Effect of energetic electrons on dust charging in hot cathode filament discharge

Journal Article · Tue Mar 15 00:00:00 EDT 2011 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.3568841· OSTI ID:21537340

Kakati, B; Kausik, S S; Saikia, B K ^[1]; Bandyopadhyay, M ^[2]

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1. Centre of Plasma Physics, Institute for Plasma Research, Nazirakhat, Sonapur 782 402, Kamrup, Assam (India)
2. ITER-India, Institute for Plasma Research, Bhat, Gandhinagar 382 428 (India)

The effect of energetic electrons on dust charging for different types of dust is studied in hydrogen plasma. The hydrogen plasma is produced by hot cathode filament discharge method in a dusty plasma device. A full line cusped magnetic field cage is used to confine the plasma elements. To study the plasma parameters for various discharge conditions, a cylindrical Langmuir probe having 0.15 mm diameter and 10.0 mm length is used. An electronically controlled dust dropper is used to drop the dust particles into the plasma. For different discharge conditions, the dust current is measured using a Faraday cup connected to an electrometer. The effect of secondary emission as well as discharge voltage on charging of dust grains in hydrogen plasma is studied with different dust.

• OSTI ID: 21537340
• Journal Information: Physics of Plasmas, Vol. 18, Issue 3; Other Information: DOI: 10.1063/1.3568841; (c) 2011 American Institute of Physics; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
DUSTS
ELECTRIC DISCHARGES
ELECTROMETERS
ELECTRON EMISSION
FARADAY CUPS
FILAMENTS
HYDROGEN
LANGMUIR PROBE
PLASMA
SECONDARY EMISSION
TAIL ELECTRONS
BEAM MONITORS
ELECTRIC MEASURING INSTRUMENTS
ELECTRIC PROBES
ELECTRICAL EQUIPMENT
ELECTRONS
ELEMENTARY PARTICLES
ELEMENTS
EMISSION
EQUIPMENT
FERMIONS
LEPTONS
MEASURING INSTRUMENTS
MONITORS
NONMETALS
PROBES