
META TOPICPARENT 
name="StewartBoogertSpectroscopy2016" 
Peak Algorithm 

 FWHM can be obtained by .
 Peak locator algorithm used for camera angle at 1.50mm:


< <  Error Bars 
> >  Error Bars and Chi Squared 
 

< < 
 Zoomed in look at the lowest Cd peak at 06.50mm:
 First attempt at error bars, setting y error as sqrt of count:

> > 
 First attempt at error bars, setting y error as the square root of the count:
 Error bars are tiny due to incorrect assumption that data follows a poison distribution.

 

> > 
 Chi squared function used:
 Cd spectrum at 06.50mm with Gaussian fits, error bars and Chi squared values:
 Chi squared values are huge as expected due to poor fit. Once errors and fit equation are correct, Chi squared should reduce.

  JamesAngthopo  03 Nov 2016
META FILEATTACHMENT 
attachment="latex571589bb63149f4a0fe5f7816db4a267.png" attr="h" comment="" date="1478204640" name="latex571589bb63149f4a0fe5f7816db4a267.png" user="zyvb137" version="1" 


META FILEATTACHMENT 
attachment="PeakAt1.50mm.png" attr="" comment="Peak locator algorithm used for camera angle at 1.50mm" date="1478205562" name="PeakAt1.50mm.png" path="PeakAt1.50mm.png" size="97377" user="zyvb137" version="1" 
META FILEATTACHMENT 
attachment="Improved_Cd_0650_Gaussians_lowest.png" attr="" comment="Zoomed in look at the lowest Cd peak at 06.50mm" date="1478254637" name="Improved_Cd_0650_Gaussians_lowest.png" path="Improved_Cd_0650_Gaussians_lowest.png" size="20094" user="zyvb951" version="1" 
META FILEATTACHMENT 
attachment="Improved_Cd_0650_Gaussians_lowest_errorbar.png" attr="" comment="First attempt at error bars, setting y error as sqrt of count" date="1478254666" name="Improved_Cd_0650_Gaussians_lowest_errorbar.png" path="Improved_Cd_0650_Gaussians_lowest_errorbar.png" size="22613" user="zyvb951" version="1" 


> > 
META FILEATTACHMENT 
attachment="Cd_0650_gaussian_errors_chi.png" attr="" comment="Cd spectrum at 06.50mm with Gaussian fits, error bars and Chi squared values" date="1478262095" name="Cd_0650_gaussian_errors_chi.png" path="Cd_0650_gaussian_errors_chi.png" size="50103" user="zyvb951" version="1" 
META FILEATTACHMENT 
attachment="latex7a2dc0416ef5cd50c8b19fac02a6ab04.png" attr="h" comment="" date="1478262382" name="latex7a2dc0416ef5cd50c8b19fac02a6ab04.png" user="zyvb951" version="1" 
META FILEATTACHMENT 
attachment="latex19df92f2105f90259153868d5a538d41.png" attr="h" comment="" date="1478262419" name="latex19df92f2105f90259153868d5a538d41.png" user="zyvb951" version="1" 
META FILEATTACHMENT 
attachment="latex65f080f3620ec396ea774d0044eeec3d.png" attr="h" comment="" date="1478262452" name="latex65f080f3620ec396ea774d0044eeec3d.png" user="zyvb951" version="1" 
