Davidson, James Mackenzie, Sir, 1856-1919 · New York, P.B. Hoeber · leaf 38
p. 8. SECONDARY RAYS AND X-RAY PROTECTION 9 showing that each quadrant of the bare greenfluorescing glass of the bulb has produced its ownpicture. It follows from all this that, in order to havethe maximum value, any diaphragms which are usedshould be placed in close contact with the glass ofthe… … Fig. 15. on a comparison of Figs. 13 and 14, the first havingbeen taken with a tubular stop, and the secondwithout. Nature of the Secondary Rays.—Without enteringupon the speculations which open out as a result ofthese proofs of the existence of secondary rays fromthe glass, it is interesting to…
X-rays · Eye · Foreign bodies (Surgery)
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