a Penning trap and hold them for periods of up to 10 minutes. Such a crystal, confined in a Penning trap with its rotation locked to a rotating electric field, has potential applications in atomic frequency standards and quantum logic. |
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