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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

Seed Cluster 3x3Cluster 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