ELOG AIDA

AIDA GELINA BRIKEN nToF CRIB ISOLDE CIRCE nTOFCapture DESPEC DTAS EDI_PSA 179Ta CARME StellarModelling DCF K40

AIDA

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Entry time:	Sat Mar 29 11:18:24 2025
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> Alpha data used: /May19/{R1,R2,R7,R8,R9,R11} (c. 380 hr.) > > Absolute calibration calculated with relative calibrated data > > Data then resorted with absolute and relative gains applied > > Attachment 1 -> Ey vs Ex plot for all detectors, with slope Ey=Ex show in red. Some non-linearity present, but to first order looks good > > Attachment 2 -> Alpha peaks pre- absolute calibration in DSSD0 > Ex in blue, Ey in red > To determine absolute calibration coefficients, assigned leading edge of higher energy peak an energy of 7.4 MeV (Uranium decay series) > Divide this by the observed channel number (in keV) to get the absolute gain coefficients in keV/ch for Ex and Ey in each detector. > (Note, data already offset corrected, pulser walkthrough) > Values typically ~0.72 keV/ch > Multiply appropriately by relative gains obtained from gainMatch.cpp to get final gain coefficients. > > Attachments 3 - 6 -> DSSD0 -> Ex - Ey > -> Ey vs Ex > -> Ex - Ey vs x strip > -> Ex - Ey vs y strip > > Attachments 7 - 10 -> DSSD1 -> Ex - Ey > -> Ey vs Ex > -> Ex - Ey vs x strip > -> Ex - Ey vs y strip > > Attachments 11 - 14 -> DSSD2 -> Ex - Ey > -> Ey vs Ex > -> Ex - Ey vs x strip > -> Ex - Ey vs y strip > > Attachments 15 - 18 -> DSSD3 -> Ex - Ey > -> Ey vs Ex > -> Ex - Ey vs x strip > -> Ex - Ey vs y strip > > Attachments 19 - 22 -> DSSD4 -> Ex - Ey > -> Ey vs Ex > -> Ex - Ey vs x strip > -> Ex - Ey vs y strip > > Attachments 23 - 26 -> DSSD5 -> Ex - Ey > -> Ey vs Ex > -> Ex - Ey vs x strip > -> Ex - Ey vs y strip > > Attachment 27 -> Table comparing sigma and peak centroids of Ex - Ey plots for each DSSD > Calculated using simple gaussian fit > > > > > > > Encoding: HTML ELCode plain Suppress Email notification

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