D)Equipment q=00 10.70A 45 强度 光石墨 q=900 X光栏 2)Experimental results:9 OThe scattered X-rays have intensity 4 =135 peaks at two wavelengths: one of the them is the same as the incident wavelength, No, the other, 2, being larger by an amount△^ 0.70075x
1) Equipment 0 2) Experimental results : X光 光 栏 石墨 0.70Å X射线分析仪 2 3 4 1 =00 =450 =900 =1350 0.70 0.75 (Å) 强 度 The scattered X-rays have intensity peaks at two wavelengths: one of the them is the same as the incident wavelength, 0 , the other, , being larger by an amount △
q=0 钼辐射器,Ka线 @This So-called Compton 锂,128° M shift△ varies with the 硼,128° M angle at which the scattered X-rays are 碳,128° observed 水,128° ③ Compton shift△λfor 钠.128 M collisions with tightly 镁.约120° M bound electrons is 铝,约125 immeasurably small M T 图9-6康普顿和吴有训1924年发表的曲线 0.70075(A)
2 3 4 1 =00 =450 =900 =1350 0.70 0.75 (Å) 强 度 This so-called Compton shift △ varies with the angle at which the scattered X-rays are observed. Compton shift △ for collisions with tightly bound electrons is immeasurably small