摘要
研究发现滤纸纤维素材料在电子束辐射裂解过程中，Ｘ射线衍射峰（００２、１０１、１０１峰）的峰位均随辐照剂量的变化呈规律性变化。根据实验数据分析，电子束射线裂解了纤维素晶格和非晶处界面的分子，引起纤维素微晶尺寸变小，使纤维素Ｘ衍射峰发生向小角方向位移。实验中还发现辐照的滤纸放置４个月后，其００２峰的峰强明显小于辐照后立刻测得的数据，这可用辐照后效应来解释。
? It is found that the crystalline diffraction angles of the electron-beam irradiated filter paper cellulose shift regularly when the irradiation dose is increased Our experiments indicate that the molecules between crystalline area and amorphous area in the filter paper cellulose will be degraded by the irradiation and the cellulose molecules in the surface of crystal will come off, thus the microcrystalline dimension will be reduced and the diffraction angle will become smaller The fact that intensity of the 002 peak for filter paper samples decreases gradually with the increasing storage time can be attributed to the post-irradiation effect
出处
《核技术》
CAS
CSCD
北大核心
1997年第10期631-635,共5页
Nuclear Techniques
关键词
纤维素
滤纸
衍射峰
电子束辐照
结晶
Cellulose, Irradiation, Filter paper, Diffraction peak
