Crookes tube

n (General Physics) a type of cathode-ray tube in which the electrons are produced by a glow discharge in a low-pressure gas

Crookes′ tube′

n. a form of cathode-ray tube. [1880–85; after Sir W. Crookes]

Thesaurus

Noun

Crookes tube - the original gas-discharge cathode-ray tubecathode-ray tube, CRT - a vacuum tube in which a hot cathode emits a beam of electrons that pass through a high voltage anode and are focused or deflected before hitting a phosphorescent screen

Crookes tube

Crookes tube,

device invented by Sir William Crookes (c.1875) consisting essentially of a sealed glass tube from which nearly all the air has been removed and through the walls of which are passed two electrodes. When a high voltage is applied between the two electrodes, electrons are emitted from the cathodecathode,
electrode through which current leaves an electric device. In electrolysis, it is the negative electrode in the electrolytic cell.
..... Click the link for more information. and are accelerated toward the anode. Many of these electrons, or cathode rays (as they are usually called), miss the anode and strike instead the glass wall of the tube, causing it to exhibit fluorescence. The behavior of the rays indicates that they travel in straight lines and exert a pressure on any object placed in their path. The Crookes tube was used by Crookes in a number of experiments and was later used in experiments leading to the discovery of X rays by W. C. Roentgen (1895) and of the electron by J. J. Thomson (1897).

Crookes tube

[′kru̇ks ‚tüb] (electronics) An early form of low-pressure discharge tube whose cathode was a flat aluminum disk at one end of the tube, and whose anode was a wire at one side of the tube, outside the electron stream; used to study cathode rays.

Crookes tube

Crookes tube

Crookes tube

Crookes′ tube′

Crookes tube

Crookes tube,

Crookes tube

Crookes tube

Crookes tube

Crookes tube

Words related to Crookes tube

noun the original gas-discharge cathode-ray tube

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