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 96
or Plate. — The tube should be so placedthat the rays will fall as perpendicularly upon the screen or photographicplate as the given conditions will permit. The following diagrams, likethe cuts of the pins (see Figs. 51 and 52), direct attention to the effect METHODS OF EXAMINATION 65 on the… … FlG. 51. Cut of photograph showing relative position of the cork containing the pins, the photo-graphic plate, and the vacuum tube vvhen Fig. 52 was taken. sible at right angles to the direction of the rays (see Fig. 53). The target of the tube should be directly opposite the part to be examined.…
Radiography · X-rays
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