Experiments with trapped positron plasmas

Details Experiments with trapped positron plasmas Experiments with trapped positron plasmas

Apr 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995aipc..331...70g&link_type=abstract

Non-neutral plasma physics II: The Berkeley workshop on non-neutral plasmas in traps. AIP Conference Proceedings, Volume 331, p

Physics

Plasma Physics

Electrons

Scientific paper

Cold positron plasmas are accumulated in a Penning trap by collisions with a nitrogen buffer gas. The trapped plasmas can be manipulated and diagnosed using nondestructive techniques, and they are being used for a range of physics experiments. One topic is the study of the physics of electron-positron plasmas, in which the masses of both charge species are equal. Another topic is the study of the interaction of slow positrons with various forms of ordinary matter. These experiments can address important issues in atomic and molecular physics, condensed matter physics and gamma-ray astrophysics. In this paper, we present an overview of the state of positron source and trapping technology. We then go on to describe recent progress in the accumulation and manipulation of cold positron plasmas and discuss experiments to study the electron-beam/positron plasma system, as well as the interaction of cold positrons with a variety of molecules.

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