摘要
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。
Radiates wood by ̄60Coγ radiation causing the cleavage of Co-valent louds wood polymers and generated free radicals.The intensity of free radicals of major spectrum increased exponetially with the radiation dose,N.a=Noa,and finally reached a saturation state.The decay coefficient aa was related to tree species in less than 1.The free radicals of wood induced by γ-radiation has great intensity and stability,and is worth for use.
出处
《西北林学院学报》
CSCD
1994年第2期59-64,共6页
Journal of Northwest Forestry University
基金
福建省教委资助
关键词
木材
自由基
钴60
辐射
wood
60C0 γ radiation
free radicals
decay coefficent