Technikatörténeti szemle 13. (1982)

TANULMÁNYOK - Jeszenszky Sándor:

Grossmann: Apparate zur Röntgen-Tiefentherapie (Wagner, Weimar, 1921.) Rosenthal: Praktische Röntgenphysik u. Technik (Barth, Leipzig, 1925.) Glasser: Wilhelm Conrad Röntgen ... (Springer, Berlin, 1931.) Kelen: A röntgenologia alapvonalai (Stephaneum, Budapest, 1934.) Császár: A röntgensugárzás (KMTT, Budapest, 1934.) Grigg: The trail of the invisible light. (Ch. C. Thomas, Springfield, Illinois, 1964.) Bugyi: Hungárián medical radiology past and present (Medicor, Budapest) Simonyi: A fizika kultúrtörténete. (Gondolat, Budapest, 1978.) Kocsis, Bugyi, Végh: Magyar úttörők a röntgen-cső továbbfejlesztésében és alkalmazásában (Technikatörténeti Szemle, 1978.) SUMMARY SANDOR JESZENSZKY: THE RELATIONSHIP BETWEEN THE DISCOVERY OF THE ROENTGEN-RAYS AND THE DEVELOPMENT OF THE ELECTROTECHNICAL INDUSTRY (1895—1918) The paper furnishes an overwiew of the history of the very early X-ray experiments, and the technical conditions for producing Roentgen rays. The electrotechnical industry was influenced by the manufacture of Roentgen equipments. It necessitated to develop the high-voltage engineering and use new materials. Owing to the high power concentration in the Roentgen tubes, heavy metals with high melting points had to be used. This requirement coincided with the purposes for development of metalfilament lamps. At first, tantalum then tungsten was used to produce the anodes and the filaments. The metal filaments heatable above 2000 °C made possible to construct Roentgen tubes with hot cathodes. The publication briefly demonstrates the first steps of the Middle-European, and especially the Hungarian Roentgen industry too.