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Parametric dependence of ion temperature and electron density in the SUMMA hot-ion plasma using laser light scattering and emission spectroscopyHot-ion plasma experiments were conducted in the NASA Lewis SUMMA facility. A steady-state modified Penning discharge was formed by applying a radially inward dc electric field of several kilovolts near the magnetic mirror maxima. Results are reported for a hydrogen plasma covering a wide range in midplane magnetic flux densities from 0.5 to 3.37 T. Input power greater than 45 kW was obtained with water-cooled cathodes. Steady-state plasmas with ion kinetic temperatures from 18 to 830 eV were produced and measured spectroscopically. These ion temperatures were correlated with current, voltage, and magnetic flux density as the independent variables. Electron density measurements were made using an unusually sensitive Thomson scattering apparatus. The measured electron densities range from 2.1 x 10 to the 11th to 6.8 x 10 to the 12th per cu cm.
Document ID
19800062095
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Snyder, A.
(NASA Lewis Research Center Cleveland, OH, United States)
Patch, R. W.
(NASA Lewis Research Center Cleveland, OH, United States)
Lauver, M. R.
(NASA Lewis Research Center Cleveland, Ohio, United States)
Date Acquired
August 10, 2013
Publication Date
August 1, 1980
Publication Information
Publication: Journal of Quantitative Spectroscopy and Radiative Transfer
Volume: 24
Subject Category
Plasma Physics
Accession Number
80A46265
Distribution Limits
Public
Copyright
Other

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