Difference: 20151009_MSciSpectrocopyAnalysis (2 vs. 3)

Revision 313 Oct 2015 - JosephBayley

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META TOPICPARENT name="StewartBoogertSpectroscopy2015"
Spectrum
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  l is equal to the expextation value and the variance, therefore for the distribution to be poisson the mean should be equal to the square of the standard deviation.
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Spectrum with removed background

The background could then be reomved from the inital spectra of the lamp leaving only the significant peaks. This was done by removing the mean+stdev.

  • Cadmium_removedBackground.png:
    Cadmium_removedBackground.png
 -- JosephBayley - 13 Oct 2015

META FILEATTACHMENT attachment="Cadmium_spectrum.png" attr="h" comment="" date="1444724881" name="Cadmium_spectrum.png" path="Cadmium_spectrum.png" size="74235" user="zxap044" version="1"
META FILEATTACHMENT attachment="Background_cadmium_plot.png" attr="h" comment="Background with bright pixel" date="1444735056" name="Background_cadmium_plot.png" path="Background_cadmium_plot.png" size="63206" user="zxap044" version="1"
META FILEATTACHMENT attachment="Background_cadmium_histogram.png" attr="h" comment="Background histogram" date="1444735377" name="Background_cadmium_histogram.png" path="Background_cadmium_histogram.png" size="41881" user="zxap044" version="2"
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META FILEATTACHMENT attachment="Cadmium_removedBackground.png" attr="h" comment="" date="1444749862" name="Cadmium_removedBackground.png" path="Cadmium_removedBackground.png" size="89641" user="zxap044" version="1"
 
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