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

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Chem 155 Unit 5 Page 102 <strong>of</strong> 316Radiation Transducers (Light Detectors):Chapter 7, Skoog Holler & Nieman7E PhotomultipliersPhotodiodesCharge-Coupled Device ArraysDesired Properties <strong>of</strong> a Detector:High Quantum Efficiency:A large fraction <strong>of</strong> photons that strike itresult in a response – few are lost.High Gain:For each photon that strikes thedetector, a large signal isgeneratedLow Noise:Constant light flux gives a constantsignal - σ for measurement is low.Low Dark Count:Low or no signal is present in thedark.Page 102 <strong>of</strong> 316

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