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2.用小角度散射测求的方法:通常除了Bragg反射外,在入射点中心附近非常小的角度引起散射。称为小角散射。小角度散射是由于物体内存在电子密度不同的区域时所引起的。该区域越小,其宽化越大,现在假设这个区域的平均大小为D,则可得宽化ε(=2θ)=λ/D。由此可明白,D越大,散射就越集中在入射点附近,使观察成为不可能。若ε≈10~(-3)孤度的范围能够观察的话,那末小角装置能够测
2. The method of measurement using small-angle scattering: In general, except for Bragg reflection, a very small angle near the center of the incident point causes scattering. Known as small-angle scattering. Small-angle scattering is caused by the presence of regions of different electron densities in the object. The smaller the region is, the larger its width is. Now suppose that the average size of this region is D, the width of ε (= 2θ) = λ / D can be obtained. From this we can see that the larger the D, the more concentrated the scattering is near the point of incidence, making observation impossible. If ε ≈ 10 ~ (-3) the range of the solitary can be observed, then the small angle device can measure