Transport of energetic electrons in a magnetically expanding helicon double layer plasma

Journal Article · Mon May 11 00:00:00 EDT 2009 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.3136721· OSTI ID:21294075

Takahashi, Kazunori ^[1]; Charles, Christine; Boswell, Rod; Cox, Wes ^[1]; Hatakeyama, Rikizo ^[2]

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1. Space Plasma, Power and Propulsion Group, Research School of Physics and Engineering, The Australian National University, Canberra 0200 (Australia)
2. Department of Electronic Engineering, Tohoku University, Sendai 980-8579 (Japan)

Peripheral magnetic field lines extending from the plasma source into the diffusion chamber are found to separate two regions of Maxwellian electron energy probability functions: the central, ion-beam containing region with an electron temperature of 5 eV, and region near the chamber walls with electrons at 3 eV. Along the peripheral field lines a bi-Maxwellian population with a hot tail at 9 eV is shown to both originate from electrons in the source traveling downstream across the double layer and correspond to a local maximum in ion and electron densities.

• OSTI ID: 21294075
• Journal Information: Applied Physics Letters, Vol. 94, Issue 19; Other Information: DOI: 10.1063/1.3136721; (c) 2009 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
DIFFUSION CHAMBERS
ELECTRON DENSITY
ELECTRON TEMPERATURE
EV RANGE 01-10
ION BEAMS
LAYERS
MAGNETIC FIELDS
PLASMA
PLASMA DENSITY
PLASMA SHEATH
PROBABILITY
TAIL ELECTRONS