The spectrum of scattered x-rays
The spectrum of scattered x-rays
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DOI：
10.1103/physrev.22.409
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发表时间：
1923-11-01
期刊：
影响因子：
--
通讯作者：
Compton, AH
中科院分区：
文献类型：
--
作者：
Compton, AH
本文比较了钼K α射线在45、90和135 ℃下被石墨散射的能谱与原束能谱。当散射时，主光谱线被分解成两条线，一条波长保持不变的“未修改”线，以及一条波长大于主光谱线的波长的“修改”线。在大约0.001埃的可能误差内，波长差（λ− λ 0）根据量子关系（λ− λ 0）= λ（1− cos θ）随着初级射线和散射射线之间的角度θ而增加，其中λ= h mc= 0.0242埃。吸收测量也证实了这种波长变化。修改后的射线似乎不像未修改的射线那样均匀;它在小角度下的强度较低，在大角度下的强度高于未修改的射线。
The spectrum of molybdenum K α rays scattered by graphite at 45, 90 and 135 has been compared with the spectrum of the primary beam. A primary spectrum line when scattered is broken up into two lines, an" unmodified" line whose wave-length remains unchanged, and a" modified" line whose wave-length is greater than that of the primary spectrum line. Within a probable error of about 0.001 A, the difference in the wave-lengths (λ− λ 0) increases with the angle θ between the primary and the scattered rays according to the quantum relation (λ− λ 0)= λ (1− cos θ), where λ= h mc= 0.0242 A. This wave-length change is confirmed also by absorption measurements. The modified ray does not seem to be as homogeneous as the unmodified ray; it is less intense at small angles and more intense at large angles than is the unmodified ray.