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 116
creen is against the back of the chest and the tube(not shown in the cut) was placed in front of the patient, 60 centimetres(2 feet) distant from the screen, and about as high as the shoulder when METHODS OF EXAMINATION 85 the lower of the two shadows was cast, and about on a level with… … and therefore the shadows are seen farther apart, and they are largerand less sharply defined. Second Method. — The screen is placed on the back of the patient andthe tube in front of his chest, and the definition of the shadow on the 86 THE ROENTGEN RAYS IN MEDICINE AND SURGERY screen is noted;…
Radiography · X-rays
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