. Röntgen ray diagnosis and therapy . Fig. 27.—Skiagraphing Hand by the aid of Authors Diaphragm. 38 THE KOXTGEN EAYS sion, but also permits immobilization of the area to be irradiatedby compression, a decided advantage of the latter also consistingin the possibility of bringing the area nearer to the photographicplate. The compression also has the great advantage that all ex-posures are taken at the same distance of the tube from the surfaceof the body. Thus an exact standardization is guaranteed, and the. Skiagraphing Head by the aid of the Diaphragm. perspective always remains the same. The
. Röntgen ray diagnosis and therapy . Fig. 27.—Skiagraphing Hand by the aid of Authors Diaphragm. 38 THE KOXTGEN EAYS sion, but also permits immobilization of the area to be irradiatedby compression, a decided advantage of the latter also consistingin the possibility of bringing the area nearer to the photographicplate. The compression also has the great advantage that all ex-posures are taken at the same distance of the tube from the surfaceof the body. Thus an exact standardization is guaranteed, and the. Skiagraphing Head by the aid of the Diaphragm. perspective always remains the same. The elaborate metallic com-pression-diaphragm illustrated by Figs. 23 and 2-i is movable inany direction. Its diameter is proportional to the size of the skia-graph to be made. Tubes provided with various diameters aretherefore recommendable. In general, however, a diameter of 4inches is desirable. Even in fat persons structural details can beobtained with this apparatus. RONTGEN TECHNIQUE 39 No perfect Rontgen outfit can be without a compression dia-phragm nowadays, the only drawback being that the splendid appa-ratus of Albers-Schonberg is extraordinarily high priced. Theauthor has therefore devised a simple movable tube (Figs. .■>. 26,27, and 28), which is portable and can be fastened to any table,and practically answers the same purpose. It prevents diffusionand permits of immobilization and compression. Its cheap priceplaces it within the reach of every (The upper marginof the tub
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Keywords: ., bookcentury1900, bookdecade1900, bookpublishernewyo, bookyear1904
