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Precision spectroscopy of a charged particle in an imperfect Penning trap

Lowell S. Brown and Gerald Gabrielse
Phys. Rev. A 25, 2423(R) – Published 1 April 1982
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Abstract

The phenomenal accuracies achieved for the spectroscopy of single charged particles suspended in Penning traps has prompted this study of the imperfect Penning trap. The principal result is a new prescription for the cyclotron frequency in terms of the observable eigenfrequencies of the imperfect trap. The new prescription is completely insensitive to a misalignment of the magnetic field direction with the axis of the Penning electrodes, and it is also insensitive to the most significant imperfections in the electrostatic potential. These systematic effects can therefore be completely circumvented in measurements of the anomalous magnetic moments of the electron and positron, and also in experiments on protons and heavier ions where the effects are much larger.

  • Received 30 November 1981

DOI:https://doi.org/10.1103/PhysRevA.25.2423

©1982 American Physical Society

Authors & Affiliations

Lowell S. Brown and Gerald Gabrielse

  • Department of Physics, FM 15, University of Washington, Seattle, Washington 98195

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Issue

Vol. 25, Iss. 4 — April 1982

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