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 109
us been treated may show atthe start (when taken in use) the characteristics of a wellexhausted tube, but as soon as the discharge heats theinterior, the occluded air is set free and the vacuum falls,as indicated by the anode light. The larger the tube and the more metal it contains thelonger must… … Fig. 43. Tubes for the Generation of X-Rays 93 determined when the tube should be sealed off from thepump. We shall show in the course of this chapter how thevacuum thus obtained influences the properties of the raysemitted, how the initial vacuum changes under workingconditions, and how it may be…
Radiography · X-rays
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