Difference between revisions of "CDC transfer func attempt"

Revision as of 11:10, 15 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!

Integrated value of transfer function is 19.03 adc_units.us