Investigation of 2.45 GHz Microwave Radiated Argon Plasma under Magnetized Condition

Autor: Mallick, Chinmoy, Bandyopadhyay, Mainak, Kumar, Rajesh, Tewari, Somesh
Jazyk: angličtina
Rok vydání: 2016
Předmět:
DOI: 10.18429/jacow-ecris2016-wepp42
Popis: Compact microwave discharged ECRIS is one of the most popular devices for space propulsion and material processing .This work models microwave plasma coupling in 2D axis symmetric and investigates plasma parameters and modified electric field in plasma environment. A microwave field of the order of 1.3 x10⁵ V/m is obtained at the center of plasma chamber cavity for an input microwave power of 500W. Microwave radiated plasma has a maximum density of 9.04 x10¹⁶ / m3 after some microwave periods (0.01s).The steady state peak electron temperature is around 3eV under 1 mbar pressure of argon gas. Most of power deposition takes place on the ECR surface which is the 875G contour resonating with the electron frequency. Steady state argon plasma results show that beyond critical plasma density of 7.4x10¹⁶ / m3 most of the microwave power is deposited at the plasma edge.
Proceedings of the 22nd Int. Workshop on ECR Ion Sources, ECRIS2016, Busan, Korea
Databáze: OpenAIRE