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Full set of Notes with Fill-Ins - San Jose State University

Full set of Notes with Fill-Ins - San Jose State University

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Chem. 155 Unit 4 Page 91 <strong>of</strong> 316Continuum Sources <strong>of</strong> Light:Broadband or White Light SourcesAlso called:1. Simplest Design:Blackbody Sourcesa. Tungstenb. Quartz-Tungsten-Halogenc. Nernst GlowerVisible / Near IR / IRIR / Far IR2. Gas Emission Designs:a. H 2 / D 2UV OnlyH 2 + e - H 2 * H + H + hνKinetic Energy <strong>of</strong> H atoms =ContinuumTherefore hν can be:Continuumb. Ar, Xe, HgUV-Vis-Near IRHeavy (High-Z) atoms Many atomic states+High Pressure (extensive broadening <strong>of</strong> lines)Quasi-ContinuumPage 91 <strong>of</strong> 316

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