The Roentgen rays in medicine and surgery as an aid in diagnosis and as a therapeutic agent : designed for the use of practitioners and students (1901)
Williams, Francis H. (Francis Henry), 1852-1936 · New York, Macmillan · leaf 72
Fig. 34. A. W. L. tube with cooled target (for alternating currents). (Rollins.) X-RAY EQUIPMENT 41 be determined by interposing a tube of good construction between theexcited tube and the fluorescent screen, and observing how slight is theshadow cast upon the latter. … Fig. 35. A. W. L. tube with rotary target (for alternating currents). (Rollins.) In these tubes, one cathode stream striking the back of the target is sent out of the field. As onlyone radiant area on the target sends light to the patient, the image on the plate or screen is as sharpas when a…
Radiography · X-rays
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