performance of erne in particle flux anisotropy measurement

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ID: 224107
1996
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Abstract
The HED particle detector of the ERNE experiment to be flown on the SOHO spacecraft is unique compared to the earlier space-born detectors in its high directional resolution (better than 2°, depending on the track inclination). Despite the fixed view cone due to the three-axis stabilization of the spacecraft, the good angular and temporal resolution of the detector provides a new kind of opportunity for monitoring in detail the development of the anisotropies pertaining, for example, to the onset of SEP events, or passage of shock fronts related to gradual events. In order to optimize the measurement parameters, we have made a preflight simulation study of the HED anisotropy measurement capabilities. The purpose was to prove the feasibility of the selected measurement method and find the physical limits for the HED anisotropy detection. The results show HED to be capable of detecting both strong anisotropies related to impulsive events, and smoother anisotropies associated with gradual events.
Reference Key
riihonen1996annalesperformance Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;E. Riihonen;J. Torsti;A. Anttila;J. Kuusela;M. Lumme;E. Valtonen
Journal journal of food measurement and characterization
Year 1996
DOI
10.1007/s00585-996-0503-y
URL
https://www.ann-geophys.net/14/503/1996/angeo-14-503-1996.pdf
Keywords
cosmic physics sciencephysicsgeophysics

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