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Title: A gas puff experiment for partial simulation of compact toroid formation on MARAUDER

Abstract

Preliminary results will be reported of a single valve gas puff experiment to determine spatial and spectral distribution of a gas during the early ionization stages. This experiment has been developed as a diagnostic test-bed for partial simulation of compact toroid formation on MARAUDER. The manner in which the experimental hardware has been designed allows for a wide range of diagnostic access to evaluate early time evolution of the ionization process. This evaluation will help contribute to a clearer understanding of the initial conditions for the formation stage of the compact toroid in the MARAUDER experiment, where 60 of the same puff valves are used. For the experiment, a small slice of the MARAUDER cylindrical gas injection and expansion region geometry have been re-created but in cartesian coordinates. All of the conditions in the experiment adhere as closely as possible to the MARAUDER experiment. The timing, current rise time, capacitance, resistance and inductance are appropriate to both the simulation of one of the 60 puff valves and current delivery to the load. Both time-resolved images and spectral data have been gathered for visible light emission of the plasma. Processed images reveal characteristics of spatial distribution of the current. Spectral datamore » provide information with respect to electron temperature and density, and entrainment of contaminants.« less

Authors:
;  [1];  [2];  [3]
  1. Univ. of New Mexico, Albuquerque, NM (United States)|[Phillips Lab., Kirtland AFB, NM (United States)
  2. Phillips Lab., Kirtland AFB, NM (United States)
  3. Univ. of New Mexico, Albuquerque, NM (United States)
Publication Date:
OSTI Identifier:
46176
Report Number(s):
CONF-940604-
ISBN 0-7803-2006-9; TRN: 95:011234
Resource Type:
Conference
Resource Relation:
Conference: 1994 Institute of Electrical and Electronic Engineers (IEEE) international conference on plasma science, Santa Fe, NM (United States), 6-8 Jun 1994; Other Information: PBD: 1994; Related Information: Is Part Of IEEE conference record -- Abstracts; PB: 252 p.
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION; COMPACT TORUS; GAS INJECTION; PLASMA DIAGNOSTICS; VISIBLE RADIATION; ELECTRIC CURRENTS; PLASMA PRODUCTION; SIMULATION

Citation Formats

Englert, S.E., Englert, T.J., Degnan, J.H., and Gahl, J.M. A gas puff experiment for partial simulation of compact toroid formation on MARAUDER. United States: N. p., 1994. Web.
Englert, S.E., Englert, T.J., Degnan, J.H., & Gahl, J.M. A gas puff experiment for partial simulation of compact toroid formation on MARAUDER. United States.
Englert, S.E., Englert, T.J., Degnan, J.H., and Gahl, J.M. Sat . "A gas puff experiment for partial simulation of compact toroid formation on MARAUDER". United States. doi:.
@article{osti_46176,
title = {A gas puff experiment for partial simulation of compact toroid formation on MARAUDER},
author = {Englert, S.E. and Englert, T.J. and Degnan, J.H. and Gahl, J.M.},
abstractNote = {Preliminary results will be reported of a single valve gas puff experiment to determine spatial and spectral distribution of a gas during the early ionization stages. This experiment has been developed as a diagnostic test-bed for partial simulation of compact toroid formation on MARAUDER. The manner in which the experimental hardware has been designed allows for a wide range of diagnostic access to evaluate early time evolution of the ionization process. This evaluation will help contribute to a clearer understanding of the initial conditions for the formation stage of the compact toroid in the MARAUDER experiment, where 60 of the same puff valves are used. For the experiment, a small slice of the MARAUDER cylindrical gas injection and expansion region geometry have been re-created but in cartesian coordinates. All of the conditions in the experiment adhere as closely as possible to the MARAUDER experiment. The timing, current rise time, capacitance, resistance and inductance are appropriate to both the simulation of one of the 60 puff valves and current delivery to the load. Both time-resolved images and spectral data have been gathered for visible light emission of the plasma. Processed images reveal characteristics of spatial distribution of the current. Spectral data provide information with respect to electron temperature and density, and entrainment of contaminants.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sat Dec 31 00:00:00 EST 1994},
month = {Sat Dec 31 00:00:00 EST 1994}
}

Conference:
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