【摘要】 从理论和实验两个角度研究了填样深度对多晶粉末X射线衍射仪中实验结果——峰位、半高宽(FWHM)、衍射强度的影响。结果表明,在对称反射几何情况下,金属及其合金样品填样深度效应可以忽略,填样深度在0.2～0.5mm范围内能满足无穷厚度要求;对于绝大多数有机样品填样深度应不小于1.5mm。更多还原

【Abstract】 The influences of fill-sample depth on experimental results,such as peak position,half high width(FWHM) and diffraction intensity were investigated theoretically and experimentally with powder X-ray diffractometer.Results showed that the effect of fill-sample depth on metal and alloy could be neglected under symmetry reflection geometry.The fill-sample depth at the range of 0.2-0.5 mm could meet the requirement of infinitude thickness.For most of organic samples,the fill-sample depth should be greater than 1.5 mm.更多还原