The Roentgen rays in medicine and surgery as an aid in diagnosis and as a therapeutic agent : designed for the use of practitioners and students (1901)
Williams, Francis H. (Francis Henry), 1852-1936 · New York, Macmillan · leaf 622
for producing a small and steady radiant area, it is essentialfor obtaining the best definition to so enclose the tube that no X-raysikn escape except the smallest cone that will cover the area to be photo-graphed. Figure 42, Chapter II, page 52, shows a suitable tube-holderwith cover removed, and… … Fig. 356. Apparatus in position for pliotographing upper front teeth. suggested by Tesla, should therefore be used (see Chapter II, page58). A good form of screen for dental photography is shown inFig. 356. It consists of a framework of wood sliding on the tube- 6o6 THE ROENTGEN RAYS IN MEDICINE…
Radiography · X-rays
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