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 65
Fig. 24. A. W. L. rotary target tube with movable target. (Rollins.)This cut shows a curved target supported by a strong stem which can be slid in or out by theaction of a sliding weight attached to it (the dark mass on the stem represents the weight), and thusthe distance between the target and… … Fig. 25. A. W. L. rotary target tube with movable target and internal diaphragm. (Rollins.)This cut shows a similar adjustable target with a diaphragm, supported on the same stein,above it. The cone of rays, and the widening of this cone as its distance from the target increases, isrepresented by…
Radiography · X-rays
Internet Archive · Boston Public Library · Public Domain Mark 1.0. Free to use for anything.
