Manipulation of the magnetron orbit of a positron cloud in a Penning trap | Zendy

T. Mortensen | Zendy; A. Deller | Zendy; C. A. Isaac | Zendy; D. P. van der Werf | Zendy; M. Charlton | Zendy; J. R. Machacek | Zendy

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Manipulation of the magnetron orbit of a positron cloud in a Penning trap

Author(s) -

T. Mortensen,

A. Deller,

C. A. Isaac,

D. P. van der Werf,

M. Charlton,

J. R. Machacek

Publication year - 2013

Publication title -

physics of plasmas

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.75

H-Index - 160

eISSN - 1089-7674

pISSN - 1070-664X

DOI - 10.1063/1.4789880

Subject(s) - physics , penning trap , orbit (dynamics) , cavity magnetron , atomic physics , trap (plumbing) , plasma , positron , ion trap , ion , nuclear physics , computational physics , electron , aerospace engineering , meteorology , quantum mechanics , thin film , engineering , sputtering

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

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