1. Maria Grazia Pia, CERN/IT and INFN Genova 23-26 October, 2000 - Lisbon 9-14 October, 2000 - Annecy 16-20 October, 2000 - Orsay It was a busy month for Geant4! Highlights of

2. Maria Grazia Pia, CERN/IT and INFN Genova ~150 participants Mostly devoted to hardware Tutorials Physics processes in electromagnetic showers (M. Maire) Physics processes in hadronic showers (A. Ferrari) Calorimeter techniques (R. Wigmans) Jets/Et miss reconstruction Medical applications New techniques Scintillation calorimetry Simulation Perspective talks Sessions Bolometry Cerenkov calorimetry Crystal calorimetry Electronics Ionization calorimetry

3. Maria Grazia Pia, CERN/IT and INFN Genova Simulation 1: Modeling Convener: J.-P. Wellisch Geant4 only... No talks on electromagnetic physics! Methodology of Physics Simulation Software J. Apostolakis, S. Giani Object oriented design and implementation of an intra-nuclear transport model L. Bellagamba, A. Brunengo, E. Di Salvo, M.G. Pia Preequilibrium and Equilibrium Decays in Geant4 V. Lara Sw engineering OO methodology Transparency of physics Physics theory and phenomenology Results from validation tests

4. Maria Grazia Pia, CERN/IT and INFN Genova Simulation 2: Applications Convener: J.-P. Wellisch ] Comparison of Testbeam Data of the ATLAS HEC D. Salihagic ] Comparison of GEANT4 simulation of CMS ECAL testbeam experiments M. Liedl ] Geant4 for the ATLAS electromagnetic calorimeter K. Kordas ] Comparison of Experimental Electron Signals with GEANT3 and GEANT4 Simulations for the ATLAS Forward Calorimeter Prototype R. Mazini ] Tuning of Hadron Calorimeter in GEANT4 using testbeam data S. Banerjee

5. Maria Grazia Pia, CERN/IT and INFN Genova Medical applications Effect of voxel size on Monte Carlo dose calculations for typical clinical photons and electron beams P. Grisel Mora 5 academic/HEP environment 1 real hospital practice role of rigorous sw engineering in medical applications relevant functionalities new physics results of general interest EGS-based effect of voxel size on CPU empirical tests case-specific results 6 talks: 4 hardware, 2 simulation

6. Maria Grazia Pia, CERN/IT and INFN Genova Comparison Projects Interactivity Visualisation UI/GUI Analysis Tools Space Example project Training Kit Software Process Improvement General Publication System Testing QA Electromagnetic Physics Documentation Applications XMM/Chandra results TESLA DNA radiation damage Geometry Milestones and much more... Kernel WG coordinators TSB CB meetings ~50 participants

7. Maria Grazia Pia, CERN/IT and INFN Genova Highlights: milestones  Comparison projects l ~same talks as at Calor2000 l ATLAS and BaBar: mostly comparisons between Geant3 and Geant4, first hints of comparisons with data l ALICE: demonstration of usage of parameterised hadronic models l details to be understood (in experimental data, in user code, in Geant4?) l most advanced [unofficial] project is Brachytherapy at IST-Genova ] Training Kit l lot of “private” existing material l the workshop Training Project triggered a collaboration-wide effort ] Software process improvement l results of the assessment on Design l recommendations for improvement l QA

8. Maria Grazia Pia, CERN/IT and INFN Genova Highlights: interactivity ] Topic of great interest for user communities l Visualisation l UI/GUI l Analysis Tools ] Presentations + hands-on activity  “Space Example” Project equipping a real-life Geant4-based application with advanced visualisation, UI/GUI and analysis facilities l focus for discussions on facilities l playground to identify requirements, test applications etc. l Geant4 + AIDA + Lizard (+JAS, + OpenScientist) l will be released with Geant4 3.0 next month Thanks Andreas!

9. Maria Grazia Pia, CERN/IT and INFN Genova ~300 participants EGS - MCNP dominated HEP was absent medical nuclear reactors radiation protection, shielding large non-HEP user community most had never heard of Geant Introductory and summary plenary sessions 10e - g sessions (most crowded, ~ 2/3 conference participants) 8 n - g sessions 7 hadron sessions Poster sessions Tutorials: e - g, n - g and hadron

10. Maria Grazia Pia, CERN/IT and INFN Genova EGS4, EGS5, EGSnrc MCNP, MCNPX, A3MCNP, MCNP-DSP, MCNP4B Penelope Geant3, Geant4 Tripoli-3, Tripoli-3 A, Tripoli-4 Peregrine MVP, MVP-BURN MARS MCU MORSE TRAX MONK MCBEND VMC++ LAHET RTS&T-2000 NMTC HERMES FLUKA EA-MC DPM SCALE GEM MF3D...and I probably forgot some more Many codes not publicly distributed A lot of business around MC The zoo

11. Maria Grazia Pia, CERN/IT and INFN Genova A flavour of the talks n Monte Carlo Simulation of mammography X-ray units: a comparison between different electron extensions of the EGS4 code system n Water cross section sensitivity in the Naiade benchmark using Tripoli-4 n Is the Spencer-Attix cavity equation applicable for solid state detectors irradiated in megavoltage electron beam? n MCNP calculations for the shielding design of a beam tube to be installed at the Portuguese Research reactor n Monte Carlo determination of the radiation field in the thermal column of the Portuguese Research reactor n Monte Carlo modelling of the Belgian materials testing reactor BR2 n KENO3D Visualization Tool for KENO V.a and KENO VI n Energy spectra and dose distributions of a medical linear accelerator simulated with BEAM/EGS4 and MCNP n Coupling MCNP-DSP and LAHET Monte Carlo codes for designing subcriticality monitors for accelerator driven systems

12. Maria Grazia Pia, CERN/IT and INFN Genova Highlights: e.m. general codes 1 EGS5 release: Fall 2001 Fortran, C, C++ users won’t need to do any programming from conception through production to publication anybody can run applications without reading a manual FLUKA e.m. it stimulated new activity in the field, since for years there have been only ITS and EGS, that were frozen the source will be available in ~1 year thanks to NASA funds

13. Maria Grazia Pia, CERN/IT and INFN Genova Highlights: e.m. general codes 2 Tripoli4 EGSnrc Penelope F77, C, C++ n, e, g validated through comparisons to MCNP and Penelope New EGS4 version e, g Specialised in the low energy domain MARS Used at Fermilab for accelerator studies

14. Maria Grazia Pia, CERN/IT and INFN Genova Fast Simulation of X-ray Transition Radiation in the Geant4 Toolkit (V. Grichine) Multiple scattering in Geant4 (P. Arce et al.) On hadronic models in Geant4 (J.-P. Wellisch) + isotope prod. tutorial OO approach to pre-equilibrium and equilibrium decays in Geant4 (V. Lara) Generic design of physics processes in Geant4 (M. Asai) Lot of interest in Geant4!

15. Maria Grazia Pia, CERN/IT and INFN Genova Interesting features... Same person l member of the International Advisory Committee l member of the Scientific Program Committee l 1 plenary talk l 3 parallel EG talks l 1 tutorial l chaired 1 EG sessions...and there were several other similar cases! Workaholics... EG invited talks: Geant4 15’ Fluka 15’ Tripoli 15’ Penelope 15’ EGS5 15’ EGSnrc 15’ Balance Lots of comparisons between MC codes (no data...) Software engineering: what is? Fortran, Fortran, Fortran, Fortran, Fortran, Fortran, Fortran, Fortran, Fortran... Geant? I’m envious! 20th century was the century of physics, 21st century is the century of biology! Memorable quotes Epistemology Questions Invited plenary talk What Monte Carlo represents for the USA