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Geant4 Activities in Japan

Geant4 Activities in Japan Some news from Takashi Sasaki, Koichi Murakami, Akinori Kimura and colleagues. Software Structure for Particle Therapy Simulation. PTSgeom /. PhysicsList etc. include/ src/. sources/. Predefined Physics Lists for validation - Ionisation - MSC

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Geant4 Activities in Japan

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  1. Geant4 Activities in Japan Some news fromTakashi Sasaki,Koichi Murakami,Akinori Kimuraand colleagues

  2. 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/ NCC/ UCSF/ common/ 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

  3. Edges of Multi-Leaf Collimator Bragg Peak beam MLC Water phantom Spread Out Bragg Peak (SOBP) Validation Activities for Proton Therapy Beam Delivery system validation Material Properties Lead Scatterer Proton range Wobbler Magnet ー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)

  4. also for Carbon Therapy NIRS / IHI experimental beam line

  5. gMocren : A Visualization Tool http://geant4.kek.jp/gMocren/ gMocren and utility softwares are freely available. 3D (ray casting) 2D (MPR) Opacity curve and color map editor Supported system : - Windows 2k/XP or PC Linux OS - Pentium 4 or faster - more than 1 GB (recommend) free hand or templates with WW&WL 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

  6. 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 Resource Broker Grid Web UI Network Server Task Queue Match Maker Information Supermarket Firewall • Virtual Organization • Based on GSI • Across the institutes Job Submission Site-A Site-B Site-C Globus I/F Globus I/F Globus I/F WMS WMS WMS • File Catalogue • Independent of physical location of files • Replication and transfer automatically WN WN WN WN WN WN WN WN WN SE SE SE WN WN WN WN WN WN WN WN WN

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