Positron orbit effects during injection and confinement in a magnetic dipole 
trap

Nißl, S.; Stenson, E. V.; Hergenhahn, Uwe; Horn-Stanja, J.; Pedersen, T. Sunn; Saitoh, H.; Hugenschmidt, C.; Singer, M.; Stoneking, M. R.; Danielson, J. R.

doi:10.1063/5.0007252

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Positron orbit effects during injection and confinement in a magnetic dipole trap

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Hergenhahn, Uwe
Max Planck Institute for Plasma Physics;
Molecular Physics, Fritz Haber Institute, Max Planck Society;

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Citation

Nißl, S., Stenson, E. V., Hergenhahn, U., Horn-Stanja, J., Pedersen, T. S., Saitoh, H., et al. (2020). Positron orbit effects during injection and confinement in a magnetic dipole trap. Physics of Plasmas, 27(5): 052107. doi:10.1063/5.0007252.

Cite as: https://hdl.handle.net/21.11116/0000-0006-925F-B

Abstract

Lossless injection of positrons into a magnetic dipole trap and their subsequent confinement have been demonstrated. Here, we investigate by numerical single-particle simulations how the radial distribution of positrons in the trap is affected by the measurement itself, the choice of injection parameters, the asymmetry of the electric potential, and by elastic collisions. The results are compared to experimental data. A comprehensive understanding of these effects is a milestone on the road to creating an electron–positron plasma in a trap with a levitating superconducting coil.