electromagnetic cathode-ray tube

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• Cathode ray tube — Cutaway rendering of a color CRT: 1. Three Electron guns (for red, green, and blue phosphor dots) 2. Electron beams 3. Focusing coils 4. Deflection coils 5. Anode connection 6. Mask for separating beams for red,… …   Wikipedia

• X-ray tube — An X ray tube is a vacuum tube that produces X rays. They are used in X ray machines. X rays are part of the electromagnetic spectrum, an ionizing radiation with wavelengths shorter than ultraviolet light. X ray tubes evolved from experimental… …   Wikipedia

• cath|ode-ray tube — «KATH ohd RAY», a vacuum tube in which high speed electrons are produced and passed through electromagnetic fields in the form of a beam. Cathode ray tubes are used in reproducing images in television receivers, radar sets, and computer terminals …   Useful english dictionary

• electromagnetic radiation — Physics. radiation consisting of electromagnetic waves, including radio waves, infrared, visible light, ultraviolet, x rays, and gamma rays. [1950 55] * * * Energy propagated through free space or through a material medium in the form of… …   Universalium

• Tube — A long hollow cylinder. There are many tube like structures in the human body, such as the auditory tube (Eustachian tube) in the ear. * * * 1. A hollow cylindrical structure or canal. 2. A hollow cylinder or pipe. SYN: tuba [TA]. [L. tubus]… …   Medical dictionary

• X-ray — [ 22 December 1895 and presented to Professor Ludwig Zehnder of the Physik Institut, University of Freiburg, on 1 January 1896. The dark oval on the third finger is a shadow produced by her ring. [cite book last = Kevles first =Bettyann Holtzmann …   Wikipedia

• Crookes tube — A Crookes tube. The electrons travel in straight lines from the cathode on the left, shown by the shadow cast by the cross on the fluorescence on the righthand wall. The anode is at the bottom. A Crookes tube is an early experimental electrical… …   Wikipedia

• Video camera tube — In older video cameras, before the mid to late 1980s, a video camera tube or pickup tube was used instead of a charge coupled device (CCD) for converting an optical image into an electrical signal. Several types were in use from the 1930s to the… …   Wikipedia

• Vacuum tube — This article is about the electronic device. For experiments in an evacuated pipe, see free fall. For the transport system, see pneumatic tube. Modern vacuum tubes, mostly miniature style In electronics, a vacuum tube, electron tube (in North… …   Wikipedia

• Teltron Tube — A teltron tube (named for Teltron Inc. which originally manufactured it before being bought by [http://www.3bscientific.co.uk/ 3B Scientific Ltd.] ) is a type of cathode ray tube used to demonstrate the properties of electrons. It usually… …   Wikipedia

• ray — 1. A beam of light, heat, or other form of radiation. The rays from radium and other radioactive substances are produced by a spontaneous disintegration of the atom; they are electrically charged particles or electromagnetic waves of extremely… …   Medical dictionary