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Observation of mode transition and low-frequency oscillations in magnetically constricted anode

Authors :
S. Mukherjee
Mukesh Ranjan
S. Chauhan
Mainak Bandyopadhyay
Source :
Physics of Plasmas. 23:123524
Publication Year :
2016
Publisher :
AIP Publishing, 2016.

Abstract

We report on the discharge behaviour and the mode transition observed in a magnetically constricted anode device. With an increase in pressure, the central droplet shaped glow shrunk and abruptly switched to peripheral glow mode for pressure above 5×10−2 mbar. This transition is observed when the width of the droplet shaped glow at the anode approaches the diameter of the central magnet. The mode transition is observed as a sudden jump in the discharge current, which obeys a different power law than the previous discharge mode. Further, this new mode is observed to accompany the global oscillations in the range of few kHz.

Details

ISSN :
10897674 and 1070664X
Volume :
23
Database :
OpenAIRE
Journal :
Physics of Plasmas
Accession number :
edsair.doi...........0e8477a7aaa989ff54d51959352f3981
Full Text :
https://doi.org/10.1063/1.4972533