Townsend's First Ionization Coefficients and Sparking Potentials in Crossed Electric and Magnetic Fields

Gurumurthy, GR and Govinda, Raju GR (1975) Townsend's First Ionization Coefficients and Sparking Potentials in Crossed Electric and Magnetic Fields. In: IEEE Transactions on Plasma Science, 3 (3). pp. 131-143.

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Abstract

Townsend's first ionization coefficients have been measured in corssed electric and magnetic fields for values of B/p ranging from 0.013 TESLA. TORR-1 to 0.064 TESLA.TORR-1 and for 103 x 102¿ E/p 331 x 102 V.M-1. TORR-1 in oxygen and for 122 x 102¿ E/pÂ488 x 102 V.M-1.TORR-1 for dry air. The values of effective collision frequencies determined from the equivalent pressure (pe) concept generally increase with E/p at constant B/p and decrease with increasing B/p at constant E/p. Effective collision frequencies determined from measured sparking potentials at high values of E/p increase with decreasing E/pe. The drift velocity and mean energy of electrons in oxygen in crossed electric and magnetic fields have been derived.

Item Type:	Journal Article
Publication:	IEEE Transactions on Plasma Science
Publisher:	IEEE
Additional Information:	Copyright 1975 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Department/Centre:	Division of Electrical Sciences > High Voltage Engineering (merged with EE)
Date Deposited:	15 Jan 2010 09:44
Last Modified:	19 Sep 2010 05:48
URI:	http://eprints.iisc.ac.in/id/eprint/23974

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