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
a radius of curvature of about 3.5 centimetres, andshould be placed at twice this distance from the target. The diameterof the cathode should vary with the size of the discharges used to excitethe tube ; if these are large, the cathode should be large. Anode. — The anode, in the double focus tube,… … 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…
Radiography · X-rays
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