Measurement of Plasma Potential, Ion Saturation Current and Mach number using Retarding Field Energy Analyzer

Authors

  • L. N. Mishra
  • Å. Fredriksen

DOI:

https://doi.org/10.3126/jnphyssoc.v7i2.38626

Keywords:

Plasma flows, Helicon plasma, Space plasma

Abstract

This article deals about the experimental measurement of plasma potential, ion saturation current and Mach number obtained with the variation of power, operating gas pressure and radial position using retarding field energy analyzer. We employed a retarding field energy analyzer by rotating with different angles such as 0° (facing toward source), 90° (facing side walls) and 180° (facing opposite the source). The coil current is varied from 0 to 15 A to produce the magnetic field which is used to confine the plasma. The flow of plasma has been characterized which was found to be subsonic. The low-temperature plasma is produced by means of a 13.56 MHz helicon plasma source at 300-1000 kW radio frequency power. The plasma is expanding from 13.8 cm diameter source into a 150 cm long diffusion chamber of 60 cm diameter.

Downloads

Download data is not yet available.
Abstract
116
PDF
195
Cover JNPhysSoc

Downloads

Published

2021-08-06

How to Cite

Mishra, L. N., & Fredriksen, Å. . (2021). Measurement of Plasma Potential, Ion Saturation Current and Mach number using Retarding Field Energy Analyzer. Journal of Nepal Physical Society, 7(2), 76–80. https://doi.org/10.3126/jnphyssoc.v7i2.38626

Issue

Vol. 7 No. 2 (2021)

Section

Articles

License

All right reserved. No part of this Journal may be reproduced in any form or by any electronic or mechanical means, including information storage and retrieval system, without permission in writing from the publisher, except by a reviewer who may quote brief passage in a review. The views and interpretation in this journal are those of author(s) and they are not attributable to the NPS.