Gas and particle velocity measurements in an induction plasma
- Resource Type
- Conference
- Authors
- Source
- Conference: 5. international symposium on plasma chemistry, Edinburgh, UK, 10 Aug 1981; Other Information: Portions are illegible in microfiche products
- Subject
- 70 PLASMA PHYSICS AND FUSION TECHNOLOGY PLASMA JETS
ANEMOMETERS
ARGON
DOPPLER EFFECT
INDUCTION
PLASMA
VELOCITY
ELEMENTS
FLUIDS
GASES
MEASURING INSTRUMENTS
NONMETALS
RARE GASES 700104* -- Fusion Energy-- Plasma Research-- Plasma Kinetics-Experimental-- (-1987)
- Language
- English
Laser doppler anemometry was used for the measurements of the plasma and particle velocity profiles in the coil region of an inductively coupled plasma. Results are reported for a 50 mm ID induction torch operated at atmospheric pressure with argon as the plasma gas. The oscillator frequency was 3 MHz and the power in the coil was varied between 4.6 and 10.5 kW. The gas velocity measurements were made using a fine carbon powder as a tracer (dp approx. = 1 ..mu..m). Measurements were also made with larger silicon particles (dp = 33 ..mu..m and sigma = 13 ..mu..m) centrally injected in the plasma under different operating conditions.