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Charge exchange process

A fast ion (black, +) bound to the magnetic field B hits a neutral atom (white, n). The charge is exchanged between the two reaction partners but their respective velocity vectors at the time of interaction are preserved. The neutralized atom (black, n) is no longer bound to magnetic fields an travels away as energetic neutral atom (ENA) on a ballistic trajectory whereas the newly created ion (white, +) may be accelerated and starting to gyrate around the magnetic field lines.

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