1. The Advanced Example Working Group
2nd Low Energy Working Group Meeting CERN, July 21, 2008
The Advanced Example Working Group
G.A.P. Cirrone, PhD
INFN-LNS
on behalf of the AE WG
venerdì 23 novembre 2018
G.A.P. Cirrone PhD, Laboratori Nazionali del Sud CATANIA

2. Connection with other WG Dissemination Interaction with the Users
Mission
Members
Examples
Which physic?
How to test the example?
Connection with other WG
Dissemination
Interaction with the Users
Future examples …
venerdì 23 novembre 2018
G.A.P. Cirrone PhD, Laboratori Nazionali del Sud CATANIA

3. WHY THE ADVANCED EXAMPLE WORKING GROUP?
Investigate, evaluate and demonstrate Geant4 capabilities in various experimental environments
Provide guidance to Geant4 users in realistic experimental applications
Provide feedback to Geant4 developers about successful results, problems etc.
Identify requirements for further Geant4 improvements and extensions to address new experimental domains
Provide connection between developers and users of GEANT4
venerdì 23 novembre 2018
G.A.P. Cirrone PhD, Laboratori Nazionali del Sud CATANIA

4. ELECTION UPDATES
Working group coordinator and a co-coordinator: G.A.P. Cirrone – INFN/LNS and
S. Incerti – IN2P3/CENBG
19 members belong to this working group
20 examples actually maintained
venerdì 23 novembre 2018
G.A.P. Cirrone PhD, Laboratori Nazionali del Sud CATANIA

5. ELECTION UPDATES
Among these members were cancelled from the collaboration but they still want to contribute: we asked to the the SB to approve their return in the Geant4 collaboration : S. Guatelli, B.Mascialino, M. Piergentili.
Guatelli wishes to contribute to Brachytherapy, Humanphantom, Radioprotection and Hadrontherapy examples.
Piergentili is disposal to give a small contribute to the Med_Linac
example.
B. Mascialino wishes to give a contribute in hadrontherapy.
Araujo Henrique wrote an stating he is not more disposal to contribute to the Group.
For this the example cosmicray_charging is at the moment without a responsible
Bernardo Tome wrote that he is still disposal to contribute to the air_shower example with a small FTE
venerdì 23 novembre 2018
G.A.P. Cirrone PhD, Laboratori Nazionali del Sud CATANIA

6. ELECTION UPDATES Member list, July 2008 1 Stephane Chauvie 10
INFN, Torino, Italy 10
Alfonso Mantero
INFN/Genova, Italy 2
G.A.Pablo Cirrone
INFN-LNS, Italy 11
Barbara Mascialino
Karolinska Institute, Sweden 3
Gabriele Cosmo
CERN, Switzerland 12
Luciano Pandola
INFN/LNGS, GNO, Italy 4
Giacomo Cuttone
INFN/LNS, Italy 13
Andreas Pfeiffer
CERN 5
Francesco Di Rosa 14
M.Grazia Pia
INFN, Italy 6
Susanna Guatelli
ANSTO, Australia 15
Michela Piergentili
University of Genova, Italy 7
Alexander Howard 16
Alberto Ribon 8
Sebastien Incerti
CNRS/IN2P3/CENBG, France 17
Giorgio Russo 9
Francesco Longo
INFN/TriesteItaly 18
Giovanni Santin
ESA/ESTEC, The Netherlands 19
Bernardo Tome
LIP, Portugal
venerdì 23 novembre 2018
G.A.P. Cirrone PhD, Laboratori Nazionali del Sud CATANIA

7. WEB SITE AND MAILING LIST
o A new Advanced Example web page have been created and it is hosted at CERN in the official Geant4 web pages:
From this page a link to a more detailed page have been fixed:
o Links to the old web site still remain in the Geant4 documentation. Katsuya was already contacted order to changes the old link with new links that will point on the new CERN based pages. The update is expected in the December release
o The ownership of mailing list was transferred to G.A.P.Cirrone and S.Incerti.
It was updated with the current members.
venerdì 23 novembre 2018
G.A.P. Cirrone PhD, Laboratori Nazionali del Sud CATANIA

8. ADVANCED EXAMPLES WIKI PAGES
venerdì 23 novembre 2018
G.A.P. Cirrone PhD, Laboratori Nazionali del Sud CATANIA

9. EXAMPLE STATUS Status of the examples
At moment 20 examples are published inside Geant4.
We prepared a web page were the general status of the example (in terms of compilation and/or run errors with the last Geant4 version) is reported.
The page is linked also from the official CERN web page so that users can better understand the status of the examples.
Responsible of each example showing errors will be directly contacted by-
Analisys
We plan to face out one of the users’ most request issue: a simpler and clear way to extract output from the examples
(explain how to use ROOT without AIDA, ASCII data format…..)
Progress on this will be discussed and reported in the next months.
venerdì 23 novembre 2018
G.A.P. Cirrone PhD, Laboratori Nazionali del Sud CATANIA

10. WHAT CHANCE EXAMPLE CAN PROVIDE?
Wide experimental coverage:
HEP
Space science/astrophysics
Medical physics
Radiobiology
Detector technologies
Wide Geant4 coverage
Geometry features
Magnetic field
Physics (EM and hadronic)
Biological processes
Hits & Digis
Analysis
Visualisation, UI
venerdì 23 novembre 2018
G.A.P. Cirrone PhD, Laboratori Nazionali del Sud CATANIA

11. WHAT PHYSIC EXAMPLE CAN PROVIDE?
Brachytherapy
LowE EM for e, g
Cosmicray_charging
LISA (space charging)
Gammaray_telescope
Standard EM physics
Hadrontherapy
Optimised EM/hadronic for p up to ~100 MeV
Radiation_monitor
Effects on components
Radioprotection
GCR and SPE environments
Underground physics
LowE EM processes, radioactive decay, neutrons
Xray_fluorescence
Fluorescence, Auger electrons
Xray_telescope
XMM-Newton/Chandra like
Microbeam
Simulation of a cellular irradiation microbeam line using a high resolution cellular phantom
Microdosimetry
Simulation of a track structure in liquid water using the Geant4 DNA very low energy processes
Nanobeam
Simulation of a nanobeam line facility
venerdì 23 novembre 2018
G.A.P. Cirrone PhD, Laboratori Nazionali del Sud CATANIA

12. ACTUAL SITUATION OF THE EXAMPLE PHYSIC
Physics Lists in Advanced Examples
ACTUAL SITUATION OF THE EXAMPLE PHYSIC
PhysicsLists
Ad hoc in most examples: transparent, easy to understand but it is safe?
A couple of examples use pre-packaged Geant4 PhysicsLists
Goal: document quantitatively the validation of the physics selections of all advanced examples
Objectively supported physics options were preferred to the “educated guess” PhysicsLists
Future:
Validation studies of processes/models used
Validation studies with “ad hoc” experimental data
Encourage the introduction of the physic lists providing users a set of optimal option
venerdì 23 novembre 2018
G.A.P. Cirrone PhD, Laboratori Nazionali del Sud CATANIA

13. HOW ARE EXAMPLE TESTED ?
Actually only few examples are inside the system testing procedure of Geant4
test1002 = examples/advanced/microbeam test1004  = examples/advanced/nanobeam test1008  = examples/advanced/cosmicray_charging/
test???? = examples/advanced/microdosimetry
We would like to expand this subset at least including the more significative examples (in terms of geometry, physic, etc) if, of course, developers agree…..
We will discuss this with the System Testing responsible in the next months providing a concrete proposal
To encourage the developers to create home-made ‘test suite’ in order to keep under control main parameters of the code after each release
venerdì 23 novembre 2018
G.A.P. Cirrone PhD, Laboratori Nazionali del Sud CATANIA

14. OTHER CONSIDERATIONS
Cooperation with the other working group is fundamental and must be improved
Dissemination of ‘real case’ experiment can improve the confidence of the Users with Geant4
AE (and example in general of course) represent an important line of contact between Users and the Collaboration
venerdì 23 novembre 2018
G.A.P. Cirrone PhD, Laboratori Nazionali del Sud CATANIA

15. FUTURE…..
A big improvement of the Medical Linac example is expected in the next year
The possibility to develop an example reproducing a Compute Tomography system is under discussion with the Tourin Group of the Italian Geant4 Collaboration
The possibility to introduce new examples related to new external radiotherapy modalities is under discussion (Gamma Knife and IORT)
venerdì 23 novembre 2018
G.A.P. Cirrone PhD, Laboratori Nazionali del Sud CATANIA

16. Thank you for your attention
venerdì 23 novembre 2018
G.A.P. Cirrone PhD, Laboratori Nazionali del Sud CATANIA