Meadowcroft, Wm. H. (William Henry), 1853- · New York : The American Technical Book Co · leaf 169
racticable to have thetube a long distance away from the body, as anexposure of several hours might, in such a case,be necessary. In taking radiographs through the humantrunk or through the thicker parts of the limbs,it is usual to shorten the time of exposure byplacing a fluorescence screen…
X-rays
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