Conveners
Plasma related Physics
- Michael Charlton (Swansea University)
Many of the instabilities that are common to magnetically confined ion-electron plasmas are expected to be suppressed in electron-positron "pair" plasmas. The goal of APEX (A Positron Electron eXperiment) is to create and confine a pair plasma by combining separate non-neutral plasmas of electrons and positrons. Challenges associated with this task include (i) the construction of a trap that...
The ALPHA experiment produces and traps antihydrogen atoms by slowly mixing antiprotons and positrons in a Penning-Malmberg trap. Using various techniques, ALPHA measures many properties of these atoms, for example, their interaction with gravity [1], allowing for a comparison between antihydrogen and hydrogen. Accumulating a large number of atoms (in the order of thousands) is imperative for...
Positron and proton sources, and traps have played a pivotal role for the antimatter research taking place both in Vienna and at CERN as part of the ASACUSA collaboration.
At home in Vienna, we have designed and constructed a positron beamline which uses a conventional $^{22}$Na source and Ne moderator to produce a beam which is trapped and conditioned for experiments in a Surko-type...
The ASACUSA-Cusp experiment aims to perform spectroscopy of the hyperfine structure of antihydrogen by producing a beam of cold, spin polarised, ground state antihydrogen. The beam will be produced by mixing positrons and antiprotons in our unique Cusp trap which uses a pair of superconducting coils in an anti-Helmholtz configuration to produce a magnetic field capable of both confining the...
