Opportunities to Improve Airport Passenger Screening with Mass Spectrometry (2004) / Chapter Skim
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Appendix A: Estimation of the Informing Power of an Ion Mobility Spectrometer
Appendix A: Estimation of the Informing Power of an Ion Mobility Spectrometer
Pages 33-38
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The informing power, Pint, of a measuring device is the number of bits required to encode the information potentially available from the device. Supposing, for example, that the device can report one of S possible values, the informing power of the device is log2~5~.
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Asbury and Hill report that for a typical IMS crevice, the number of theoretical plates rarely exceeds N = 5,000, which corresponds to R = 30. The number of intensity values that can be reported, S
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in aviation security reports a range of approximately 0 to 15 ms. The literature indicates considerable variation in the drift times observed, clepencling (as one would expect)
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