Having that picture in mind, we look at the light-curves again. If we really consider there is one good trap region and electrons are injected in to the region, and if the HXR represents the injection and microwaves represent the trapped ptls, then a typical relationship in time we normally expect is like (a) where red is HXR, microwave = green: the peak of the radio would have to be delayed and  smooth and gradual all the way. But in the observation it was not, there were both gradual component and impulsive peaks superimposed on the slow envelope and the peaks are simultaneous in our time resolution. So the next picture is the idea we finally brought up with. For some reason there was bifurcation into two component. Namely there are two components: the tail represents the trapped population, but instantly passing-by component (precipitation) and they are never trapped and therefore could look like HXRs. Also they should somehow stand out by themselves. The red-colored part is that. So we wanted to address the idea more quantitatively, and the problem becomes injection vs. trapping, but mixed together with two component-direct precipitation and remaining in the trap, subject to common injection. *we want to address this problem more quantitatively. Three components: 1. Injection as rep. By HXR and 2. Trapped, 3. Passing-by component.