Brick Finding Package – Status Report

A. Chukanov, S. Dmitrievsky, Yu. Gornushkin

Joint Institute for Nuclear Research, Dubna

LNGS 11th October, 2006

Outline

• Package description

• Results

• Graphical User Interface

• Roadmap

• Conclusion

Program Algorithm

Cleaning Event

Cellular Automation

Reconstruction muon track directionHough Transform

Kalman Filter (from OpRec package)

Tracing Method

Reconstruction Hadron Jet direction

Reweighting hits method

Define wall with interaction

Neural Network

Find Brick

Define most probable brick

Results (CC events) “1 of 3” Full detector

Wall reconstruction efficiency:

1 wall 0.94 0.85

Brick finding efficiency

1 brick 0.71 0.702 bricks0.87 0.853 bricks0.91 0.92

GUI - Event Viewer

Execute event

Zoom buttons

Navigation buttons

Open Data files and Save PictureShow hits before and after selection

Drawing directions of Muon track And/Or Hadron Jet

Show particles or deposited energyMuon track reconstruction algorithm

Interactions type

Brick finding options

Program Development Button

Development

Online Event Viewer

develop the online data conversion to OPERA Root files

Map of inserted bricks

BMS people

Other BF algorithms can be added to our program

Conclusion

• Developed BF program (91% efficiency)

• Event Viewer is ready for online analysis

• We are ready to put the BF package to OPERA CVS repository

• We can implement all your suggestions