Physics
Scientific paper
Jan 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001stin...0177036f&link_type=abstract
Technical Report, DE2001-767261; LA-UR-00-5435
Physics
Neutral Atoms, Imaging Techniques, Ionization, Heliosphere, Interstellar Matter, Electrostatics, Deflection, Foils (Materials)
Scientific paper
Energetic neutral atom (ENA) emission from the interaction region between the heliosphere and the local interstellar medium (LISM) should enable remote observation of this regions structure and dynamics. This will allow us to understand the complex physics of the interaction and will help distinguish between competing models of the region. In this paper, we describe the imaging technique of ENA ionization by an ultrathin transmission foil followed by electrostatic deflection and coincidence detection. New laboratory results demonstrate the ability of this technique to detect ENAs over the energy range 0.2-6 keV that is not covered by any traditional ENA instrumentation but is critical for understanding the physics of the process that govern the interaction region. This technique has a large intrinsic geometric factor that will enable imaging of the extremely dim ENA emission and will allow quantification of the important characteristics of the outer heliosphere-LISM interaction region.
Funsten Herbert O.
Gruntman Michael A.
McComas David John
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