Kaye, G. W. C. (George William Clarkson), 1880-1941 · London, New York [etc.] Longman's Green, and Co. · leaf 60
owing tothe small area of emission, the resulting photographs showedwonderful sharpness and detail. It is remarkable how slight the subsequent changes havebeen ; many thousands of X-ray tubes have been made,but with one notable exception (p. 43) the design agreesessentially with that of fifteen… … Anode &nd AnticaJhode Fig. 16.—Jacksons first focus tube, employing focussed cathode rays. that even now X-ray tubes are prone to be fickle, and it isscarcely possible to guarantee their behaviour. A bulb willbe perfectly satisfactory one day, and yet refuse to workreliably the next; ^ and of…
X-rays
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