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 85
TGEN RAYS IN MEDICINE AND SURGERY the circular diaphragm and the box, and can be turned so that itsopening coincides with their largest one ; while the screen is in thisposition the proper place for the target is found by means of the lightissuing from the tube through this hole. The screen is then… … Fig. 46. Tube holder open. This tube holder (Fig. 46) consists of a box, the upper and lower parts of which are of equal size andare hinged together at the back. It has a hole cut at either end which is large enough for the stems ofthe tube, which protrude somewhat, to go through. In the top,…
Radiography · X-rays
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