Energetic neutral atom imaging detectors for fusion and space plasmas

Earl E. Scime, Herbert O. Funsten, David J. McComas

Research output: Contribution to journalConference articlepeer-review


The past few years has seen a growing interest in the detection and imaging of energetic neutral hydrogen atoms emitted from magnetospheric plasmas. These energetic neutral atoms are created by charge exchange collisions between cold geocoronal neutral hydrogen and energetic magnetospheric hydrogen ions. We have developed two approaches suitable for energetic neutral atom imaging. One approach relies on sub-micron period transmission gratings to separate the neutral atoms from any extreme ultraviolet and soft x-ray background and the other uses a thin foil ionization process to separate the neutrals from the background. Both approaches have broad applications to the detection of energetic neutral atoms in both laboratory and space plasmas. We will present a conceptual design of a high sensitivity, large throughput magnetospheric energetic neutral atom imager and discuss the applications of this instrument for the edge and divertor regions of large tokamak plasmas.

Original languageEnglish (US)
Pages (from-to)134
Number of pages1
JournalIEEE International Conference on Plasma Science
StatePublished - 1994
Externally publishedYes
EventProceedings of the IEEE International Conference on Plasma Science - Santa Fe, NM, USA
Duration: Jun 6 1994Jun 8 1994

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Electrical and Electronic Engineering


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