Speaker
Description
Laboratory studies of magnetically confined electron-positron “pair” plasmas are a compelling frontier in fundamental plasma physics research; this is the goal of A Positron Electron eXperiment. The overall project plan involves installing several small plasma devices together at the world-class NEPOMUC positron source at FRM II. Positrons will be accumulated and stored in a series of linear, non-neutral plasma traps; these will then feed e+ pulses to either of two tabletop-sized, toroidal confinement devices with complementary magnetic topologies. In the levitating dipole APEX-LD (Levitating Dipole) and the stellarator EPOS (Electrons and Positrons in an Optimized Stellarator) – both based on HTS coils – the positrons will be combined with electrons and their plasma properties investigated. To date, all of these devices have been developed and operated separately; within coming year, they will start to be installed together in the new e+ experiment space of FRM II's East Hall.
