23-26 October, 2000 - Lisbon

1
Highlights of
It was a busy month for Geant4!
23-26 October, 2000 - Lisbon
2
150 participants Mostly devoted to hardware
3
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
Sw engineering OO methodology Transparency of
physics
Preequilibrium and Equilibrium Decays in Geant4
V. Lara
Physics theory and phenomenology Results from
validation tests
4
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
Medical applications
6 talks 4 hardware, 2 simulation
5 academic/HEP environment 1 real hospital
practice
role of rigorous sw engineering in medical
applications relevant functionalities new
physics results of general interest

• Effect of voxel size on Monte Carlo dose
  calculations for typical clinical photons and
  electron beams
• P. Grisel Mora

EGS-based effect of voxel size on CPU empirical
tests case-specific results
6
Software Process Improvement
Milestones
Comparison Projects
Training Kit
50 participants
Kernel
Geometry
QA
Electromagnetic Physics
System Testing
WG coordinators TSB CB meetings
Documentation
General Publication
Interactivity Visualisation UI/GUI Analysis
Tools Space Example project
Applications XMM/Chandra results TESLA DNA
radiation damage
and much more...
7
Highlights milestones

• Comparison projects
• same talks as at Calor2000
• ATLAS and BaBar mostly comparisons between
  Geant3 and Geant4, first hints of comparisons
  with data
• ALICE demonstration of usage of parameterised
  hadronic models
• details to be understood (in experimental data,
  in user code, in Geant4?)
• most advanced unofficial project is
  Brachytherapy at IST-Genova
• Training Kit
• lot of private existing material
• the workshop Training Project triggered a
  collaboration-wide effort
• Software process improvement
• results of the assessment on Design
• recommendations for improvement
• QA

8
Highlights interactivity

• Topic of great interest for user communities
• Visualisation
• UI/GUI
• Analysis Tools
• Presentations hands-on activity
• Space Example Project
• equipping a real-life Geant4-based application
  with advanced visualisation, UI/GUI and analysis
  facilities
• focus for discussions on facilities
• playground to identify requirements, test
  applications etc.
• Geant4 AIDA Lizard (JAS, OpenScientist)
• will be released with Geant4 3.0 next month
• Thanks Andreas!

9
300 participants EGS - MCNP dominated HEP was
absent

• medical
• nuclear reactors
• radiation protection, shielding

Introductory and summary plenary sessions 10 e -
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
The zoo
NMTC HERMES FLUKA EA-MC DPM SCALE GEM MF3D
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 RTST-2000
...and I probably forgot some more
Many codes not publicly distributed A lot of
business around MC
11
A flavour of the talks

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

12
Highlights e.m. general codes 1
release Fall 2001 Fortran, C, C users wont
need to do any programming from conception
through production to publication anybody can run
applications without reading a manual
EGS5
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
Highlights e.m. general codes 2
Tripoli4
F77, C, C n, e, g validated through comparisons
to MCNP and Penelope
EGSnrc
New EGS4 version
e, g Specialised in the low energy domain
Penelope
MARS
Used at Fermilab for accelerator studies
14
Lot of interest in Geant4!
15
Interesting features...

• Same person
• member of the International Advisory Committee
• member of the Scientific Program Committee
• 1 plenary talk
• 3 parallel EG talks
• 1 tutorial
• chaired 1 EG sessions
• ...and there were several other similar cases!

Workaholics...
Fortran, Fortran, Fortran, Fortran, Fortran,
Fortran, Fortran, Fortran, Fortran...
Lots of comparisons between MC codes (no data...)
Epistemology
Software engineering what is?
Questions
Geant? Im envious!
Memorable quotes
20th century was the century of physics, 21st
century is the century of biology!
Invited plenary talk
What Monte Carlo represents for the USA