On the Onset Time of Several SPE/GLE Events: Indications from High-Energy Gamma-Ray and Neutron Measurements by CORONAS-F

<table>Combined spectrum of the August 25, 2001, flare. The total flux (blue curve) was restored from CORONAS-F data, the pion-decay flux—from SONG data.</table>

Advances in Astronomy

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Figure 3

Figure 3: On the Onset Time of Several SPE/GLE Events: Indications from High-Energy Gamma-Ray and Neutron Measurements by CORONAS-F 