Geant4 Activities in Japan

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Geant4 Activities in Japan Some news
fromTakashi Sasaki,Koichi Murakami,Akinori
Kimuraand colleagues
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Software Structure for Particle Therapy
Simulation
PTSgeom/
PhysicsList etc.
include/ src/
sources/
Predefined Physics Lists for validation -
Ionisation - MSC - Hadron Elastic - Hadron
Inelastic
demo/
G4Mmodules/
G4Mscoring/
data/
Scatter
Double Scatter
HIBMCgantry/
HIBMC/
common/
NCC/
UCSF/
Ridge filter
Propeller blade
macros/
- Geant4 Scoring Package - Output to gMocren -
Output to ROOT files
NCCgantry/
beam/
scatter/
common/
HIBMC/
NCC/
UCSF/
material/
Wobbler Magnets
Collimator
dicom/
ridge/
phys.mac
range.mac
Material information is read from ASCII
files. Also NIST defined materials available.
IHIport/
monitor/
materials.mac
bragg.mac
Ionization Chamber
Wire Chamber
vis.mac
System parameters are read from ASCII files.
G4Mdicom/
UCSFETF/
Multi-leaf collimator
Water phantom
Interface with DICOM/DICOM-RT - Voxelization
- CT value Material - CT value -Density -
System parameters
NIRS/IHI
HIBMC
NCC-East
Bolus
DICOM data
etc.
UC San Francisco Eye Treatment Facility
- A collection of basic component as a class
library - Dynamic configuration w/ Geant4 macro
files
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Validation Activities
for Proton Therapy
Beam Delivery system validation
Material Properties
Lead Scatterer
Proton range
Wobbler Magnet
?NIST PSTAR ?Simulation
Wobbler demonstration Spiral Wobbling
Uniform Irradiation Field
Stopping Power/Range , checked with NIST data
Depth-Dose distribution
Nuclear Interaction Effect
IEEE TNS V52,Issue4,(2005)pp.896-901
( with Wobbler and Scatter )
by T.Akagi (HIBMC)
? Simulation Measurement
(with Wobbler, Scatter, and Ridge filter)
50mm depth
250mm depth
? Measurements - TPS calculations ? G4
(histograms)
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also for Carbon Therapy
NIRS / IHI experimental beam line
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http//geant4.kek.jp/gMocren/
gMocren A Visualization Tool
gMocren and utility softwares are freely
available.
Opacity curve and color map editor
3D (ray casting)
2D (MPR)
Supported system - Windows 2k/XP or PC Linux
OS - Pentium 4 or faster - more than 1 GB
(recommend)
free hand or templates with WWWL editing
Particle trajectories
Calculated dose distribution
Opacity curve and color map editor
Functionality Requirements
color mapping

• To visualize
• - the modality image used by the simulation,
• - the calculated dose distribution and
• - the particle trajectories
• - in an agreeable speed
• Transfer function editor
• Multi-platform

Trajectory information in the simulation is
available.
contour plot
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GRID Deployment and Web UI Interface

• Resource Broker
• Inquiry resource information
• Job queuing and logging

• Grid access via HTTP
• Job submission, management, monitoring
• Get and browse results

Grid Web UI
Firewall

• Virtual Organization
• Based on GSI
• Across the institutes

Globus I/F
Globus I/F
Globus I/F
Site-A
Site-B
Site-C
WMS
WMS
WMS

• File Catalogue
• Independent of physical location of files
• Replication and transfer automatically

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