# Difference: 20151127_MSciSpectrocopyLab (1 vs. 3)

#### Revision 328 Nov 2015 - JosephBayley

Line: 1 to 1

 META TOPICPARENT name="StewartBoogertSpectroscopy2015"

# Additional Data Taking

Line: 8 to 8

• Using the Helium lamp, with micrometer set at 4.0mm.
• Starting at 0.05s exposure time, increasing in 0.05s increments, finishing at 1s.
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-- AshleaKemp - 27 Nov 2015

 META FILEATTACHMENT attachment="latex36aba0fbae95c73643ac90e9c7dde91c.png" attr="h" comment="" date="1448624412" name="latex36aba0fbae95c73643ac90e9c7dde91c.png" user="zxap013" version="1"
>
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 META FILEATTACHMENT attachment="20151127_JB_AK.zip" attr="h" comment="" date="1448739982" name="20151127_JB_AK.zip" path="20151127_JB_AK.zip" size="74029750" user="zxap044" version="1"

#### Revision 227 Nov 2015 - AshleaKemp

Line: 1 to 1

 META TOPICPARENT name="StewartBoogertSpectroscopy2015"

# Additional Data Taking

• Previously, plotted against exposure time for one spectral line from the Helium lamp
• Noticed this plot was not smooth, and fluctuated quite significantly for different exposure time
Changed:
<
<
• To try and smooth out this plot, we are taking 5 frames at each exposure time and finding the average error, rather than just analysing the one.
>
>
• To try and smooth out this plot, we are taking 10 frames at each exposure time and finding the average error, rather than just analysing the one.

• Using the Helium lamp, with micrometer set at 4.0mm.
Changed:
<
<
• Starting at 0.05s exposure time, increasing in 0.05s increments.
>
>
• Starting at 0.05s exposure time, increasing in 0.05s increments, finishing at 1s.
-- AshleaKemp - 27 Nov 2015

#### Revision 127 Nov 2015 - AshleaKemp

Line: 1 to 1
>
>
 META TOPICPARENT name="StewartBoogertSpectroscopy2015"

# Additional Data Taking

• Previously, plotted against exposure time for one spectral line from the Helium lamp
• Noticed this plot was not smooth, and fluctuated quite significantly for different exposure time
• To try and smooth out this plot, we are taking 5 frames at each exposure time and finding the average error, rather than just analysing the one.
• Using the Helium lamp, with micrometer set at 4.0mm.
• Starting at 0.05s exposure time, increasing in 0.05s increments.

-- AshleaKemp - 27 Nov 2015

 META FILEATTACHMENT attachment="latex36aba0fbae95c73643ac90e9c7dde91c.png" attr="h" comment="" date="1448624412" name="latex36aba0fbae95c73643ac90e9c7dde91c.png" user="zxap013" version="1"

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