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Barium release systemA chemical system is described for releasing a good yield of free barium neutral atoms and barium ions in the upper atmosphere and interplanetary space for the study of the geophysical properties of the medium. The barium is released in the vapor phase so that it can be ionized by solar radiation and also be excited to emit resonance radiation in the visible range. The ionized luminous cloud of barium becomes a visible indication of magnetic and electrical characteristics in space and allows determination of these properties over relatively large areas at a given time.
Document ID
19730021365
Acquisition Source
Legacy CDMS
Document Type
Other - Patent
Authors
Lewis, B. W. (Temple Univ. Research Inst. Philadelphia, PA, United States)
Stokes, C. S. (Temple Univ. Research Inst. Philadelphia, PA, United States)
Smith, E. W. (Temple Univ. Research Inst. Philadelphia, PA, United States)
Murphy, W. J. (Temple Univ. Research Inst. Philadelphia, PA, United States)
Date Acquired
September 2, 2013
Publication Date
August 14, 1973
Subject Category
Chemistry
Report/Patent Number
Patent Number: NASA-CASE-LAR-10670-1
Patent Number: US-PATENT-3,751,913
Patent Application Number: US-PATENT-APPL-SN-59892
Accession Number
73N30097
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Patent
NASA-CASE-LAR-10670-1|US-PATENT-3,751,913
Patent Application
US-PATENT-APPL-SN-59892

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