Bragg, William Henry, Sir, 1862-1942, Bragg, William Lawrence, Sir, 1890-1971 · London : G. Bell · leaf 46
e of reflection is roade apparent, and thecrystal appears to be almost perfect. THE X-RAY SPECTROMETER 31 The principal objects in view, when choosing amethod of observation, are intensity and sharpness ofdefinition or resolving power. The two are notalways compatible with each other. In… … Fig. 8. slit at A in the wall of the box. Let the crystal facebe in the position PJ^, P being on the axis of thespectrometer. Let the ray OP be reflected to D, theslit of the ionisation chamber. Let PR be a secondposition of the crystal face, the crystal having beenturned through the angle RPR. Let…
Crystallography · X-rays
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