X rays, an introduction to the study of Röntgen rays (1914)
Kaye, G. W. C. (George William Clarkson), 1880-1941 · London : Longmans, Green · leaf 92
fig. 44. -The discharge is hardened by withdraw-ing the cathode from H to ..i. … Fiu. 45.—A Cossor bulb of lithium-glass with recessed cathode. (See Fig. 14.) (d) By diminishing the clearance between the cathode andthe surrounding tube. It was pointed out on p. 31 thatif the space round the cathode is restricted, the dischargepasses with difficulty, so that if the cathode is…
X-rays
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