Difference: AtfBpmNewLogBook_20111212_FsBcalstats (1 vs. 6)

Revision 616 Apr 2012 - webmanip_5fw2sw_2esh

Line: 3 to 3
 

FS-Bump Calibration Statistics

All bump calibrations taken during first calibration shift

Changed:
<
<
>
>
  There were two files for each BPM to which the conventional calibration analysis could be applied as well as an additional ten calibrations for QF11Xy. Histogram of the results:

Revision 516 Apr 2012 - webmanip_5foldt2nt_2esh

Line: 1 to 1
 
META TOPICPARENT name="AtfBpmNewLogBook"

FS-Bump Calibration Statistics

Line: 41 to 41
 
Changed:
<
<
META FILEATTACHMENT attachment="fsbscares.png" attr="h" comment="" date="1323692338" name="fsbscares.png" path="fsbscares.png" size="31997" stream="fsbscares.png" user="Public.FrancisCullinan" version="1"
META FILEATTACHMENT attachment="mreadback.png" attr="h" comment="" date="1323821684" name="mreadback.png" path="mreadback.png" size="123328" stream="mreadback.png" user="Public.FrancisCullinan" version="1"
>
>
META FILEATTACHMENT attachment="fsbscares.png" attr="h" comment="" date="1323692338" name="fsbscares.png" path="fsbscares.png" size="31997" stream="fsbscares.png" user="Public.FrankieCullinan" version="1"
META FILEATTACHMENT attachment="mreadback.png" attr="h" comment="" date="1323821684" name="mreadback.png" path="mreadback.png" size="123328" stream="mreadback.png" user="Public.FrankieCullinan" version="1"

Revision 414 Dec 2011 - FrancisCullinan

Line: 1 to 1
 
META TOPICPARENT name="AtfBpmNewLogBook"

FS-Bump Calibration Statistics

Line: 12 to 12
  There were six repeat calibrations for QF11X which all three analyses were used to analyse. The resulting standard deviations for each analysis were
Changed:
<
<
Method σ/μm σ/% σiqrot/μm
>
>
Method σ/μm σ/% σiqrot/rads
 
Conventional 119.6 8.68 0.00298
Jitter subtracted 118.8 8.36 0.00223
SVD based 100.9 7.19 0.00251

I replaced the constant bump position with the position reading from the other BPM inside the orbit bump. This seems to reduce the variation but is it may not be possible in all cases:

Changed:
<
<
Method σscale/μm σscale/% σiqrot/μm
>
>
Method σscale/μm σscale/% σiqrot/rads
 
Conventional 96.48 7.08 0.00298
Jitter subtracted 109.7 7.65 0.00223
SVD based 79.18 5.72 0.00256

Revision 314 Dec 2011 - FrancisCullinan

Line: 1 to 1
 
META TOPICPARENT name="AtfBpmNewLogBook"

FS-Bump Calibration Statistics

Line: 12 to 12
  There were six repeat calibrations for QF11X which all three analyses were used to analyse. The resulting standard deviations for each analysis were
Changed:
<
<
Method σ/μm σ/%
Conventional 119.6 8.68
Jitter subtracted 118.8 8.36
SVD based 100.9 7.19
>
>
Method σ/μm σ/% σiqrot/μm
Conventional 119.6 8.68 0.00298
Jitter subtracted 118.8 8.36 0.00223
SVD based 100.9 7.19 0.00251

I replaced the constant bump position with the position reading from the other BPM inside the orbit bump. This seems to reduce the variation but is it may not be possible in all cases:

Method σscale/μm σscale/% σiqrot/μm
Conventional 96.48 7.08 0.00298
Jitter subtracted 109.7 7.65 0.00223
SVD based 79.18 5.72 0.00256
 
Added:
>
>
mreadback.png
 
Line: 30 to 38
 
Added:
>
>
 
META FILEATTACHMENT attachment="fsbscares.png" attr="h" comment="" date="1323692338" name="fsbscares.png" path="fsbscares.png" size="31997" stream="fsbscares.png" user="Public.FrancisCullinan" version="1"
Added:
>
>
META FILEATTACHMENT attachment="mreadback.png" attr="h" comment="" date="1323821684" name="mreadback.png" path="mreadback.png" size="123328" stream="mreadback.png" user="Public.FrancisCullinan" version="1"

Revision 213 Dec 2011 - FrancisCullinan

Line: 1 to 1
 
META TOPICPARENT name="AtfBpmNewLogBook"

FS-Bump Calibration Statistics

Added:
>
>
All bump calibrations taken during first calibration shift
 
Changed:
<
<
There were only enough data for the conventional Fs-bump calibration to create a histogram
>
>
There were two files for each BPM to which the conventional calibration analysis could be applied as well as an additional ten calibrations for QF11Xy. Histogram of the results:
  fsbscares.png
Changed:
<
<
There were six repeat calibrations for which all three analyses were used. The resulting standard deviations were
>
>
There were six repeat calibrations for QF11X which all three analyses were used to analyse. The resulting standard deviations for each analysis were
 
Method σ/μm σ/%
Conventional 119.6 8.68

Revision 112 Dec 2011 - FrancisCullinan

Line: 1 to 1
Added:
>
>
META TOPICPARENT name="AtfBpmNewLogBook"

FS-Bump Calibration Statistics

There were only enough data for the conventional Fs-bump calibration to create a histogram

fsbscares.png

There were six repeat calibrations for which all three analyses were used. The resulting standard deviations were

Method σ/μm σ/%
Conventional 119.6 8.68
Jitter subtracted 118.8 8.36
SVD based 100.9 7.19

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META FILEATTACHMENT attachment="fsbscares.png" attr="h" comment="" date="1323692338" name="fsbscares.png" path="fsbscares.png" size="31997" stream="fsbscares.png" user="Public.FrancisCullinan" version="1"
 
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