The protonflux rises rapidly from background to peak and then declines in a relatively quick way. The same applies to the electron flux.
质子通量在上升阶段增加很快，而在下降阶段相对来说衰减也很快（尤其是在峰值附近）；
2
In solar proton events, flux of solar energetic protons increases significantly in low earth orbit, which posts a challenge to space crafts' safety.
在太阳质子事件期间，传输到近地轨道的太阳高能质子通量显著增强，给飞行器安全带来挑战。
3
The space particle composition detector aboard FY-1C satellite can simultaneously detect proton spectrum, electron integrated flux and heavy ion composition.