Erlangen 2018 – wissenschaftliches Programm
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P: Fachverband Plasmaphysik
P 12: Magnetic Confinement - Poster
P 12.13: Poster
Dienstag, 6. März 2018, 16:15–18:15, Redoutensaal
Progress on the development of superconducting coils as confinement devices for pair plasmas — •Markus Singer1, James R. Danielson2, Marcel Dickmann1, Uwe Hergenhahn3, Juliane Horn-Stanja3, Stefan Nissl3, Harukiho Saitoh3, Eve V. Stenson3, Matthew R. Stoneking4, Thomas Sunn Pedersen3,5, and Christoph Hugenschmidt1 — 1Technische Universität München — 2University of California, San Diego, USA — 3Max-Planck-Institute for Plasma Physics — 4Lawrence University, USA — 5University of Greifswald
A plasma composed of particles with identical masses but opposite charges is predicted to feature fundamentally different phenomena compared to electron ion plasmas. Even though extensive theoretical studies have been carried out for decades, the experimental demonstration of matter-antimatter pair plasmas has not succeeded yet. The APEX project is aiming for the creation of the first magnetically confined laboratory plasma consisting of electrons and positrons, using the worlds strongest high-flux low-energy positron source NEPOMUC. Recent experiments using a prototype permanent magnet dipole trap have already demonstrated high injection efficiencies and long confinement times. The simultaneous confinement of both electrons and positrons however, requires closed unperturbed magnetic field lines. For this purpose we are developing an upgraded dipole trap using a magnetically levitated high temperature superconducting coil. This contribution will depict the progress on the transition of the confinement volume from a mechanically supported to a levitated geometry.