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Entry  Tue Apr 24 14:37:39 2018, Anchal and Andrew, DailyProgress, BEAT, Beam Profiling Beatnote detector BeamradiusProfile.pngBeam_Profile_Beatnote_-_Sheet1.csvfitatz500.png
    Reply  Wed Apr 25 12:25:09 2018, awade, DailyProgress, BEAT, Beam Profiling Beatnote detector 
       Reply  Thu May 3 22:05:23 2018, awade and anchal, DailyProgress, BEAT, Beam Profiling Beatnote detector 20180503_193329.jpg
          Reply  Wed May 9 00:51:45 2018, anchal, DailyProgress, BEAT, Beam Profiling Beatnote detector FitGraphs.pdf
             Reply  Wed May 9 08:56:54 2018, Neo, DailyProgress, BEAT, Beam Profiling Beatnote detector 
                Reply  Thu May 10 18:18:06 2018, Anchal, DailyProgress, BEAT, Beam Profiling Beatnote detector ModifiedFitWithNewData.pdfDataAndCode.zip
Message ID: 2177     Entry time: Tue Apr 24 14:37:39 2018     Reply to this: 2178
Author: Anchal and Andrew 
Type: DailyProgress 
Category: BEAT 
Subject: Beam Profiling Beatnote detector 

Today, we did the beam profiling for the beatnote detector just before the photodiode. I have attached the data taken. The z values mentioned are from a point which is 2.1 inch away from a marked line on the stage.

However, the analysis concludes that either the beam radius changes too slowly to be profiled properly with given method of measurement or something else is wrong. Attaching the the z vs w(z) plot from this data and few fit plots.

 

Attachment 1: BeamradiusProfile.png  92 kB  Uploaded Tue Apr 24 20:04:59 2018  | Hide | Hide all
BeamradiusProfile.png
Attachment 2: Beam_Profile_Beatnote_-_Sheet1.csv  3 kB  Uploaded Tue Apr 24 20:05:47 2018  | Hide | Hide all
Ref Z: 2.1 inch,,,
Z-position (mils),Edge X Value (mils),Reading (mV),
-500,175,11,11
-500,180,11,11
-500,185,12,12
-500,190,15,16
-500,195,22,25
-500,200,39,42
-500,205,67,70
-500,210,99,105
... 175 more lines ...
Attachment 3: fitatz500.png  23 kB  Uploaded Tue Apr 24 20:06:31 2018  | Hide | Hide all
fitatz500.png
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