Results of a Measurement of Solar Neutrons Emitted on March 5, 2012 using a Fiber-type neutron monitor onboard the SEDA-AP attached to the ISS

TL;DR

This paper reports on measurements of solar neutrons detected by a fiber-type neutron monitor on the ISS during three major solar flares in March 2012, analyzing their time profiles and potential acceleration mechanisms.

Contribution

It presents the first detailed neutron measurements from the SEDA-FIB detector during specific solar flares and compares these data with solar dynamics observations.

Findings

Detected neutron events correlated with solar flares.

Analyzed neutron time profiles and possible acceleration scenarios.

Compared neutron data with solar UV observations.

Abstract

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.