Davidson, James Mackenzie, Sir, 1856-1919 · New York, P.B. Hoeber · leaf 22
Pinhole Photograph, taken Obliquely, of the X-RayProducing Surface on the Target of a Badly FocussedTube. … Pinhole Photograph of a Badly Focussed Tube.Fig. 3. [To face p. 2. THE X-RAY TUBE 3 is SO placed as to meet the cathode rays somewherenear their focus. It seldom happens, however, thata tube is constructed in which the target—i.e., theanode or anticathode—is arranged to meet the cathodestream…
X-rays · Eye · Foreign bodies (Surgery)
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