1 / 24

Concluding remarks

Concluding remarks. Makoto Asai On behalf of the SLAC Geant4 team 03/11/2011 @ ORNL Geant4 tutorial course. Contents. 2011 development plan Collaboration-wide developments Highlights of other developments Following up SLAC Geant4 team. Collaboration-wide developments.

kanan
Download Presentation

Concluding remarks

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Concluding remarks Makoto Asai On behalf of the SLAC Geant4 team 03/11/2011 @ ORNL Geant4 tutorial course

  2. Contents • 2011 development plan • Collaboration-wide developments • Highlights of other developments • Following up • SLAC Geant4 team Concluding remarks

  3. Collaboration-wide developments

  4. 1. Multi-threaded prototype • First prototype release based on v9.4 • Prototype is ready • Documentation/examples underway • Second prototype release based on v9.5 • End of the year / early 2012 • We request users for feedback, in particular on identified bottlenecks. Concluding remarks

  5. 2. Variable density materials • Allows to define a base reference material. • Density of each volume is used to scale the cross-sections at the tracking time • Reduction of number of materials and corresponding cross-section tables • Example for air shower: a user may define one “air” of standard density, and density is defined in the parameterized volumes as “atmosphere layers”. Concluding remarks

  6. 3. Improvement of easiness in physics list • Removal of “magic” ordering numbers in physics list • Automatic consistency check • Current user’s P.L. will be kept valid, but may cause error messages in case of problems • Easiness of adding a process to “pre-packaged” physics list • Documents, examples Concluding remarks

  7. 4. Layered mass geometries in parallel worlds • Parallel geometry may be stacked on top of mass geometry or other parallel world geometry, allowing a user to define more than one worlds with materials (and region/cuts). • Track will see the material of top-layer, if it is null, then one layer beneath. • Alternative way of implementing a complicated geometry Concluding remarks Mass world Parallel world

  8. 4. Layered mass geometries in parallel worlds - continued • A parallel world may be associated only to some limited types of particles. • May allow defining geometries of different details for different particle types • Example for sampling calorimeter: the mass world defines only the crude geometry with averaged material, while a parallel world with all the detailed geometry and real materials is associated with all particle types except e+, e- and gamma. • e+, e- and gamma do not see volume boundaries defined in the parallel world, i.e. their steps won’t be limited Concluding remarks

  9. 5. Enrich event biasing options • Review and unify existing biasing options • Provide minimal statistics tools to monitor the conversion of the simulation results • Systematic documents Concluding remarks

  10. 6. Reorganization of novice and extended examples • Simple novice examples with clear guidance to extended examples for the way of extending each individual functionality • Improving the maintenance of extended examples • New working group was recently formed and Ivana Hrivnacova (IN2P3/IPN Orsay) is the WG coordinator. Concluding remarks

  11. 7. Unifying format of warning/error messages • Addressing requirement from LHCb experiment (seconded by other LHC experiments) • Enables automated detection of warning/error messages embedded in output files of massive production runs. Concluding remarks

  12. Highlights of other developments See also the detailed draft plan: http://cern.ch/geant4/support/planned_features.shtml

  13. Kernel • Implementation of new scheme for GetVelocity() in G4Track • Finalize implementation of precise ComputeSafety() in navigation • Feasibility study and first prototype of a unified library for solids • Review and possible extension of GDML schema for material attributes • Introduction of spherical mesh for command-based scoring Concluding remarks

  14. Standard EM physics • New interface to differential cross sections • Extend G4EmCalculator to provide range computations • Update bremsstrahlung model for e+- for energies E < 1 GeV • Update gamma-conversion model at low-energies • New model of delta-electron production based on ICRU52 data • Hadron multiple scattering coherent with hadron diffuse model • Review of design and implementation of the interface to geometry for treatment of lateral displacement • Implementation of spin precession in magnetic field using Stokes vectors representation Concluding remarks

  15. Low-E EM physics • Complete upgrade to Penelope 2008 • Complete implementation of Livermore polarized photon processes and triple conversion • Prototype of full DNA processes • Alternative models for electrons and ions in liquid water and biological materials • Prototype processes for water radiolysis modeling (as an advanced example) • New microdosimetry processes for Si Concluding remarks

  16. Hadronic physics • Implementation of Propagate() method in Bertini cascade for use with FTF • Accurate cross sections and multiplicities for kaons, p/p-bar and lambda/lambda-bar • Implementation of anti-baryon-nucleus and anti-ion-nucleus interactions in FTF model • Complete interface to ENDL high precision neutron database for low energy neutron models • Addition of coalescence model in cascade stage of Bertini and precompound/evaporation stages • Update of Geant4 ENDSF to 2011 version for radioactive decay Concluding remarks

  17. GUI / Visualization • Run-time selection of UI session • Update DAWN to work on latest versions of Windows • New driver OGLFile, using OpenGL to make PS, EPS, JPG without graphics window • Enable easy visualization of GPS sources • Integrate the Inventor viewers within the QtUI environment Concluding remarks

  18. Following up

  19. http://geant4.slac.stanford.edu/ Following up - 1 • Please keep maintaining your Geant4 installation updated. • Irregular patch releases may be more important than regular releases. • Check our web page regularly to find release news, or register to Geant4 announcement mailing list Concluding remarks

  20. Following up - 2 • If you have a question • Look for our documents. • Users guides, Twiki pages, tips pages, examples and their READMEs • Post your question on Geant4 HyperNews http://hypernews.slac.stanford.edu/HyperNews/geant4/cindex • Please make sure to do a bit of survey that no one has already asked the same question before. • As the final method, write us a mail. • Avoid anonymous mail account such as hotmail, gmail, etc., if possible. • Mention you attended ORNL Geant4 tutorial 2011. • Or, catch us at meetings/conferences. • Apologies if we cannot recognize you… Concluding remarks

  21. Following up - 3 • Near-future events • For space users • Geant4 space users workshop • December 7-9, 2011 @ Tsukuba (Japan) - TBC • For medical users • American Brachytherapy Society meeting • April 14-16 @ San Diego • PTCOG • May 08-14 @ Philadelphia • G4NAMU annual meeting • @AAPM meeting, Jul. 31 - Aug. 04, 2011 @ Vancouver • For general users • Geant4 Technical Forums • IEEE/NSS Conference • October 23-29, 2011 @ Valencia (Spain) Concluding remarks

  22. Past tutorials Concluding remarks

  23. The SLAC Geant4 team • Covers most of the Geant4 categories • Is happy to organize Geant4 tutorial • At SLAC or preferably at your place • Is happy to collaborate with you !!

  24. Thank you for your attendance.Let’s keep in touch.

More Related