摘要
讨论了北京同步辐射装置的４Ｗ１Ｃ光束线和Ｘ射线漫散射实验站的技术特点．利用在漫散射实验站上获得的能量分辨率为４．４×１０－４、光斑大小为０．５ｍｍ（水平）×０．３ｍｍ（垂直）的聚焦单色Ｘ射线光束，研究了准周期非晶多层膜的Ｘ射线漫散射──非镜面散射．实验结果表明，准周期多层膜的漫散射强度分布在倒空间中与表面平行的条纹上并形成散射强度的调制．对散射强度调制进行的模拟计算得到相当满意的结果．
Technical specifications of Beam-line 4W1C and X-ray diffuse scattering station at Beijing Synchrotron Radiation Facility(BSRF)were discussed. Double focussed monochromatic X-ray beam,with energy resolution of 4.4-×10-4 and beam spot of 0.5mm(H)×0.3mm(V),was obtained with a bent crystal mdnochromator shaped in triangular and a cylindric mirror.Nonspecular X-ray scattering from quasiperiodic amorphous multilayer was studied.The scattering maximums formed intensity streaks in the reciprocal space having the quasiperiodic character.Intensity modulations were observed and simulations based on atomic scattering gave satisfactory results.
出处
《高能物理与核物理》
CSCD
北大核心
1996年第5期460-467,共8页
High Energy Physics and Nuclear Physics
关键词
X射线
漫散射
准周期
多层膜
强度调制
X-ray diffuse scattering
quasiperidic multilayer
intensity modulations.
