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electron gun |
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electron gunSeries of electrodes, including a cathode for producing an electron beam. It plays an essential role in many electronic devices, including cathode-ray tubes (television tubes) and electron microscopes. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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Such a CRT must be thick enough so that the electron gun isn't too close to the screen; otherwise, the image becomes distorted. These advances include: (1) field-emission gun electron beam instruments such as scanning electron microscopes (FEG-SEMs) that have high brightness electron guns with excellent performance at low beam energies, [E. A similar process is at work in TV screens: An electron gun fires a beam into various metals embedded in the screen, which combine to produce a color picture. |
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electron gun
