Difference: 20151009_MSciSpectrocopyAnalysis (2 vs. 3)

Revision 313 Oct 2015 - JosephBayley

Line: 1 to 1

META TOPICPARENT	name="StewartBoogertSpectroscopy2015"

Spectrum

Line: 25 to 25

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.

Added:

>
>

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:

-- 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"

Added:

>
>

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"

View topic | History: r4 < r3 < r2 < r1 | More topic actions...

Copyright © 2008-2023 by the contributing authors. All material on this collaboration platform is the property of the contributing authors.
Ideas, requests, problems regarding RHUL Physics Department TWiki? Send feedback