Microwave Produced Plasma Study in a Cylindrical System

Journal Article · Wed Mar 19 04:00:00 EDT 2008 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2909135· OSTI ID:21136931

Yadav, V K ^[1]; Sathyanarayana, K; Bora, D ^[2]

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1. Centre for Space Physics, 43 Chalantika, Garia Station Road, Kolkata 700084, West Bengal (India)
2. Institute for Plasma Research, Bhat, NearIindira Bridge, Gandhinagar 382428, Gujarat (India)

Hydrogen plasma using electron cyclotron resonance (ECR) technique is produced and is studied in a small linear system for breakdown parameters. Microwave power in the experimental system is delivered by a magnetron at 2.45 GHz for 30 ms during which the breakdown of neutral gas occurs. The axial magnetic field required for ECR in the system is such that the fundamental ECR surface (B = 875 G) resides at the geometrical centre of the plasma system. ECR breakdown parameters such as plasma delay and plasma decay time are observed from plasma density measurements, carried out at the centre of plasma system using a specially designed Langmuir probe. The operating parameters such as working gas pressure (10{sup -5}-10{sup -2} mbar) and input microwave power (160-800 W) are varied and the corresponding effect on the breakdown parameters is observed and the parameter space for operating the pulsed experimental system has been identified. All the relevant experimental results obtained are presented.

• OSTI ID: 21136931
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 993; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CYLINDRICAL CONFIGURATION
ECR HEATING
ELECTRON CYCLOTRON-RESONANCE
GHZ RANGE
HIGH-FREQUENCY DISCHARGES
HYDROGEN
LANGMUIR PROBE
MAGNETIC FIELDS
MICROWAVE RADIATION
PLASMA
PLASMA DENSITY