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E-beam - translation to russian
![A diagram showing a [[Crookes tube]] connected to a high voltage supply. The Maltese cross has no external electrical connection.](https://commons.wikimedia.org/wiki/Special:FilePath/Crookes tube2 diagram.svg?width=200 "A diagram showing a [[Crookes tube]] connected to a high voltage supply. The Maltese cross has no external electrical connection.")
![[[Glow discharge]] in a low-pressure tube caused by electric current.](https://commons.wikimedia.org/wiki/Special:FilePath/Glow discharge regions.jpg?width=200 "[[Glow discharge]] in a low-pressure tube caused by electric current.")
.jpg?width=200 "Crookes tube. The cathode (negative terminal) is on the right. The anode (positive terminal) is in the base of the tube at bottom.")
![Cathode rays travel from the cathode at the rear of the tube, striking the glass front, making it glow green by [[fluorescence]]. A metal cross in the tube casts a shadow, demonstrating that the rays travel in straight lines.](https://commons.wikimedia.org/wiki/Special:FilePath/Katódsugarak mágneses mezőben(2).jpg?width=200 "Cathode rays travel from the cathode at the rear of the tube, striking the glass front, making it glow green by [[fluorescence]]. A metal cross in the tube casts a shadow, demonstrating that the rays travel in straight lines.")
.jpg?width=200 "A magnet creates a horizontal magnetic field through the neck of the tube, bending the rays up, so the shadow of the cross is higher.")
.jpg?width=200 "When the magnet is reversed, it bends the rays down, so the shadow is lower. The pink glow is caused by cathode rays striking residual gas atoms in the tube.")
['i:bi:m]
существительное
общая лексика
электронный пучок
['i:bi:m]
существительное
общая лексика
электронный пучок
общая лексика
пучок электронов
медицина
электронный луч
Definition
1.
Wikipedia
Cathode rays or electron beam (e-beam) are streams of electrons observed in discharge tubes. If an evacuated glass tube is equipped with two electrodes and a voltage is applied, glass behind the positive electrode is observed to glow, due to electrons emitted from the cathode (the electrode connected to the negative terminal of the voltage supply). They were first observed in 1859 by German physicist Julius Plücker and Johann Wilhelm Hittorf, and were named in 1876 by Eugen Goldstein Kathodenstrahlen, or cathode rays. In 1897, British physicist J. J. Thomson showed that cathode rays were composed of a previously unknown negatively charged particle, which was later named the electron. Cathode-ray tubes (CRTs) use a focused beam of electrons deflected by electric or magnetic fields to render an image on a screen.
