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Fig. 2.
SOHO EPHIN measurements. Top: 1 min averaged 0.7–3.0 MeV electron intensity (divided by 500) and 30 min averaged 10–25 MeV nucleon−13He, 4He intensities. Dashed vertical lines indicate X-ray flares associated with events 1–4 (see Table 1). Bottom: helium mass spectrogram of individual PHA ions with no energy restriction.
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