Complain

See elog mfxp17518 run 108
Aaron B. reports some problems with the background and images in the region of the water ring. Images with this type of problem fail to index...

Check of constants

constants for mfxp17518 MfxEndstation.0:Epix10ka2M.0

/reg/d/psdm/mfx/mfxp17518/calib/Epix10ka2M\:\:CalibV1/MfxEndstation.0\:Epix10ka2M.0/pedestals/
/reg/d/psdm/mfx/mfxp17518/calib/Epix10ka2M\:\:CalibV1/MfxEndstation.0\:Epix10ka2M.0/pixel_gain/

Pedestals and pixel gains were generated correctly.

Offsets were taken from exp=mfxc00118:run=172

pedestals from exp=mfxp17518:run=92

pixel_gain: used constant gains

Plots for different gains

constant gains
gains from charge injection

Check charge injection algorithm for selected pixels

Hart, Philip Adam <philiph@slac.stanford.edu>
Thu 9/24/2020 11:52 AM
To: O'Grady, Paul Christopher
Cc: Dubrovin, Mikhail
I'm working in the data frame, except I've flattened the array for some reason.  So the standard bad behavior can be seen in module 6, pixel 7777 in my ntuple:
>>> 96*4
384
>>> 7777/384
20
>>> 7777%384
97

so [6, 20, 97] and all around there.
I see somewhat ok behavior in [14, 20, 97].
[2, 20, 97] and [10, 20, 97] seem plain ok.
[6, 4, 117] looks bad.  [2, 4, 117] seems ok.
[10, 218, 53] is pathological in a check-mark way.
[2, 286, 207] is pathological in a check-mark way.

- Philip
=====
Hart, Philip Adam <philiph@slac.stanford.edu>
Fri 9/25/2020 10:38 AM
Here are some pixels which are problematic in (calibrated) AML-L in module 6 in both water and air scatter for the limited events I scanned in mfxp175 run 108 and mfxc00118 run 190, respectively:

module row col nBadWater nBadAir
6 175 172 21 150
6 176 107 116 174
6 156 191 25 174
6 268 177 161 150
6 175 161 25 155
6 95 191 21 108
6 93 69 183 508
6 175 180 30 202
6 175 185 24 149
6 175 186 27 196
6 168 191 23 159
- Philip

good pixel 2, 20, 97

bad pixel 6, 20, 97

epix10ka_offset_calibration -e mfxc00118 -d MfxEndstation.0:Epix10ka2M.0 -r172 -o ./work1 -s5 -i6 -G20,97

pathological in a check-mark way 10, 218, 53

pathological in a check-mark way 2, 286, 207

BadWater 6, 175, 172

epix10ka_offset_calibration -e mfxc00118 -d MfxEndstation.0:Epix10ka2M.0 -r172 -o ./work1 -s5 -i6 -G175,172

BadAir 6, 21, 150

epix10ka_offset_calibration -e mfxc00118 -d MfxEndstation.0:Epix10ka2M.0 -r172 -o ./work1 -s5 -i6 -G21,150

BadWater 6, 168, 191

epix10ka_offset_calibration -e mfxc00118 -d MfxEndstation.0:Epix10ka2M.0 -r172 -o ./work1 -s5 -i6 -G168,191

BadAir 6, 23, 159

epix10ka_offset_calibration -e mfxc00118 -d MfxEndstation.0:Epix10ka2M.0 -r172 -o ./work1 -s5 -i6 -G23,159

Chi2

Commands to generate plots

bsub -o 2020-09-28-mfxc00118-r0172-offset-log06 -q psanaq epix10ka_offset_calibration -e mfxc00118 -d MfxEndstation.0:Epix10ka2M.0 -r172 -o work -p -C -i6

plims panels/0000000001-0176294657-0218103830-1010951301-0019435010-0000000000-0000000000/gain/epix10ka_0069_20200915184723_mfxc00118_r0172_chi2ci_AHL-H.dat
plims panels/0000000001-0176294657-0218103830-1010951301-0019435010-0000000000-0000000000/gain/epix10ka_0069_20200915184723_mfxc00118_r0172_chi2ci_AHL-L.dat
plims panels/0000000001-0176294657-0218103830-1010951301-0019435010-0000000000-0000000000/gain/epix10ka_0069_20200915184723_mfxc00118_r0172_chi2ci_AML-L.dat
plims panels/0000000001-0176294657-0218103830-1010951301-0019435010-0000000000-0000000000/gain/epix10ka_0069_20200915184723_mfxc00118_r0172_chi2ci_AML-M.dat

chi2 for AHL-H, AHL-L, AML-M, AML-L

panel 2

panel 2 tail of large values of chi2

panel 6

panel 6 tail of large values of chi2

Gain

All single-panel gain is presented in raw units from the fit ADU/<event-number>. In combined for detector plots gain is derived from calibration constants normalized on Gabriel's gain factors in ADU/keV (factor of 3 smaller than raw).

gain and negative tail for AML-L

panel 2

raw gain from fit in ADU/event

panel 6

raw gain from fit in ADU/event

WARNING: panel 6 one ASIC gain is almost twice smaller than ion other 3 ASICS ... we replace it by constant 0.164 ADU/keV, see Gain factors from Gabriel