Hannover 2020 – wissenschaftliches Programm

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P: Fachverband Plasmaphysik

P 19: Helmholtz Graduate School 4 and Magnetic confinement 4

P 19.6: Vortrag

Donnerstag, 12. März 2020, 12:55–13:10, b305

An Intense Pulsed Positron Source (IPPS) — •Stephan König¹, Martin Singer², Lutz Schweikhard¹, and Thomas Sunn Pedersen² — ¹Institut für Physik, Universität Greifswald — ²Max-Planck-Institut für Plasma Physik

In a typical plasma the mass difference between the electrons and ions leads to instabilities and wave phenomena. It is predicted that in a positron-electron plasma due to the mass equality many of these phenomena will vanish. The APEX (A Positron Electron eXperiment) collaboration aims for the production of the first electron-positron plasma. One part of this collaboration is the Intense Pulsed Positron Source (IPPS), for the accumulation and storage of large numbers (∼10¹¹) of positrons in multiple Penning traps. From those devices the positrons will be guided to a levitated dipole for the intended electron-positron experiments. In this contribution first measurements with only one Penning trap in a 3.1T superconducting magnet are presented. This includes basic measurements like trap alignment, control of diocotron motion and plasma compression by rotating-wall application.