1 / 41

Status and perspectives

Status and perspectives. Maria Grazia Pia, INFN Genova in rappresentanza del gruppo Geant4-INFN. http://www.ge.infn.it/geant4/. Commissione Calcolo e Reti Castiadas, 28 maggio 2004. Main activities of the Geant4-INFN group. Physics Low Energy Electromagnetic physics

dreser
Télécharger la présentation

Status and perspectives

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Status and perspectives Maria Grazia Pia, INFN Genova in rappresentanza del gruppo Geant4-INFN http://www.ge.infn.it/geant4/ Commissione Calcolo e Reti Castiadas, 28 maggio 2004

  2. Main activities of the Geant4-INFN group • Physics • Low Energy Electromagnetic physics • OOAD of electromagnetic physics in general • physics test framework and physics validation • starting: verification of hadronic physics • Advanced Examples • verification of geant4 capabilities in various experimental domains, identification of new requirements, user support • Statistical Toolkit • a software system for statistical data analysis • needed by Geant4 for physics validation and regression testing (comparison of distributions)

  3. Physics Activities of Geant4-INFN in the past period: • Development: new set of precise low energy processes, entire Penelope re-engineered into Geant4 (INFN LNGS) • OOAD of final state to accommodate new precise angular distributions (followed by implementation by LIP) • Major effort in systematic testing and validation, • T&A project (INFN Genova, LNGS, LNS) Currently in progress: • new (original) model of PIXE (INFN Genova)

  4. Test & Analysis Project The project is organized in two branches: • A standalone Statistical ToolkitIt has attracted a great interest in the HEP community, since no common tools for advanced statistical data analysis exists in HEP • contributions from L. Lista, BaBar INFN-NA • used by CMS for regression testing and their simulation validation • Distributed in LCG PI Project as external contribution • A physics testing system for quantitative validation of Geant4 physicsFirst phase: validation of Geant4 electromagnetic physics at microscopic level, w.r.t. established reference databases (e.g. NIST) and published data.

  5. Electromagnetic models in Geant4 w.r.t. NIST reference ESA Bepi Colombo mission to Mercury Test beam at Bessy NIST Geant4 Standard Geant4 LowE Photon attenuation coefficient, Al Fluorescence spectrum from Icelandic basalt (Mars-like rock): experimental data and simulation Statistical Toolkit: the motivation from Geant4 Validation of Geant4 physics models through comparison of simulation vs experimental data or reference databases

  6. GoF algorithms • Algorithms for binned distributions • Anderson-Darling test • Chi-squared test • Fisz-Cramer-von Mises test • Tiku test (Cramer-von Mises test in chi-squared approximation) • Algorithms for unbinned distributions • Anderson-Darling test • Fisz-Cramer-von Mises test • Goodman test (Kolmogorov-Smirnov test in chi-squared approximation) • Kolmogorov-Smirnov test • Kuiper test • Tiku test (Cramer-von Mises test in chi-squared approximation)

  7. http://www.ge.infn.it/geant4/analysis/HEPstatistics/ Will be moved to a new area out of Geant4-INFN web (automatic re-direction)

  8. ESA Bepi Colombo mission to Mercury test beam at Bessy Electromagnetic models in Geant4 w.r.t. NIST reference NIST Geant4 Standard Geant4 LowE Photon attenuation coefficient, Al Anderson-Darling Ac (95%) =0.752 2N-L=13.1 – =20 p=0.87 Fluorescence spectrum from Icelandic basalt (Mars-like rock): experimental data and simulation 2N-S=23.2 – =15 p=0.08 Example of application results

  9. Some Geant4 physics validation results... Geant4 Standard Electromagnetic Models Geant4 Low Energy Electromagnetic Models NIST reference c2Geant4 Low Energy = 13.1, n = 20, p-value = 0.87 c2Geant4 Standard = 23.2, n = 15, p-value = 0.08

  10. 2N-L= 12.9– =8 - p=0.12 2N-S=8.7 – =6 - p=0.19 NIST-XCOM G4 Standard G4 LowE Compton Scattering - Al

  11. NIST-XCOM G4 LowE Rayleigh Scattering - Al 2N-L=13.6 – =11 - p=0.26

  12. NIST-XCOM G4 LowE Penelope Photoelectric effect - Fe

  13. NIST-XCOM G4 Standard G4 LowE Pair Production - Si

  14. NIST-XCOM G4 LowE Penelope X-ray Attenuation Coefficient - Al 2N-P=15.9 – =19 p=0.66

  15. NIST-ESTAR G4 Standard G4 LowE CSDA Range - Al

  16. NIST-ESTAR G4 Standard G4 LowE Stopping Power - Pb

  17. Angular distribution of transmitted electrons

  18. Lockwood et al. (1981) G4 LowE Backscattering coefficient – E=100keV Angle of incidence (with respect to the normal to the sample surface) = 0°

  19. Backscattering low energies - Au Note: experimental data often exhibit large differences!

  20. ...and many more • Hundreds of plots produced • ...and many more to be produced • Automated testing system set up • + statistical analysis with Statistical Toolkit • Will be the basis for Geant4 Physics Book

  21. Geant4 Physics Book • A project, launched by MGP, to publish a comprehensive reference on Geant4 physics and validation results • same style as BaBar Physics Book, LEP Yellow Reports etc. • Regular workshops for coordination of the work and progress tracking • agreed frequence every 2 months approximately • last one in December 2003 • meetings stopped by lack of travel money: next one in June 2003 • Production stopped • lack of computing resources • lack of travel money for design iteration and coordination

  22. Advanced Examples • Geant4 Advanced Examples demonstrate Geant4 capabilities in specific experimental set-ups • They are useful for testing/validation purpose, and are a primary tool of user support • 2003 • Coordination of significant extensions and design/code improvements. • New LHC example (LHCb-like RICH) • New DICOM example (interface between DICOM image standard and Geant4 geometry, allows to import a CT image directly into Geant4) • 2004 • New Hadrontherapy example + validation with experimental data from CATANA in progress (also in view of the CNAO project and new hadrontherapy project in Sicily), INFN LNS • Medical LINAC (in collaboration with IST), INFN Genova • Radioprotection (former responsibility by INFN Cosenza, who withdrew from Geant4 without fulfilling its commitment): taken over by INFN Genova, re-focused on shielding study in space environment • Significant coordination effort (other new examples in progress: gravitational waves, air shower experiment, radiation damage to components, Geant4 in distributed computing environment)

  23. GRID-related activities • Interface between Geant4 applications and Geant4 via an intermediate layer, to shield applications from underlying GRID infrastructure and complexity (DIANE project) • From CT to the GRID: project for fast, precise simulation for radiotherapic dosimetry in a distributed computing environment • “Geant4 on GRID” tests in Catania • creation of rpm, useful for Geant4 installation anyway • HEP Statistics Toolkit, in connection with LCG Application Area

  24. Recent publications on refereed journals • S. Agostinelli et al., Geant4: a Simulation Toolkit • NIM A 506 (2003), 250-303 • J. Knobloch and M.G. Pia, Trends in Computing, • accepted for publication in IEEE Trans. Nucl. Scie. • S. Donadio, S. Guatelli, B. Mascialino, A. Pfeiffer, M.G. Pia, A. Ribon, P. Viarengo, Data Analysis in HEP: a Statistical Toolkit, • accepted for publication in IEEE Trans. Nucl. Scie. • L. Peralta, M. G. Pia, P. Rodrigues, A. Trindade, J. Varela, • GEANT4 Applications and Developments for Medical Physics Experiments, • accepted for publication in IEEE Trans. Nucl. Scie. • P. G. A. Cirrone, G. Cuttone, S. Donadio, S. Guatelli, S. Lo Nigro, B. Mascialino, M. G. Pia, L. Raffaele, G. M. Sabini, • Implementation of a New Monte Carlo Simulation Tool for the Development of a Proton Therapy Beam Line and Verification of the Related Dose Distributions, • accepted for publication in IEEE Trans. Nucl. Scie.

  25. Conferences 2003 • Trends in Computing  M.G. Pia and J. Knobloch, Plenary talk at IEEE Nuclear Science Symposium, Portland, October 200 • Simulation of X-ray Fluorescence and Application to Planetary Astrophysics  A. Mantero et al., IEEE Nuclear Science Symposium, Portland, October 2003 • Precision Validation of Geant4 Electromagnetic Physics   S. Guatelli et al., IEEE Nuclear Science Symposium, Portland, October 2003 • Data Analysis in HEP: a Statistical Toolkit  B. Mascialino et al., IEEE Nuclear Science Symposium, Portland, October 2003 • A new Monte Carlo Simulation Tool for the Development of a Proton Therapy Beam Line and Verification of the Related Dose Distributions  P. Cirrone et al., IEEE Nuclear Science Symposium and Medical Imaging Conference, Portland, October 2003 • From DICOM to GRID: a dosimetric system for brachytherapy born from HEP  S. Guatelli et al., IEEE Nuclear Science Symposium, Portland, October 2003 • Radiotherapy treatment planning with Monte Carlo on a distributed system  S. Chauvie et al., IEEE Nuclear Science Symposium and Medical Imaging Conference, Portland, October 2003 • Overview of Geant4 applications in Medical Physics  S. Guatelli et al., IEEE Nuclear Science Symposium and Medical Imaging Conference, Portland, October 2003 • Hadron therapy medical applications   P. Cirrone et al., 8th ICATPP Conf. on Astroparticle, Particle, Space Physics, Detectors and Medical Physics Applications, Como, 2003 • Distributed Processing, Monte Carlo and CT interface for Medical Treatment Plans   M.G. Pia et al., 8th ICATPP Conf. on Astroparticle, Particle, Space Physics, Detectors and Medical Physics Applications, Como, 2003 • Un esempio di trasferimento tecnologico dalla fisica delle alte energie alla pratica clinica radioterapica: sviluppo di un toolkit statistico •    S. Donadio et al., SISMEC, Brescia, Italy, 2003 • From HEP computing to medical research and vice versaF. Foppiano et al., ESTRO Congress, Geneva, 2003 • Precise simulation for brachytherapy and technological transfer from HEP to Medical Physics   S. Guatelli et al., ESTRO Congress, Geneva, 2003 • A Toolkit for Statistical Data Analysis   M.G. Pia et al., PHYSTAT 2003 Conference, SLAC, USA, 2003 • HEP software and the GRID: a breakthrough in the fight against cancer   Computing in High Energy Physics, San Diego, CA, 2003 • Precision validation of Geant4 electromagnetic physics  Computing in High Energy Physics, San Diego, CA, 2003 • A toolkit for statistical data comparison   Computing in High Energy Physics, San Diego, CA, 2003 • Round Table on Statistical Methods in HEP   Computing in High Energy Physics, San Diego, CA, 2003 • The Geant4 Simulation Toolkit and its applications to medical and space science   M.G. Pia et al., 8th International Symposium on Simulation Science, Hayama, Japan, 2003 ICRS cancelled in 2004 for lack of money, 3 abstracts accepted

  26. IEEE NSS-MIC • Software & Computing session introduced for the first time into IEEE NSS in 2003 • great success! • Included in the programme in 2004 too • many abstracts received! • Convenors: J. Knobloch and M.G. Pia • IEEE NSS/MIC Short Course on Geant4 • great success in 2003 (46 students) • repeated in 2004 • Organizer: M.G. Pia + instructor S. Guatelli Conference Sponsors:

  27. Training courses • Geant4 Tutorial at Alenia Spazio, Torino, July 2003 (S. Guatelli) • IEEE Geant4 Course, Portland, USA, October 2003 (S. Guatelli, M.G. Pia) • Finnish Geant4 School, Helsinki, November 2003 (M.G. Pia) • Geant4 training at Medical Physics School, Archamps, France, November 2003 (S. Guatelli) • On-site training at CPS Innovation, Nashville, USA, January 2004 (S. Guatelli) • Geant4 Lectures at MCNEG Workshop(Medical Physics UK Association), Teddington, March 2004 (S. Guatelli) • Geant4 Lectures at Scuola Nazionale sul Software, Alghero, 7-11 June 2004 (M.G. Pia) • IEEE Geant4 Course, Roma, October 2004 (S. Guatelli, M.G. Pia) • Invitation to hold a Geant4 Course for Medical Physics at Bombay, India • technology transfer to developing countries

  28. What is INFN support to these activities? Technology transfer • Usual support to several activities in hospitals • in Europe, USA, Canada, Japan • new contacts from Australia and India • New project in progress: simulation of a treatment head for IMRT at Istituto Nazionale per la Ricerca sul Cancro, Genova • Collaboration with Alenia Spazio, Astrium EADS and RxTec for radioprotection/shielding studies for vehicle concepts and surface habitats for astronauts, ESA Aurora Programme • Training to CPS Innovation, Nashville, USA (10 days invited stay), world leader in PET • Wide industrial participation at the Geant4 IEEE Course in Portland

  29. CERN Science Tree World Summit on Information Society Organized by United Nations Geneva, December 2003 Geant4-INFN stand

  30. Geant4 release milestones: LowE E.M. physics • Geant4 release 5.2, June 2003 • all milestones involving G4-INFN met • Geant4 release 6.0, December 2003 • all milestones involving G4-INFN met • Geant4 release 6.1, March 2004 • bug fix release only • Geant4 6.2, 25 June 2004 • Design and code review of Penelope processes: failed, lack of money to do collaborative work • Optimised Bremsstrahlung angular distribution: met (LIP) • Prototype of photoelectric angular distribution: met (LIP) • Precise range (p/ion): failed, lack of money for design iteration • Use new models for fluctuations (p/ion): failed, lack of money for design iteration • PIXE: met, 1st iteration of new model • Geant4 7.0, 17 December 2004 • all the workload of milestones failed added to the original workload planned

  31. Geant4 release milestones: advanced examples • Geant4 release 5.2, June 2003 • all milestones involving G4-INFN met • Geant4 release 6.0, December 2003 • all milestones involving G4-INFN met, • except release of radioprotection advanced example (responsibility of Cosenza, who withdrew from Geant4 Collaboration) • Geant4 6.2, 25 June 2004 • release of new radioprotection, hadrontherapy and medical_linac advanced examples • release of new air_shower (LIP), purging_magnet (Karolinska), space_charging (Imperial College) examples • no design or code review of new examples, because of lack of travel money • releasing examples not subject to peer review is a high risk! • Geant4 7.0, 17 December 2004 • other new examples planned; huge design and code review workload accumulated from previous release

  32. Statistical Toolkit release milestones • CERN-INFN Project • Statistical Toolkit 0.0, March 2003: beta-release • Statistical Toolkit 0.1, May 2003: first public release • Statistical Toolkit 1.0, March 2004: all milestones met (Goodness of Fit of 2 samples) • Financial support from ESA to meet the milestones

  33. Funds from ESA Two fellowships funded by ESA at INFN Genova: • PhD fellowship, through a contract via Alenia Spazio (Susanna Guatelli) • Post-doc fellowship, 4 years (Barbara Mascialino) • More fellowships coming in the future?

  34. LNS • Active contribution to Geant4 physics tests (electromagnetic and hadronic) • Tests: G4 on the GRID • Geant4 rpm for easy installation and running on the GRID • 12 hours on a 800 MHz Pentium III for a single application run • see P. Cirrone’s talk at Siena 2004, 23-26 May 2004 • Insufficient travel money, missed important Monte Carlo workshop in Montreal 3-5 May • in the absence of any Geant4 collaborators, controversial statements about Geant4 correctness were advertised Geant4 precision better than 3% (LowE e.m. + precompound model)

  35. LNGS • Complete re-engineering of Penelope physics models into Geant4 + test • Geant4 physics test • test automation • major production effort at LNGS • Metrics: Ignominy implementation for Geant4, dependency analysis and regular regression testing • Production for physics test and Geant4 Physics Book blocked, necessary design iteration postponed because of lack of travel money • Necessary design iteration of Penelope processes planned for June 2004 release cancelled because of lack of travel money to work with collaborators

  36. Genova • Coordination of all LowE, Advanced Examples, Test&Analysis and Physics Book activities • OOAD and significant development contribution to all the above • Large production requirements • no money to buy production PCs • saturation of INFN-Genova public farm • Insufficient travel money for coordination, OOAD and peer review activities • degradation of the quality of the software product • accumulation of workload • loss of support from the Collaboration

  37. Update to financial requests • This trip to Cagliari = 764 euro • 473 euro flight • 96 euro transport from Cagliari to Hotel S. Elmo • 28 euro taxi (no buses to reach the airport in time for a 6.55am flight) • 167 euro hotel • Consequence of this high cost: reduce the participation of Genova collaborators to Geant4 Workshop in Catania • Request: 764 euro increase of Genova national missions • Rose Licences: one renewed only, not enough money to renew the second one • request a new cheap (Windows, node-lock) licence (~ 2K euro) • MS FrontPage and MS Project licences • new laptop (Dec 2003) useless, because lack of licences for Windows XP

  38. New policy of CERN/EP/SFT • No PCs provided to external Geant4 collaborators from “rich” countries any more • I work on a 400 MHz PC, 128 MB RAM, 10 MB disk space • other Geant4-INFN collaborators do not have even that! • No access to CERN NICE software facilities from external laptops • Funds needed for adequate hardware resources

  39. Next CC meeting • Please inform us timely about the date of CCR meetings requiring our presence • Please invite us, if a Geant4 presentation is required • Please keep in mind that flights purchased with short advance are very expensive • Please consider that there are some already agreed commitments in October 2004, incompatible with an ubiquitous attendance of a CCR meeting: • CHEP, Interlaken • 7 abstracts submitted, many Geant4-INFN members will be there, including MGP • Geant4 Annual Workshop, Catania, 4-9 October 2004 • the whole Geant4 Collaboration will be in Catania, including MGP • IEEE-NSS/MIC, Roma, 17-22 October 2004 • MGP convener of Software & Computing • Geant4 training course

More Related