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Measurement of Plasma Density in Brass Arc Plasma at Atmospheric Pressure Using a Langmuir Single Probe



Author(s)

Ghanshyam Thakur¹, Raju Khanal¹ and Bijoyendra Narayan²

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DOI:10.17265/2161-6221/2018.7-8.002

1. Central Department of Physics, Tribhuvan University, Kirtipur, Kathmandu 44600, Nepal
2. Dr. S. K. S. Women’s College, Motihari (B. R. A. Bihar University, Muzzafarpur), Bihar 44600, India

In this work, we construct electrodes of brass to produce plasma by arc discharge and is characterized by using a movable Langmuir single probe. It is a simple way to measure plasma parameters such as electron temperature, electron density and ion density. A movable Langmuir single probe technique has a reference point since it is biased with reference to any one electrode of the plasma producing system. The values obtained are at atmospheric pressure. The plasma thus produced in laboratory has various applications which include gaseous discharge, plasma torch, sputtering, laser produced plasma as well as tokamak plasma.

Brass electrode, single probe, electron temperature, electron density, ion density.