anticathoden.
Electr.
The metal plate opposite the cathode in an X-ray tube, upon which the cathode rays impinge and produce X-rays.
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the world > matter > physics > atomic nucleus > radioactivity > X-rays > [noun] > electron tube > plate in
anticathode1907
1907 A. F. Hertz in Practitioner Apr. 524 A pencil, which points directly towards the anticathode, is fastened behind the fluorescent screen.
1913 Physical Rev. 2 416 The anticathode..consists of a single piece of wrought tungsten, having at the end facing the cathode a diameter of 1·9 cm.
1923 R. Glazebrook Dict. Appl. Physics IV. 595/2 The electrons (cathode rays)..are directed on a heavy metal anticathode or target.
1951 J. R. Partington Gen. & Inorg. Chem. (ed. 2) viii. 191 When cathode rays strike a material target, which in the X-ray tube consists of a metal..plate called an anti-cathode, this emits a radiation which passes outside the tube.
This entry has not yet been fully updated (first published 1933; most recently modified version published online November 2010).
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