  The solar neutron detector SEDA-FIB onboard the International Space Station
(ISS) has detected several events from the solar direction associated with
three large solar flares observed on March 5th (X1.1), 7th (X5.4), and 9th
(M6.3) of 2012. In this study, we present the time profiles of those neutrons
and discuss the physics that may be related to a possible acceleration scenario
for ions over the solar surface. We compare our data with the dynamical
pictures of the flares obtained by the ultra-violet telescope of the
space-based Solar Dynamics Observatory.

Solar and Stellar Astrophysics