Dynamic trapping: Neutralization of positive space charge in a collisionless magnetized plasma
1990 (English)In: Physical Review Letters, ISSN 00319007, Vol. 65, 859-866 p.Article in journal (Refereed) Published
It is shown by numerical simulations that in a collisionless plasma electron inertia leads to inefficient neutralization of positive space charge and allows large positive potentials (Ï† â‰« kTe/e) to be established and maintained on the time scale of ion motion. This is true even if the buildup of positive space charge is so slow that it corresponds to a small fraction of the random electron current of the surrounding plasma. A simple physical model clarifies the physics of the process and provides an analytical expression for the potential.
Place, publisher, year, edition, pages
1990. Vol. 65, 859-866 p.
Fusion, Plasma and Space Physics
IdentifiersURN: urn:nbn:se:kth:diva-92948DOI: 10.1103/PhysRevLett.65.859OAI: oai:DiVA.org:kth-92948DiVA: diva2:514330
cited By (since 1996) 3 NR 201408052012-04-072012-04-072012-04-07Bibliographically approved