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 154
or largerscreens than 10 by 12 inches, become rather bulky anddifficult to handle, and of course the image is only visibleto one person at a time. When using a dark room for radioscopic work, thescreen is frequently held in the hand of the operator, andmoved to whatever part of the body we may wish… … Fig. 6Q. sharp, vigorous shadows, not too greatly^distorted. Thetube should be placed with the anti-cathode pointingtowards the observer, and should be in a suitable box, orbe otherwise covered so as to exclude its fluorescent light.
Radiography · X-rays
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