Concluding remarks. Makoto Asai (SLAC SD/EPP) April 19th, 2015 Geant4 MC2015

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1 Concluding remarks Makoto Asai (SLAC SD/EPP) April 19th, 2015 Geant4 MC2015

2 Contents The SLAC Geant4 team sincerely hope you could enjoy our workshop and you found it informa=ve and useful. Let me add a few more slides for Following up Geant4 the Future Introducing the SLAC Geant4 Team Closing Remarks - M. Asai (SLAC) 2

Following up - 1 http://geant4.slac.stanford.edu/ Please keep maintaining your Geant4 installation updated.

3 Following up 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. 3

4 Following up - 2 If you have a question 1. Look for our documents. Users guides, Twiki pages, tips pages, examples and their READMEs 2. Post your question on Geant4 HyperNews Please make sure to do a bit of survey that no one has already asked the same question before. 3. As the final method, write us a mail. Avoid anonymous mail account such as hotmail, gmail, etc., if possible. 4. Or, catch us at meetings/conferences. 4

5 Geant4 the Future

Geant4 Version 10 Series Major release Geant4 version 10.

There are several highlighted features including Mul=threading capability with event

transport with a new concept of crystal Version 10.

2 is scheduled on December 4 th, 2015 G4MT prototype- 9.4 (2011) G4MT prototype- 9.

6 Geant4 Version 10 Series Major release Geant4 version 10.0 was released on December 6 th, The first major release since June There are several highlighted features including Mul=threading capability with event parallelism Isomer produc=on Enhancements in biasing op=ons Introduc=on of phonon transport with a new concept of crystal Version 10.1 released on December 5 th, 2014 has lots of improvements in both physics and compu=ng aspects. Current version : patch01 released on April 1 st, 2015 Release of version 10.2 is scheduled on December 4 th, 2015 G4MT prototype- 9.4 (2011) G4MT prototype- 9.5 (2012) G (2013) G (2014) G4 10 series (2015~) Proof of principle Identify objects to be shared First testing MT code integrated into G4 Production ready Public release Memory reduction First optimizations Further refinements Closing Remarks - M. Asai (SLAC) 6

7 Next to come what s new in version 10.2 Version 10.2 is scheduled on December 4 th, Version 10.2 will have some C++11- na=ve code. All users are requested to use latest compilers that support C++11. gcc or higher, clang- 3.5 or higher, icc- 15 or higher, Visual- C++ 14 (Visual Studio 2015) No need to change user s code. Previous versions of v10.0 and v10.1 will be kept maintained with C++98 standards. Version 10.1 is the last version that runs on C++98. All the planned developments of 2015 are found on the collabora=on web page. Highlights More APIs for integra=ng mul=threading and MPI for easier use at HPC Parameterized volumes with solid- type parameteriza=on in MT mode New biasing op=ons, e.g. DXTRAN- like biasing, material/isotope biasing, Woodcock tracking Dedicated visualiza=on thread for real- =me event display in MT mode New file- based visualiza=on driver for batch mode Further physics and compu=ng performance improvements Closing Remarks - M. Asai (SLAC) 7

8 Longer- term strategy Geant4 version 10 series will be maintained and refined for at least several years. Experiments want stable API. We stayed on version 9 series for 7 years, requested by (mainly) LHC experiments. Refinements for befer compu=ng and physics performances Without forcing major API changes Refinements based on user s feedbacks Experiments need some =me to migrate to version 10, in par=cular upgrading their frameworks to mul=threading. New/improved physics Extensions of high- energy hadronic models for higher energy region Extensions of phonon physics Chemical DNA processes Next genera=on? Collabora=on members are engaged to several exploratory projects. Some promising/interes=ng/useful results and lessons have already been obtained. Some are also working closely with cuhng- edge companies such as Intel and Nvidia. Collabora=on will organize and also par=cipate to open forums to host/promote/contribute discussions and informa=on exchanges. Closing Remarks - M. Asai (SLAC) 8

9 SLAC Geant4 Team Closing Remarks - M. Asai (SLAC) 9

10 SLAC Geant4 team SLAC Geant4 team is ac=vely involving to the interna=onal Geant4 collabora=on. Geant4 Kernel, hadronic physics, visualiza=on and many other categories Compu=ng and physics performance monitoring & improvements SLAC Geant4 team is extending Geant4 to meet the domes=c needs. Channeling effect in atomic lahce Phonon transport in cryogenic crystal Neutrino physics SLAC Geant4 team is suppor=ng Geant4 users of all applica=on domains in US and beyond Offering the best- of- the- world exper=se on Geant4 Most ac=vely organize Geant4 tutorial courses SLAC Geant4 team is collabora=ng with users Single molecule irradia=on Thermal mo=on of atoms in vacuum cryostat Electron / hole transport in semiconductor Ac=va=on Radia=on therapy Closing Remarks - M. Asai (SLAC) 10

11 Sonware quality assurance (hfp://code.google.com/p/gooda/) SLAC is working with Google on performance measurements of Geant4- based applica=on using Gooda tool, a PMU- based event data analysis package. Closing Remarks - M. Asai (SLAC) 11

This study will be extended for T- 513 experiment at SLAC LCLS ESTB 3. 1.

12 Bent crystal as a collimator Bent crystal can be used as a collimator to deflect par=cles of beam halo. This study will be extended for T- 513 experiment at SLAC LCLS ESTB Channeled Not channeled 2. Enrico Bagli (INFN/Ferrara and SLAC) Closing Remarks - M. Asai (SLAC) W. Scandale et al., Phys. Lef. B 680 (2009)

13 Condensed Matter Physics in Geant4 Phonon propagation, including focusing based on elasticity tensor (right) e-/h+ transport, including conduction band anisotropy and Luke-Neganov emission, under development (below) Closing Remarks - M. Asai (SLAC) 13

14 e- /h propaga=on with Luke phonon emission in Ge crystal Closing Remarks - M. Asai (SLAC) 14

15 Closing Remarks 15- M. Asai (SLAC)

16 Observed and Predicted SEU Rate for an SRAM SRAM used on NASA spacecraft Observed Average SEU Rate: 1x10-9 Events/Bit/Day Vendor predicted rate: Multi-layered Stack 2x10-12 Events/Bit/Day Classical Method based on L.E.T. nearly a factor 500 lower than observed rate MRED MRED rate (includes reaction products): Between 1.3x10-10 and 1.3x10-9 Errors/Bit/Day Courtesy of R.Reed (Vanderbilt U.) Closing Remarks - M. Asai (SLAC) 16

Connecting Geant4 and Fortran Penelope code Geant4 physics takes care of tracking electrons down to 500 kev (red lines), and then Penelope physics (including its native multiple

17 Connecting Geant4 and Fortran Penelope code Geant4 physics takes care of tracking electrons down to 500 kev (red lines), and then Penelope physics (including its native multiple scattering) takes care of them down to 50 ev (purple lines). Everything is inside Geant4 framework. Penelope Fortran code is wrapped in G4VProcess base class. Closing Remarks - M. Asai (SLAC) 17

18 ASTRO-H (3) Closing Remarks 18- M. Asai (SLAC)

Investment for the future EM physics ported to GPU Primary beam Geant4 (msec/event) CUDA (msec/event) 6 MeV gamma 18 MeV gamma 20 MeV electron 0.822 0.857 1.87 0.00331 0.00425 0.

19 Investment for the future EM physics ported to GPU Primary beam Geant4 (msec/event) CUDA (msec/event) 6 MeV gamma 18 MeV gamma 20 MeV electron Speedup V9.6-p03 CPU : Xeon E v GHz single core GPU : Tesla K20c (Kepler) 706 MHz, 2496 cores 18 MeV photon longitudinal dose distribution 100M primary photon Water phantom 30.5 x 30.5 x 30 cm 3 Voxel size 5 x 5 x 2 mm 3 Irradiation of 50 million 6 MeV monochromatic photons calculated by GPGPU (demonstration purposes only!) Closing Remarks - M. Asai (SLAC) Collaboration of SLAC, Stanford ICME and KEK with support of NVIDIA 19

SLAC Geant4 team http://geant4.slac.stanford.edu/ Closing Remarks - M.

20 SLAC Geant4 team Closing Remarks - M. Asai (SLAC) Covers most of the Geant4 categories Is happy to organize Geant4 tutorial At SLAC or preferably at your place Is willing to collaborate with you!! 20

Next Geant4 Tutorial Four day hands- on tutorial course based on Geant4 version 10.

21 Next Geant4 Tutorial Four day hands- on tutorial course based on Geant4 version patch01 hosted by Laboratory for Nuclear Security and Policy, MIT on May Closing Remarks - M. Asai (SLAC) 21

22 To sum up Geant4 is a general purpose Monte Carlo simulation tool for elementary particles passing through and interacting with matter. It finds quite a wide variety of user domains including high energy and nuclear physics, space engineering, medical applications, material science, radiation protection and security was the 20 th year anniversary of Geant4. After 20 years with several architectural evolutions, Geant4 is still steadily evolving. Latest evolution was Geant4 version 10.0 released in December 2013 that is the first fully multithreaded general-purpose large-scale physics software in the world. Next evolution is migration to the new C++ standards, C++11/14. New physics models for coming experiments, e.g. hadronic model for multi-tev regime (for energy frontier), specialized EM model for noble liquid (e.g. liq.xe) and neutrino physics model (for intensity frontier) Given Geant4 is nowadays mission-critical for many users including all HEP experiments, space missions, medical applications, etc., Geant4 is to be kept maintained and still evolving for at least next decade. SLAC Geant4 team offers the best-of-the-world expertise on Geant4, and supports and collaborates with Geant4 users of all application domains in US and beyond. Closing Remarks - M. Asai (SLAC) 22

23 Thank you for your attendance. Let s keep in touch.

Future Perspectives. Maria Grazia Pia, INFN Genova in rappresentanza del gruppo Geant4-INFN.

Future Perspectives. Maria Grazia Pia, INFN Genova in rappresentanza del gruppo Geant4-INFN. Future Perspectives in rappresentanza del gruppo Geant4-INFN http://www.ge.infn.it/geant4/ Commissione Calcolo e Reti Roma, 21-22 febbraio 2005 Geant4: the present BaBar 2.2 billion events, 700 years,