ACE-sepica sm.jpg

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Summary

DescriptionACE-sepica sm.jpg	English: Instrument of the scientific satellite Advanced Composition Explorer.The Solar Energetic Particle Ionic Charge Analyzer (SEPICA) determines the ionic charge state, elemental composition, and energy spectra of energetic solar ions. This is vital information in studying the material accelerated in solar events. It also allows us to learn more about element and isotope selection processes and particle acceleration on the Sun. During solar quiet times, SEPICA directly measures the charge of ACR ions (described later), including nitrogen, oxygen, and neon. It covers a range from 0.5 MeV/charge to about 5 MeV/charge for charge state composition, and up to 10 MeV/nucleon for element analysis (a nucleon is a particle from the nucleus, either a proton or a neutron). Français : Instrument du satellite scientifique Advanced Composition Explorer (ACE) lancé en 1997. Le Solar Energetic Particle Ionic Charge Analyzer (SEPICA) permet de déterminer la charge électrique, le type d'élément et l'énergie des ions émis par le Soleil ayant une énergie comprise entre 0,5 et 10 MeV par nucléon.
Date	circa 1997 date QS:P,+1997-00-00T00:00:00Z/9,P1480,Q5727902
Source	http://www.srl.caltech.edu/ACE/Gallery/gallery.html
Author	NASA

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