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X-ray tube
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An X-ray tube is a vacuum tube that converts electrical input power into X-rays. The availability of this controllable source of X-rays created the field of radiography, the imaging of partly opaque o
In this dental X-ray tube the heated cathode is on the left. Centre is the anode which is made from tungsten and embedded in the copper sleeve.
In this dental X-ray tube the heated cathode is on the left. Centre is the anode which is made from tungsten and embedded in the copper sleeve.
Crookes X-ray tube from early 1900s. The cathode is on the right, the anode is in the center with attached heat sink at left. The electrode at the 10
Crookes X-ray tube from early 1900s. The cathode is on the right, the anode is in the center with attached heat sink at left. The electrode at the 10 o'clock position is the anticathode. The device at top is a 'softener' used to regulate the gas pressure.
typical rotating anode X-ray tube
typical rotating anode X-ray tube
Two high voltage rectifier tubes capable of producing X-rays
Two high voltage rectifier tubes capable of producing X-rays
Crookes tube
Videos
A Crookes tube is an early experimental discharge tube with partial vacuum invented by English physicist William Crookes and others around 1869–1875, in which cathode rays, streams of electrons, were
X-ray tube
…X-ray tubes evolved from experimental Crookes tubes with which X-rays were first discovered on November 8, 1895, by the German physicist Wilhelm Conrad Röntgen. The first-generation cold cathode or Crookes…
Experimental Crookes tube belonging to Wilhelm Röntgen, c. 1890, at Gedächtnisstätte Würzburg (Rontgen Memorial), Würzburg, Germany
Experimental Crookes tube belonging to Wilhelm Röntgen, c. 1890, at Gedächtnisstätte Würzburg (Rontgen Memorial), Würzburg, Germany
A Crookes tube: light and dark. Electrons (cathode rays) travel in straight lines from the cathode (left), as shown by the shadow cast by the metal Ma
A Crookes tube: light and dark. Electrons (cathode rays) travel in straight lines from the cathode (left), as shown by the shadow cast by the metal Maltese cross on the fluorescence of the righthand glass wall of the tube. The anode is the electrode at the bottom
William Crookes and his glowing tubes gained renown, as shown by this 1902 caricature in Vanity Fair. The caption read "ubi Crookes ibi lux", which in
William Crookes and his glowing tubes gained renown, as shown by this 1902 caricature in Vanity Fair. The caption read "ubi Crookes ibi lux", which in Latin means roughly, "Where there is Crookes, there is light"