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Manipulation of the magnetron orbit of a positron cloud in a Penning trap / T Mortensen; A Deller; C. A Isaac; D. P. van der Werf; M Charlton; J. R Machacek

Physics of Plasmas, Volume: 20, Issue: 1, Start page: 012124

Swansea University Author: van der Werf, Dirk

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DOI (Published version): 10.1063/1.4789880

Abstract

We describe a simple and versatile method to manipulate the amplitude of the magnetron orbit of ions stored in a Penning trap, applied here to a cloud of low energy positrons. By applying a pulsed voltage to a split electrode in the trap, which is normally used for rotating wall compression of the p...

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Published in: Physics of Plasmas
ISSN: 1070-664X
Published: 2013
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URI: https://cronfa.swan.ac.uk/Record/cronfa14474
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Abstract: We describe a simple and versatile method to manipulate the amplitude of the magnetron orbit of ions stored in a Penning trap, applied here to a cloud of low energy positrons. By applying a pulsed voltage to a split electrode in the trap, which is normally used for rotating wall compression of the particles, the size of the magnetron orbit can be changed at will. The modified orbit has been shown to be stable for many magnetron periods. The technique could find use in applications which require off-axis ejection of particles, for instance in the filling of arrays of traps for multicell positron storage.
College: College of Science
Issue: 1
Start Page: 012124