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anode target

См. также в других словарях:

  • target — [tär′git] n. [ME < MFr targette, dim. of targe, a shield < Frank * targa, akin to TARGE] 1. Historical a small shield, esp. a round one 2. a) a round, flat board, straw coil, etc., often one marked with concentric circles, set up to be… …   English World dictionary

  • target — 1. An object fixed as goal or point of examination. 2. In the ophthalmometer, the mire. 3. SYN: t. organ. 4. Anode of an x ray tube. SEE ALSO: x ray. [It. targhetta, a small s …   Medical dictionary

  • rotating anode — in radiology, an anode in the form of a disk with the target material annealed to its rim; the anode is continuously rotated so that the electron stream strikes only a small part of the target at one time, thus allowing heat dissipation …   Medical dictionary

  • 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

  • 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

  • X-ray machine — An X ray machine is a device used by radiographers to acquire an x ray image. They are used in various fields, notably medicine and security.HistoryShay M. Anderson and Ryan W. Preuninger formulated mathematical equations for X rays. Physicist… …   Wikipedia

  • History of radar — The history of radar starts with experiments by Heinrich Hertz in the late 19th century that showed that radio waves were reflected by metallic objects. This possibility was suggested in James Clerk Maxwell s seminal work on electromagnetism.… …   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

  • List of vacuum tubes — This is a list of vacuum tubes or thermionic valves. Before the advent of semiconductor devices, hundreds of tube types were used in consumer and industrial electronics; today only a few types are still used in specialized applications. Contents… …   Wikipedia

  • spectroscopy — spectroscopist /spek tros keuh pist/, n. /spek tros keuh pee, spek treuh skoh pee/, n. the science that deals with the use of the spectroscope and with spectrum analysis. [1865 70; SPECTRO + SCOPY] * * * Branch of analysis devoted to identifying… …   Universalium

  • 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

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