Meadowcroft, Wm. H. (William Henry), 1853- · New York : The American Technical Book Co · leaf 135
inum cup for the cathode electrode and adisk of platinum set at an angle of about 45 de-grees for the anode electrode. The cathodic raysfocus upon this anode disk and are projected 124 The A B C of the X Rays forward therefrom, as in the case of the doublefocus tube. It is not absolutely necessary… … Fig. 29. focus tube when well made is a most excellent onefor the production of the X rays. It also givessharp definition of opaque objects examined orradiographed, and is capable of use for most ofthe advanced class of work now carried on. Thistype of tube is, however, better adapted for usewith…
X-rays
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