X rays, an introduction to the study of Röntgen rays (1914)
Kaye, G. W. C. (George William Clarkson), 1880-1941 · London : Longmans, Green · leaf 66
is* isjf ■ … FiG. 24.—Photomicrograph of fused focus-spot in a tantalum anticathode. may be melted locally without damage to the rest of the plate.Fig. 24 is a photomicrograph (kindly lent me by Mr. J. H.Gardiner) of the focus spot of a tantalum anticathode sub-jected to a momentary heavy discharge. The metal…
X-rays
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