File:Röntgenröhre.jpg

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Deutsch: Röntgenröhre, eigenes Bild
English: An early Crookes type X-ray tube. The electrode to the right is the cathode, which focused a narrow beam of electrons on the platinum or tungsten target at the center of the angled copper anode to the left, creating x-rays, which radiated downwards. The sausage-shaped bulb at top is a 'softener'. Crookes tubes required a certain amount of residual gas in them to function properly. As time passed, the gas was absorbed by the surfaces inside the tube, causing them to quit working. Applying a current through the 'softener' heated a mantle inside, releasing gas to restore the tube to operation. These types of x-ray tubes were used from the 1890s to about 1920.
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Author Stahlkocher

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GNU head Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License.
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Date/TimeThumbnailDimensionsUserComment
current14:42, 29 January 2005Thumbnail for version as of 14:42, 29 January 20051,873 × 1,278 (232 KB)Stahlkocher (talk | contribs)Röntgenröhre, eigenes Bild, {{GFDL}}, Category:objects

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