Tuned UxV method requires:
* strip fired if ADC > ped+15
* SMD hit patterns: 000000xx000000 or 000000x000000
* UxV intesection points is in 0.6^2 of fiducial area of a tower
* tower MIP condition: ADC in [0.5,2]*MIP response (green lines on spectra)
* preshower1,2 MIP condition: ADC in [12,112]
* post-shower MIP condition: ADC in [6,106]
X-Y position of all MIP points (after mapping correction and masking of dead towers/tiles - described below) (PS.gz) .
View from the outside, sector numbering clock wise.
Magenta triangles mark 3 dead towers, red spots reflect 12 masked pre/post shower tiles.
All 4 leyers are working properly | Post-shower is broken
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tower spectrum has too large pedestal | after swap of towers A4 & A5 the pedestal is lower
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Table with plots (PDF) showing reponse of all 720 towers/pre/post to MIP:
PLOTS | PLOTS *) | broken elements | |
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sector 1 | spectra | yield | tower C6, post D12 |
sector 2 | spectra | yield | all works |
sector 3 | spectra | yield | post E12 |
sector 4 | spectra | yield | all works - within statistics |
sector 5 | spectra | yield | pres1: C10, D11, E2; pres2 E3 |
sector 6 | spectra | yield | tower A3 |
sector 7 | spectra | yield | tower C5, post D3; tower B9(x=17) had gain 40% too large -is fine |
sector 8 | spectra | yield | pres1 C11, post D7,D9,E5
funny pattern - but for now ( w/o gains) OK |
sector 9 | spectra | yield | all works |
sector 10 | spectra | yield | pres2 E10 |
sector 11 | spectra | yield | pres1 D3(x=49) has very low gain, but all OK within statistics |
sector 12 | spectra | yield | all works
note tower C5 with ped @ ADC ~230 works fine |
Key to X-axis index (Zig-zag from eta=1 -- > eta=2)
1=A12 11=A10 21=A8 31=A6 41=A4 51=A2 2=B12 12=B10 22=B8 32=B6 42=B4 52=B2 3=C12 13=C10 23=C8 33=C6 43=C4 53=C2 4=D12 14=D10 24=D8 34=D6 44=D4 54=D2 5=E12 15=E10 25=E8 35=E6 45=E4 55=E2 6=A11 16=A09 26=A7 36=A5 46=A3 56=A1 7=B11 17=B09 27=B7 37=B5 47=B3 57=B1 8=C11 18=C09 28=C7 38=C5 48=C3 58=C1 9=D11 19=D09 29=D7 39=D5 49=D3 59=D1 10=E11 20=E09 30=E7 40=E5 50=E3 60=E1