preliminary results of tb analysis
DESCRIPTION
PRELIMINARY RESULTS OF TB ANALYSIS. J. Caride, C. Iglesias, P. Vazquez USC – Dpto. Fisica Particulas. INDEX. FIRST RESULTS CUT 500 ADU THE BEST RESULTS - SIGNALS RW AND RWM - RESIDUALS RW AND RWM LANGAUS FIT ALL RUN 2169 CONCLUSION. Analysis Chain for TB DATA. READ FILES . - PowerPoint PPT PresentationTRANSCRIPT
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PRELIMINARYRESULTS OF TB ANALYSIS
J. Caride, C. Iglesias, P. VazquezUSC – Dpto. Fisica Particulas
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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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Seed Cluster 3x3 Cluster 5x5
PROBLEM SEED < 500 ADU
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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
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RESIDUALS RW
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RESIDUALS RWM
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GAUS FIT BETWEEN (-3 3) RWM
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IS THIS FIT GOOD ?
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WE GET SIMILAR RESULTS WITH ROW WISE AND ROW WISE MEDIAN
BUT WE USE RWM IN THE NEXT SLIDES
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SIGNALS ALL RUN 2169
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RESIDUALS ALL RUN 2169
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LANGAUS FIT H3.0.04
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CLUSTER SINAL 3X3 LANGAUS FIT
H3.0.04
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CONCLUSION
WE DON´T KNOW IF THE RESIDUALS ARE GOOD. WE THINK THE RESIDUALS OF DUT (D2) ARE
BAD, IT IS HIGH IN X AXE