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  • 1
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    The environment power system analysis tool development program (1990)
    In:  CASI
    Details
    Publication Date: 2013-08-31
    Description: The Environment Power System Analysis Tool (EPSAT) is being developed to provide space power system design engineers with an analysis tool for determining system performance of power systems in both naturally occurring and self-induced environments. The program is producing an easy to use computer aided engineering (CAE) tool general enough to provide a vehicle for technology transfer from space scientists and engineers to power system design engineers. The results of the project after two years of a three year development program are given. The EPSAT approach separates the CAE tool into three distinct functional units: a modern user interface to present information, a data dictionary interpreter to coordinate analysis; and a data base for storing system designs and results of analysis.
    Keywords: PLASMA PHYSICS
    Type: NASA, Marshall Space Flight Center, Current Collection from Space Plasmas; p 352-357
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 2
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    High voltage system: Plasma interaction summary (1986)
    In:  CASI
    Details
    Publication Date: 2013-08-31
    Description: The possible interactions that could exist between a high voltage system and the space plasma environment are reviewed. A solar array is used as an example of such a system. The emphasis in this review is on the discrepancies that exist in this technology in both flight and ground experiment data. It has been found that, in ground testing, there are facility effects, cell size effects and area scaling uncertainties. For space applications there are area scaling and discharge concerns for an array as well as the influence of the large space structures on the collection process. There are still considerable uncertainties in the high voltage-space plasma interaction technology even after several years of effort.
    Keywords: PLASMA PHYSICS
    Type: JPL, Space Technology Plasma Issues in 2001; p 167-193
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 3
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    Plasma interactions and surface/material effects (1986)
    In:  CASI
    Details
    Publication Date: 2013-08-31
    Description: A discussion on plasma interactions and surface/material effects is summarized. The key issues in this area were: (1) the lack of data on the material properties of common spacecraft surface materials; (2) lack of understanding of the contamination and decontamination processes; and (3) insufficient analytical tools to model synergistic phenomena related to plasma interactions. Without an adequate database of material properties, accurate system performance predictions cannot be made. The interdisciplinary nature of the surface-plasma interactions area makes it difficult to plan and maintain a coherent theoretical and experimental program. The shuttle glow phenomenon is an excellent example of an unanticipated, complex interaction involving synergism between surface and plasma effects. Building an adequate technology base for understanding and predicting surface-plasma interactions will require the coordinated efforts of engineers, chemists, and physicists. An interdisciplinary R and D program should be organized to deal with similar problems that the space systems of the 21st century may encounter.
    Keywords: PLASMA PHYSICS
    Type: Space Technology Plasma Issues in 2001; p 3-5
    Format: application/pdf
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    NASA TECHNICAL REPORTS
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