辐射电离效应

最大值在0900UT（磁中午）附近，这是极隙区软电子沉降、极区等离子体对流和光辐射电离效应等诸多因素综合作用的结果，形成了所谓的磁中午异常。

It may be effected synthetically by the low energy electron precipitation in cusp region , the high latitude plasma convection and the solar radiation , resulted in so called F region magnetic noon phenomena .

夏季极昼时，太阳EUV辐射的电离效应使电离层电离密度比冬季值大许多，而且，日变化的最大值时间也提前了1～2h。

During the summer polar daylight , the ionized effect of the solar EUV radiation makes the ionospheric electron density much larger and the peak time of the diurnal variation of f oF 2 1-2 hr earlier than that in winter .

本文从理论上分析了电离辐射环境对光栅折射率的影响，并用电子辐射模拟电离辐射效应，进行了实验研究。

In this article , the radiation influence to the refractive index of FBG is theoretically analyzed and the reliability of fiber Bragg gratings was evaluated in the electron radiation simulation of the space ionizing radiation .