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FH

FM

FL

AHL-H

AHL-L

AML-M

AML-L

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

good pixel 2, 20, 97

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bad pixel 6, 20, 97

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

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

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

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Summary

• Minor detector damage is observed in a few constant types - in charge injection gains for FL, AHL-L, AML-L
• Charge injection gains in stead of uniform constant gains can be used to eliminate this effect.

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