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木材经６０Ｃｏγ射线辐照时，高聚分子的共价键断裂产生自由基，主谱ｇ０＝２．０１９３的自由基随辐照剂量Ｄ按指数率Ｎａ＝Ｎ０ａ（１—ｅ－ａａＤ）变化，最后趋于饱和。衰变系数ａａ与树种有关，远小于１。辐射引发自由基强度大，衰变系数小，稳定性好。具有应用前景。
Radiation of 60 Co γ-rays in wood resulted in the formation of free radicals by the covalent bond cleavage of the high polymer molecules. The radical g0 = 2.0193 changed with the irradiation dose D at an exponential rate Na = N0a (1-e-aaD) Finally tends to be saturated. Decay coefficient aa and tree species, much less than 1. Radiation-induced free radical intensity, decay coefficient, good stability. Has the prospect of application.