Advanced examples are Users applications that simulate a specific - - PowerPoint PPT Presentation

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• F. Romano
• n behalf of the Advanced Examples Working Group

INFN - Laboratori Nazionali del Sud, Catania, Italy

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Wide experimental coverage:

• HEP (15%)
• Space science/astrophysics (20%)
• Medical physics and radiobiology (40%)
• Detector technologies and others (25%)

Wide Geant4 coverage

• Geometry features
• Magnetic field
• Physics (EM and hadronic)
• Biological processes
• Hits & Digits
• Analysis
• Visualisation, UI

Advanced examples are Users’ applications that simulate a specific experimental setup

• Investigate, evaluate and

demonstrate Geant4 capabilities in various experimental environments

• Provide guidance to

Geant4 users in realistic experimental applications

• Provide connection

between developers and users of GEANT4

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coordinator:

• L. Pandola (INFN-LNS)

deputy:

• F. Romano (INFN-LNS)
• 19 members
• 21 examples (3 less than the last release)

Migration of all the example pages on CERN Twiki done at the end of 2014 http://geant4advancedexampleswg.wikispaces.com/

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https://twiki.cern.ch/twiki/bin/view/Geant4/AdvancedExamples

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Example Responsible Description

air_shower

• T. Bernardo

Detection system for cosmic ray shower simulation

ams_Ecal M.Maire

Simulation of an Electromagnetic calorimeter

brachytherapy S.Guatelli

Dosimetry for endocavitary, interstitial and superficial brachytherapy

composite_calori meter A.Dotti

A composite electromagnetic and hadronic calorimeter

ChargeExchange MC

• A. Radkov

Simulation of charge exchange real experiment performed at the Petesburg Nuclear Physics Institute (PNPI, Russia)

dnageometry

• C. Villagrasa

Simplified geometrical model of the DNA molecule.

dnaphysics S, Incerti

Simulation of a track structure in liquid water using the Geant4 DNA very low energy processes

eRosita M.G.Pia, et el.

PIXE simulation with Geant4

gammaknife

• F. Romano

A device for Stereotactic Radiosurgery with Co60 sources for treatment of cerebral diseases

gammaray_teles cope F.Longo

A simplified typical gamma-ray telescope (such as GLAST), with advanced description of the detector response

hadrontherapy G.A.P.Cirrone, F. Romano

Simulation of a transport beam line for proton and ion therapy

human_phantom S. Guatelli

Internal dosimetry

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Example Responsible Description Iort_therapy G.Russo

Simulation of a IORT device

lAr_Calorimeter A.Dotti

Simulation of the Forward Liquid Argon Calorimeter of the ATLAS Detector at LHC

medical_linac C.Andenna, et al.

A typical LINAC accelerator for IMRT,

microbeam S.Incerti

Simulation of a cellular irradiation microbeam line using a high resolution cellular phantom

microdosimetry S.Incerti

Simulation of a track structure in liquid water using the Geant4 DNA very low energy processes

microelectronics

• M. Raine

Simulation of tracks of few MeV protons in silicon

nanobeam S.Incerti

Simulation of a nanobeam line facility

purging_magnet J.Apostolakis

Electrons travelling through the magnetic field of a strong purging magnet in a radiotherapy treatment head

radioprotection S.Guatelli, J. Davis

Microdosimetry with diamonds and silicum detectors for radioprotection in space missions

underground_phy sics A.Howard

A simplified typical dark matter detector (such as the Boulby Mine experiment)

xray_fluerescence A.Mantero

Elemental composition of material samples through X- ray fluorescence spectra

xray_telescope G.Santin

A simplified typical X-ray telescope (such as XMM- Newton or Chandra)

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• General maintenance and cleaning of obsolete methods
• Migration to g4tools and MT
• Bug fixes on:
• ChargeExchangeMC
• Microelectronics
• hadronterapy
• Microbeam
• radioprotection
• Recent new developments:
• Hadrontherapy
• Human_phantom

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Authors: G.A.P. Cirrone, F. Romano et al., INFN-LNS

• Simulation of the whole ELIMED (ELI-beamlines MEDical applications) beamline completed
• Simulations of the beam transport systems carried out (quadrupoles and energy selector):
• Magnetic elements simulated and tested (geometry and field for tracking)
• Grid map for magnetic fields implementation (benchmark with reference analytical

transport codes)

• Simulation outputs compared with experimental data
• Simulation of the dosimetric system prototypes carried out
• Faraday cup fully simulated (electric field implemented and tested)

Towards a general-purpose example on laser-driven beams…?

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10 Pa#ent ¡ case ¡

Dose ¡difference ¡(%) ¡between ¡Geant4 ¡human_phantom ¡ ¡ simula#on ¡and ¡the ¡par##on ¡model ¡

Tumour ¡ Normal ¡ Whole ¡ 1 ¡

• ­‑3.60 ¡

30.07 ¡

• ­‑0.64 ¡

3 ¡

• ­‑7.03 ¡
• ­‑0.02 ¡
• ­‑2.74 ¡

4 ¡

• ­‑3.69 ¡

6.96 ¡

• ­‑1.13 ¡

5 ¡

• ­‑3.02 ¡

2.90 ¡

• ­‑1.64 ¡

6 ¡

• ­‑5.62 ¡

11.61 ¡

• ­‑1.29 ¡

7 ¡

• ­‑3.98 ¡
• ­‑0.17 ¡
• ­‑2.23 ¡

8 ¡

• ­‑3.82 ¡

31.43 ¡

• ­‑0.51 ¡

9 ¡

• ­‑7.01 ¡
• ­‑1.08 ¡
• ­‑3.20 ¡

10 ¡

• ­‑3.23 ¡

39.16 ¡

• ­‑0.39 ¡

11 ¡

• ­‑3.72 ¡

8.54 ¡

• ­‑1.29 ¡

12 ¡

• ­‑2.30 ¡

10.36 ¡ 1.15 ¡ 13 ¡

• ­‑3.69 ¡

4.61 ¡

• ­‑1.38 ¡

14 ¡

• ­‑5.43 ¡

31.67 ¡

• ­‑0.46 ¡

Work by:

• S. Guatelli

(CMRP, UOW)

• A. Malaroda

(CMRP, UOW)

• N. Hashikin, C. H. Yeong

(Department of Biomedical Imaging and University of Malaya Research Imaging Centre, Faculty of Medicine, Kuala Lumpur, Malaysia)

• Check of organ sizes and positions
• Geometry bugs verification
• Dose verification in organs (Y-90)
• Good agreement with partition model

(Ho et al, Eur J Nucl Med (1996))

• Towards extension to nuclear medicine

Slide by S. Guatelli

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air_shower Iort_therapy ams_Ecal lAr_Calorimeter brachytherapy medical_linac composite_calorimeter microbeam ChargeExchangeMC microdosimetry dnaphysics nanobeam eRosita purging_magnet gammaknife radioprotection gammaray_telescope underground_physics hadrontherapy xray_fluerescence human_phantom xray_telescope Dnageometry microelectronics

• 75% of examples migrated (50% was in 2013)

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air_shower Iort_therapy ams_Ecal lAr_Calorimeter brachytherapy medical_linac composite_calorimeter microbeam ChargeExchangeMC nanobeam eRosita purging_magnet gammaknife radioprotection gammaray_telescope underground_physics hadrontherapy xray_fluerescence human_phantom xray_telescope microelectronics

• 80% of examples migrated
• few of the remaining have to be migrated

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air_shower Iort_therapy ams_Ecal lAr_Calorimeter brachytherapy medical_linac composite_calorimeter microbeam ChargeExchangeMC microdosimetry dnaphysics nanobeam eRosita purging_magnet gammaknife radioprotection gammaray_telescope underground_physics hadrontherapy xray_fluerescence human_phantom xray_telescope dnageomtery microelectronics

• 70% migrated (40% was in 2013)

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air_shower Iort_therapy ams_Ecal lAr_Calorimeter brachytherapy medical_linac composite_calorimeter microbeam ChargeExchangeMC nanobeam eRosita purging_magnet gammaknife radioprotection gammaray_telescope underground_physics hadrontherapy xray_fluerescence human_phantom xray_telescope microelectronics

• 75% migrated
• A few still remaining

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• Maintenance and bug fix
• General code cleaning of examples
• Migration of examples to Geant4-MT and G4tools
• Upgrade of human_phantom (extension to nuclear medicine)

(in progress)

• Validation and implementation in hadrontherapy of the LTE/RBE

modelling derived by experimental measurements

(data on RBE for pristine and SOBP protons acquired)

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