Practical radiography : a handbook for physicians, surgeons, and other users of X-rays (1901)
Isenthal, A. W, Ward, H. Snowden (Henry Snowden), 1865-1911 · London : Published for The Photogram, Ltd. by Dawbarn and Ward, Ltd. · leaf 99
tions which it yields, thecharacter of the discharge between the ends of the second-ary is unlike any other spark discharge; instead of a 82 Practical Radiography single spark or even a stream of sparks we obtain by itsmeans a veritable torrent of sparks, which—at shorter gap-lengths—develops into… … Fig. 39. that it ensures perfect steadiness of the image on thefluorescent screen, and reduces the exposure necessary fora radiogram to a small fraction of the time usually requiredfor this purpose, when an ordinary platinum or mercurybreak is employed. Interrupters for Alternating Currents. On…
Radiography · X-rays
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