TY - GEN
T1 - Low-energy neutral atoms in the Earth's magnetosphere
T2 - Instrumentation for Magnetospheric Imagery
AU - Moore, Kurt R.
AU - McComas, David J.
AU - Funsten, Herbert O.
AU - Thomsen, Michelle F.
PY - 1992
Y1 - 1992
N2 - Detection of low energy neutral atoms (LENAs) produced by the interaction of the Earth's geocorona with ambient space plasma has been proposed as a technique to obtain global information about the magnetosphere. Recent instrumentation advances reported previously and in these proceedings (McComas, et al., Funsten, et al.) provide an opportunity for detecting LENAs in the energy range of < 1 keV to approximately 50 keV. In this paper, we present results from a numerical model which calculates line of sight LENA fluxes expected at a remote orbiting spacecraft for various magnetospheric plasma regimes. This model uses measured charge exchange cross sections, either of two neutral hydrogen geocorona models, and various empirical models of the ring current and plasma sheet to calculate the contribution to the integrated directional flux from each point along the line of sight of the instrument. We discuss implications for LENA imaging of the magnetosphere based on these simulations.
AB - Detection of low energy neutral atoms (LENAs) produced by the interaction of the Earth's geocorona with ambient space plasma has been proposed as a technique to obtain global information about the magnetosphere. Recent instrumentation advances reported previously and in these proceedings (McComas, et al., Funsten, et al.) provide an opportunity for detecting LENAs in the energy range of < 1 keV to approximately 50 keV. In this paper, we present results from a numerical model which calculates line of sight LENA fluxes expected at a remote orbiting spacecraft for various magnetospheric plasma regimes. This model uses measured charge exchange cross sections, either of two neutral hydrogen geocorona models, and various empirical models of the ring current and plasma sheet to calculate the contribution to the integrated directional flux from each point along the line of sight of the instrument. We discuss implications for LENA imaging of the magnetosphere based on these simulations.
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M3 - Conference contribution
AN - SCOPUS:0027059830
SN - 0819409170
T3 - Proceedings of SPIE - The International Society for Optical Engineering
SP - 51
EP - 61
BT - Proceedings of SPIE - The International Society for Optical Engineering
PB - Publ by Int Soc for Optical Engineering
Y2 - 19 July 1992 through 19 July 1992
ER -