Experiments on pure electron plasmas confined in a toroidal geometry

Journal Article · Fri Dec 10 00:00:00 EST 1999 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.1302142· OSTI ID:21210381

Nakashima, Chihiro; Yoshida, Zensho; Morikawa, Junji; Himura, Haruhiko; Kakuno, Hidekazu; Tahara, Shigeru; Shibayama, Norihisa ^[1]

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1. University of Tokyo, Graduate School of Frontier Sciences, Tokyo, 113-0033 (Japan)

The toroidal magnetic trap has an advantage in achieving long orbit lengths, which allows us to apply a slow process of energy reduction to the trapped particles. On Proto-RT (Prototype Ring Trap), we have demonstrated the confinement of a pure electron plasma without the help of external electric fields. We have injected electrons with the energy of 2 keV inside a separatrix. The electrostatic potential of the electron cloud is of order 100 V. The corresponding density of the electron plasma is calculated to be of order 10{sup 13} m{sup -3}. In order to modulate the kinetic energy of the electrons we are now planning RF assisted injection of electrons.

• OSTI ID: 21210381
• Journal Information: AIP Conference Proceedings, Vol. 498, Issue 1; Conference: Workshop on non-neutral plasma physics III, Princeton, NJ (United States), 2-5 Aug 1999; Other Information: DOI: 10.1063/1.1302142; (c) 1999 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
BEAM INJECTION
ELECTRIC FIELDS
ELECTRIC POTENTIAL
ELECTRON BEAMS
ELECTRONS
KEV RANGE
MAGNETIC CONFINEMENT
MAGNETIC FIELDS
PLASMA
PLASMA DENSITY
TRAPPING
TRAPS