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phototube |
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phototube [′fōd·ō‚tüb] (electronics) An electron tube containing a photocathode from which electrons are emitted when it is exposed to light or other electromagnetic radiation. Also known as electric eye; light-sensitive tube; photoelectric tube. 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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Spectrometer Features: The system utilizes a charged couple device (CCD) detector instead of individual phototubes and slits to capture light emitted when the metal sample is sparked. The array of phototubes determines the shape of this pattern according to which of the phototubes are triggered and what intensity they see. |
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