Temperature Dependent Electron Transport Studies for Diffuse Discharge Switching Applications
Abstract
A diffuse gas discharge switch must be capable of high speed, repetitive switching (i.e., switching times <10(expn -6) s; repetition rates up to 10(expn 4) Hz; lifetimes up to 10(expn 7) shots) without significant degradation of its electron conduction and opening characteristics if it is to be useful in pulsed power switching applications. Whenever the switch is fired, the gas temperature T within the switch is expected to rise several degrees centigrade, and operating temperatures of several hundred degrees are likely for repetitively operated switches. The electron transport and rate coefficients, such as the electron drift velocity and the electron attachment coefficient for the most promising gas mixtures under study are expected to be functions of T, and consequently, knowledge of these parameters as a function of T is desirable for modeling the operation of the diffuse discharge switch in practical application. Measurements of these parameters in C2F6 /buffer gas (Ar, CH4, N2 } mixtures have been made and are reported.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1985
- Accession Number
- ADA638603
Entities
People
- J. G. Carter
- L. G. Christophorou
- S. M. Spyrou
- Susan R. Hunter
Organizations
- Oak Ridge National Laboratory