Röntgen rays and electro-therapeutics - with chapters on radium and phototherapy (1910) (14571661627)

Identifier: rntgenrayselectr00kass (find matches)

Title: Röntgen rays and electro-therapeutics : with chapters on radium and phototherapy

Year: 1910 (1910s)

Authors: Kassabian, Mihran Krikor, 1870-1910

Subjects: Electrotherapeutics X-rays Phototherapy Radiology Radiotherapy

Publisher: Philadelphia & London : J.B. Lippincott Company

Contributing Library: Francis A. Countway Library of Medicine

Digitizing Sponsor: Open Knowledge Commons and Harvard Medical School

Text Appearing Before Image:

Fig. 61.—Diagram of tlie Oudin resonator. The Tesia coil is omitted. Tiie current from theinduction coil is connected with the inner tin-foil of the Leyden jars. The outer coat of one Leydenjar is in connection with the resonator, and is also grounded. The outer coat of the other Leyden jaris connected to the handle, H, which, by a slidinsr movement either in the vertical or the horizontaldirection, decreases or increases the amount of winding of the resonator. M is the spark-gap for regu-lating the amount of current. Fig. 62.—The Oudin resonator and Tesla coil, with electrode. (Biddle.)

Text Appearing After Image:

Fig. 63.—Glass electrodes. This set of electrodes has been especially designed for convenience inchanging from one electrode to another. The hard-rubber handle is made very long and providedwith a universal socket in which any of the electrodes may be fastened or loosened by merely movingthe ring upon the sleeve which holds tlie stem of the electrodes. HIGH-FEE(ciUENCY CUEEENTS. 123 bright iucandescence aud the glass is rapidly heated. With a 100-volt10 e. p. lamp, one may yrithont great discomfort stand as much currentas v\ill bring the lamp to a considerable brilliancy ; but it can be held inthe hand only for a few minutes, as the glass is heated in an incrediblyshort time. In Teslas apparatus (Fig. 60) the inner tin-foils of the Leyden jarsare positively and negatively charged from the secondary terminals of theEuhmkorff coil. The outer foils are in connection through the primarybinding of Tesla s transformer, as is shown in the illustration, and throughthe spark-gap. These high-

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1910

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