Susanna Guatelli

Susanna GuatelliCERN, INFN Genova

Statistical ToolkitStatistical Toolkit

MeetingMeeting

Geant4 GeneralGeant4 General

Physics TestPhysics Test

AIDA WorkshopAIDA WorkshopCERN 2thJuly 2003

Test & Analysis ProjectTest & Analysis ProjectTest & Analysis ProjectTest & Analysis Project

http://www.ge.infn.it/geant4/analysis/TandA

Proton Bragg Peak

Susanna Guatelli

Test & AnalysisTest & Analysis is a project to develop a statistical analysis system for usage in Geant4 testing

Provide tools to compare Geant4 simulation results Provide tools to compare Geant4 simulation results with reference datawith reference data

– equivalent reference distributions (for instance, regression testing)– experimental measurements– data libraries from reference distribution sources– functions deriving from theoretical calculations or from fits

physics validation

regression testing

system testing

What is the Test & Analysis project? What is the Test & Analysis project? What is the Test & Analysis project? What is the Test & Analysis project?

Main application areasMain application areas

Susanna Guatelli

Flow of the test and analysis process Flow of the test and analysis process Flow of the test and analysis process Flow of the test and analysis process

Benchmarks about G4 Physics models

1.Study of the test

to perform

2.Realisation of

the test

3.First results,

first evaluations

4.Automatisation

Of the test

5.Physics

distributions

6.Statistics

toolkit

7.Results of

Statistic comparisonG4test / ref.data

8.Evaluation of the

resultsWhat is ok?

What must be improved?

Regression testNext testNext test

Susanna Guatelli

Physics Tests: present situation Physics Tests: present situation Physics Tests: present situation Physics Tests: present situation

Electromagnetic

physics:

Hadronic

physics

Particle CSDA range Particle Stopping PowerTransmission coefficientBackscattering coefficientGamma Attenuation coefficient Gamma processes’ cross section

Proton Bragg Peak Study of possible tests to perform

Next step

Angular distribution Auger effect Fluorescence

Susanna Guatelli

Test resultsTest resultsTest resultsTest results

•G4LowE EPDL•G4Standard•NIST reference data

•Test output : • xml file (vector of points x, y, ex, ey )• .hbk file (histograms, ntuple)

•Now in “regime” condition the

production is about 1360 .xml files

•Observation: now few tests are running •Future problem: management of the large amount of results

Pb Stopping Power

The Test uses AIDA/Anaphe for the analysis

Susanna Guatelli

Essential features of Statistical Toolkit Essential features of Statistical Toolkit Essential features of Statistical Toolkit Essential features of Statistical Toolkit

• Management of both .xml and .hbk files• Management of vector of points, histograms and ntuples• Statistical study of both discrete and continuous distributions• Management and statistical study of data affected or not by errors• Simple user interface

Open problems...Open problems...Open problems...Open problems...

• The test should be inserted in Geant4 regression test as routine test

• Interface between Geant4 General Physics Test and Statistical Toolkit is missing• Automatisation of the system test

+analysis• Management of Test50 and Statistical

Toolkit results

Susanna Guatelli

Team of Geant4 TestTeam of Geant4 TestTeam of Geant4 TestTeam of Geant4 TestThe performed tests were established with the help of: Vladimir Ivanchenko (CERN) Michelle Maire (CERN)Maria Grazia Pia (INFN, Genova)

Coordinators:Susanna Guatelli (CERN, INFN, University of Genova)Barbara Mascialino (INFN, Genova)

Realisation of tests:Pablo Cirrone (INFN Catania)Susanna GuatelliAlfonso Mantero (University of Genova, ESA) Luciano Pandola (INFN, Gran Sasso)

Automatisation of test in results’ production :Sandra Parlati (INFN, Gran Sasso)

Statistical analysis:Stefania Donadio (INFN, Genova)Barbara Mascialino Paolo Viarengo (IST, Genova)