X rays, an introduction to the study of Röntgen rays (1914)
Kaye, G. W. C. (George William Clarkson), 1880-1941 · London : Longmans, Green · leaf 196
graphic plate from the crystal,the spots, while showing but little alteration in size, in-creased or diminished their displacement from the centre.Further, if the crystal was rotated so as to make a differentangle with the primary beam, the pattern on the platewas affected : by careful adjustment,… … Fig. 82.—Pattern of Laue spots obtained by Friedrich and Knipping whenX rays are diffracted by a zinc-blende crystal. The incident rays are parallelto a cubic axis of the crystal.
X-rays
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