PRELIMINARY RESULTS OF TB ANALYSIS J. Caride, C. Iglesias, P. Vazquez USC – Dpto. Fisica...
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Transcript of PRELIMINARY RESULTS OF TB ANALYSIS J. Caride, C. Iglesias, P. Vazquez USC – Dpto. Fisica...
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INDEX
• FIRST RESULTS• CUT 500 ADU• THE BEST RESULTS
- SIGNALS RW AND RWM - RESIDUALS RW AND RWM
• LANGAUS FIT• ALL RUN 2169• CONCLUSION
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Analysis Chain for TB DATA
READ FILES
PEDESTALS
CLUSTER FILTER
ETA CORRECTION
HITMAKER
ALIGNMENT
Converts .dat files to .slcio files
Calculates de pedestals and noise value
Searches withincurrent data matrix for clusters find seed and neighboursTwo Step: 1- Calculate clusters 2 – Filter the clusters
Give the value of the cluster center correcting the center of gravity position obtained with mass technique
Convert a local cluster in the detector frame of reference to space point in the telescope frame of reference
Finds track candidates from eta corrected high quality hits using millepede 2
CORRECT POSITION
MULTILINEAR FIT
Apply the Correction Position to the hits
Fits multiple parameters straight lines throught telescope planes of one event . Writes all cluster, hit and track parameters to root ntuple.
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FIRST RESULTSDETECTOR HITMAP
0 24057
1 19525
DUT H3.0.04 14219
3 18684
4 18396
5 18496
USED CHRISTIAN JULIA FILESPROBLEMS
A LOT OF HITS IN 1º DETECTORWE HAVE 1º Y 2º DETECTOR WITH SEED < 500
EXPLICATIONPRAGA PEOPLE NOISE
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CUT 500 ADU AND ROI IN CENTRE ALL MATRIX
-DELETE PEAK < 500 ADU- CoG = FULL - SIZE CLUSTER = 5 X 5- Take as REGION OF INTEREST (ROI) the central part of the matrix in all detector
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THE BEST RESULTS WITHBADPIXELMASKINGALGORITHM=NOISEDISTRIBUTIONCOMMON MODE ALGORITHM = RWM OR RWHITREJECTIONCUT =7CLUSTERINGALGO = FIXEDFRAMEFFCLUSTERCUT=2.6FFCLUSTERSIZE(X,Y)= (5,5)FFSEEDCUT=7INSIDEREGION = ( ALL 7 7 57 249)SEEDMINCHARGE= (500 500 500 500 500 500 )CLUSTERTYPESELECTION = NXMPIXEL=3X3 [“ONLY SINGLE PIXEL”]TELESCOPERESOLUTION = 5CHI2XMAX=10
“ONLY RUN 2169-000.dat DUT H3.0.04 => we only have used one partition.”
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SIGNALS RW
DUT H3.0.04
H3.0.06
H3.0.010
H3.0.16
H3.0.012
H3.0.11
BAD =3
BAD =8
BAD =0
BAD =130
BAD =0
BAD =12
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SIGNALS RWMH3.0.06
H3.0.16
DUT H3.0.04
H3.0.012
H3.0.11
H3.0.010
BAD=4
BAD=3
BAD=0
BAD=0
BAD=0
BAD=130