Difference between revisions of "CDC transfer func attempt"

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|[[Image:run_31491_meanupsampledadc.png|thumb|x250px|mean of upsampled fADC data]]
 
|[[Image:run_31491_meanupsampledadc.png|thumb|x250px|mean of upsampled fADC data]]
 
|[[Image:run_31491_fit.png|thumb|x250px|fitted function]]
 
|[[Image:run_31491_fit.png|thumb|x250px|fitted function]]
|[[Image:run_31941_fit2.png|thumb|x250px|refit with powers fixed]]
+
|[[Image:run_31941_fit2.png|thumb|x250px|blue=refit with powers fixed, pink= pars 137, 118, 8, 91.4, 9]]
 
|}
 
|}
  
 
Beware typos in filenames, this was run #31941!
 
Beware typos in filenames, this was run #31941!

Revision as of 17:01, 14 April 2014

Setup
Setup (GS 4001)

Circuit

Charge injection circuit from Fernando's GlueX-doc-1364

Actual component values used were... 51.1 Ohms, 908 Ohms and 2pF

Early results

100mV leading edge of sq wave step up (yellow) and trigger from pulser (purple) - average
output of shaper - average
output of shaper - expanded time scale
output of fadc - average
output of fadc - expanded time scale

Final results

Borrowed Phillips 5771 (no attenuators needed)

pulser output - single
pulser output - average
pulser output - average


output of shaper - single
output of shaper - average
output of shaper - average
fADC data
upsampled fADC data

Fitted function

mean of upsampled fADC data
fitted function
blue=refit with powers fixed, pink= pars 137, 118, 8, 91.4, 9

Beware typos in filenames, this was run #31941!