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 71
ption, see page 35, Figs. 26 and 27. frequency currents on the same principle ; the diffused X-light arisingfrom the spreading cathode stream given off by the target, when actingas a cathode, cannot injure the definition seriously, if the tube is alwaysused, as it should be, in an opaque box as… … Fig. 33. A. W. L. X-light tube for high frequency coils (cooled target type). (Rollins.)A form of tube for use with high frequency coils. Two cathode streams, represented by dottedlines, strike the target, producing two sources from which X-rays arise; the rays from one source,which are represented…
Radiography · X-rays
Internet Archive · Boston Public Library · Public Domain Mark 1.0. Free to use for anything.
![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten07unit-847-548.webp)
