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

<table>Time profiles of high-energy proton channels recorded by GOES-10 and -12 on November 4, 2003. Upper two panels: proton time profiles over 4 hours around the solar flare. Red curve in upper panel shows the increase observed in gamma-ray channel &gt;90 MeV. Two lower panels: proton time profiles measured by HEPAD during enlarged time period. <svg height="15.8375" id="M33" style="vertical-align:-3.3907pt" version="1.1" viewbox="0 0 17.775 15.8375" width="17.775" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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</svg> = 19:42:30.</table>

Advances in Astronomy

fig13

Figure 13

Figure 13: On the Onset Time of Several SPE/GLE Events: Indications from High-Energy Gamma-Ray and Neutron Measurements by CORONAS-F 