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hollow cathode lamp |
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hollow cathode lamp Etymology: ME, holwe + Gk, kata, down, hodos, way, lampas a lamp consisting of a metal cathode and an inert gas. When an electric current is passed through the cathode, electrons in the metal are excited so as to emit a line spectrum of specific wavelengths related to the metal of the cathode. 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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| They used the NIST 10 m vacuum spectrometer to record the spectra, which were calibrated by spectral lines from a platinum hollow cathode lamp. |
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