Measurement by FIB on the ISS: Two Emissions of Solar Neutrons Detected?

Figure 12

The departure time distribution of solar neutrons. The histogram has been made being based on neutrons detected within a cone angle of 20 degrees from the solar direction. From the energy, the time of flight was calculated and converted the value into the departure time of neutrons from the Sun. There were two bumps around 19 : 48 UT and 19 : 52 UT.