对ＮａＦ晶体和ＮａＦ：ＯＨ－晶体在电子束辐照前后及在氮分子激光作用下的红外和紫外光谱进行了研究。认为激光强度能否使ＯＨ－分解，决定着Ｆ２＋心的再生或退电离。 The infrared and ultraviolet spectra of NaF crystal and NaF: OH crystal were studied before and after electron beam irradiation and nitrogen molecular laser. That the laser intensity can make OH - decomposition, determines the F2 + heart regeneration or deionization.