Creation and uses of positron plasmas

Advances in positron trapping techniques have led to room‐temperature plasmas of 107 positrons with lifetimes of 103 s. Improvements in plasma manipulation and diagnostic methods make possible a variety of new experiments, including studies just being initiated of electron–positron plasmas. The larg...

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Bibliographic Details
Published in:Physics of plasmas 1994-05, Vol.1 (5), p.1439-1446
Main Authors: Greaves, R. G., Tinkle, M. D., Surko, C. M.
Format: Article
Language:English
Subjects:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ANNIHILATION
ANTILEPTONS
ANTIMATTER
ANTIPARTICLES
BASIC INTERACTIONS
CROSS SECTIONS
ELECTROMAGNETIC INTERACTIONS
ELECTROMAGNETIC RADIATION
ELECTRON-POSITRON INTERACTIONS
ELEMENTARY PARTICLES
FERMIONS
GAMMA RADIATION
INTERACTIONS
IONIZING RADIATIONS
LEPTON-LEPTON INTERACTIONS
LEPTONS
MATTER
PARTICLE INTERACTIONS
PARTICLE SOURCES
PLASMA DIAGNOSTICS
PLASMA PRODUCTION
PLASMA WAVES
POSITRON SOURCES
POSITRONS
RADIATION SOURCES
RADIATIONS 700390 > Other Plasma Physics Studies-- (1992-)
TRAPPING
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Summary:Advances in positron trapping techniques have led to room‐temperature plasmas of 107 positrons with lifetimes of 103 s. Improvements in plasma manipulation and diagnostic methods make possible a variety of new experiments, including studies just being initiated of electron–positron plasmas. The large numbers of confined positrons have also opened up a new area of positron annihilation research, in which the annihilation cross sections for positrons with a variety of molecules have been measured, as well as the energy spread of the resulting gamma rays. Such measurements are of interest for fundamental physics and for the modeling of astrophysical plasmas.
ISSN:1070-664X
1089-7674
DOI:10.1063/1.870693