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Parametric dependence of ion temperature and relative density in the NASA Lewis SUMMA facilityFurther hot-ion plasma experiments were conducted in the SUMMA superconducting magnetic mirror facility. A steady-state ExB plasma was formed by applying a strong radially inward dc electric field between cylindrical anodes and hollow cathodes located near the magnetic mirror maxima. Extending the use of water cooling to the hollow cathodes, in addition to the anodes, resulted in higher maximum power input to the plasma. Steady-state hydrogen plasmas with ion kinetic temperatures as high as 830 eV were produced. Functional relations were obtained empirically among the plasma current, voltage, magnetic flux density, ion temperature, and relative ion density. The functional relations were deduced by use of a multiple correlation analysis. Data were obtained for midplane magnetic fields from 0.5 to 3.37 tesla and input power up to 45 kW. Also, initial absolute electron density measurements are reported from a 90 deg Thomson scattering laser system.
Document ID
19780015980
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Snyder, A.
(NASA Lewis Research Center Cleveland, OH, United States)
Lauver, M. R.
(NASA Lewis Research Center Cleveland, OH, United States)
Patch, R. W.
(NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
September 3, 2013
Publication Date
January 1, 1976
Subject Category
Plasma Physics
Report/Patent Number
E-9563
NASA-TM-73770
Meeting Information
Meeting: Ann. Meeting on Plasma Phys.
Location: San Francisco
Start Date: November 14, 1976
End Date: November 18, 1976
Sponsors: Am. Phys. Soc.
Accession Number
78N23923
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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