Instrumentation for Global Magnetospheric Imaging Via Energetic Neutral Atoms

  1. J. H. Waite Jr.,
  2. J. L. Burch and
  3. R. L. Moore
  1. R. W. McEntire and
  2. D. G. Mitchell

Published Online: 18 MAR 2013

DOI: 10.1029/GM054p0069

Solar System Plasma Physics

Solar System Plasma Physics

How to Cite

McEntire, R. W. and Mitchell, D. G. (1989) Instrumentation for Global Magnetospheric Imaging Via Energetic Neutral Atoms, in Solar System Plasma Physics (eds J. H. Waite, J. L. Burch and R. L. Moore), American Geophysical Union, Washington, D. C.. doi: 10.1029/GM054p0069

Author Information

  1. Johns Hopkins University, Applied Physics Laboratory, Laurel, MD 20707

Publication History

  1. Published Online: 18 MAR 2013
  2. Published Print: 1 JAN 1989

ISBN Information

Print ISBN: 9780875900742

Online ISBN: 9781118664315

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Keywords:

  • Space plasmas;
  • Sun;
  • Magnetosphere;
  • Astrophysics

Summary

The global imaging of magnetospheric hot plasma regions by the remote detection of their emission of energetic neutral atoms (ENAs) is a promising technique which awaits the development of appropriate instruments and flight opportunities. Measurements by the medium-energy particle instrument on ISEE 1 have demonstrated the feasibility of this approach, and an optimized instrument should provide a much richer scientific return. Many of the components and subsystems of such an instrument have a strong heritage or can be directly adapted from recent flight-proven instruments designed for more conventional measurements. Factors contributing to a particular choice of instrument configuration include scientific goals, orbit, expected signal and background levels, spacecraft stabilization, spacecraft resources, etc. The remote sensing of global magnetospheric dynamics is a fundamentally important scientific objective, and future planetary magnetospheric missions will probably include ENA imaging capability. Different mission parameters may make desirable fundamentally different sensor design approaches, but the technology for these sensors is now in hand.