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Message ID: 840     Entry time: Thu Jun 13 05:49:37 2019
Author: CA 
Subject: Further tests of calibration on Alpha data 
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






                              
Attachment 1: CalibSlope.pdf  48 kB  Uploaded Thu Jun 13 06:53:48 2019  | Hide | Hide all
CalibSlope.pdf
Attachment 2: z0ExplusEy.pdf  15 kB  Uploaded Thu Jun 13 06:58:33 2019  | Hide | Hide all
z0ExplusEy.pdf
Attachment 3: z0Ediff.pdf  14 kB  Uploaded Thu Jun 13 07:07:50 2019  | Hide | Hide all
z0Ediff.pdf
Attachment 4: z0exey.pdf  56 kB  Uploaded Thu Jun 13 07:07:50 2019  | Hide | Hide all
z0exey.pdf
Attachment 5: z0xdiff.pdf  18 kB  Uploaded Thu Jun 13 07:07:50 2019  | Hide | Hide all
z0xdiff.pdf
Attachment 6: z0ydiff.pdf  18 kB  Uploaded Thu Jun 13 07:07:50 2019  | Hide | Hide all
z0ydiff.pdf
Attachment 7: z1Ediff.pdf  14 kB  Uploaded Thu Jun 13 07:07:50 2019  | Hide | Hide all
z1Ediff.pdf
Attachment 8: z1exey.pdf  31 kB  Uploaded Thu Jun 13 07:07:50 2019  | Hide | Hide all
z1exey.pdf
Attachment 9: z1xdiff.pdf  16 kB  Uploaded Thu Jun 13 07:07:50 2019  | Hide | Hide all
z1xdiff.pdf
Attachment 10: z1ydiff.pdf  16 kB  Uploaded Thu Jun 13 07:07:50 2019  | Hide | Hide all
z1ydiff.pdf
Attachment 11: z2Ediff.pdf  14 kB  Uploaded Thu Jun 13 07:07:50 2019  | Hide | Hide all
z2Ediff.pdf
Attachment 12: z2eyex.pdf  32 kB  Uploaded Thu Jun 13 07:07:50 2019  | Hide | Hide all
z2eyex.pdf
Attachment 13: z2xdiff.pdf  16 kB  Uploaded Thu Jun 13 07:07:50 2019  | Hide | Hide all
z2xdiff.pdf
Attachment 14: z2ydiff.pdf  16 kB  Uploaded Thu Jun 13 07:07:50 2019  | Hide | Hide all
z2ydiff.pdf
Attachment 15: z3Ediff.pdf  14 kB  Uploaded Thu Jun 13 07:07:50 2019  | Hide | Hide all
z3Ediff.pdf
Attachment 16: z3exey.pdf  32 kB  Uploaded Thu Jun 13 07:07:50 2019  | Hide | Hide all
z3exey.pdf
Attachment 17: z3xdiff.pdf  16 kB  Uploaded Thu Jun 13 07:07:50 2019  | Hide | Hide all
z3xdiff.pdf
Attachment 18: z3ydiff.pdf  16 kB  Uploaded Thu Jun 13 07:07:50 2019  | Hide | Hide all
z3ydiff.pdf
Attachment 19: z4Ediff.pdf  14 kB  Uploaded Thu Jun 13 07:07:50 2019  | Hide | Hide all
z4Ediff.pdf
Attachment 20: z4eyex.pdf  33 kB  Uploaded Thu Jun 13 07:07:50 2019  | Hide | Hide all
z4eyex.pdf
Attachment 21: z4xdiff.pdf  16 kB  Uploaded Thu Jun 13 07:07:50 2019  | Hide | Hide all
z4xdiff.pdf
Attachment 22: z4ydiff.pdf  17 kB  Uploaded Thu Jun 13 07:07:50 2019  | Hide | Hide all
z4ydiff.pdf
Attachment 23: z5Ediff.pdf  14 kB  Uploaded Thu Jun 13 07:07:50 2019  | Hide | Hide all
z5Ediff.pdf
Attachment 24: z5eyex.pdf  36 kB  Uploaded Thu Jun 13 07:07:50 2019  | Hide | Hide all
z5eyex.pdf
Attachment 25: z5xdiff.pdf  17 kB  Uploaded Thu Jun 13 07:07:50 2019  | Hide | Hide all
z5xdiff.pdf
Attachment 26: z5ydiff.pdf  17 kB  Uploaded Thu Jun 13 07:07:50 2019  | Hide | Hide all
z5ydiff.pdf
Attachment 27: Screenshot_from_2019-06-13_06-18-42.png  10 kB  Uploaded Thu Jun 13 07:19:49 2019  | Hide | Hide all
Screenshot_from_2019-06-13_06-18-42.png
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