Analysis of plasma dynamics of a negative ion source based on probe measurements

• Published in: Journal of applied physics Vol. 96; no. 8; pp. 4107 - 4113
• Main Authors: Bandyopadhyay, M., Tanga, A., Falter, H. D., Franzen, P., Heinemann, B., Holtum, D., Kraus, W., Lackner, K., McNeely, P., Riedl, R., Speth, E., Wilhelm, R.
• Format: Journal Article
• Language: English
• Published: United States 15.10.2004
• Subjects: 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ANIONS; CESIUM; ELECTRIC FIELDS; ELECTRON TEMPERATURE; ELECTRONS; ION SOURCES; ION TEMPERATURE; LANGMUIR PROBE; MACH NUMBER; MAGNETIC FILTERS; MOLYBDENUM; ONE-DIMENSIONAL CALCULATIONS; PLASMA; PLASMA DENSITY; PLASMA SHEATH; PRESSURE GRADIENTS; TUNGSTEN

Measurements and analysis of the plasma flow in an ion source made for negative ion extraction are reported in this article. The plasma flow has been measured using a Mach probe having two orthogonal probe heads. The plasma flow along the axis is driven by the electron pressure gradient, dragging al...