Practical radiography : a handbook for physicians, surgeons, and other users of X-rays (1901)
Isenthal, A. W, Ward, H. Snowden (Henry Snowden), 1865-1911 · London : Published for The Photogram, Ltd. by Dawbarn and Ward, Ltd. · leaf 119
F. … G. Various types of tubes. Tubes for the Generation of X-Rays 101 the penetration. In the other type the cathode may bebrought into various positions as regards distance from theanti-cathode, and the penetration of the tube increased bylessening this distance (Types F and G on page 100). Nowadays…
Radiography · X-rays
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