Post on 15-Dec-2015
2013 Joint Workshop of the France-Japanand France Korea Workshop
Yonsei University, June 4~5, 2013
Kihyeon Cho (KISTI) and Marc Verderi (LLR, N2P3)
Beam Simulations
Contents
• The French and Korean LIA teams
• Korean Group Activity– Geant4 at KISTI Supercomputer– Heavy Ion Beam Simulation– B physics
• French Group Activity
• Plan2
Members
• Korea Group– Kihyeon Cho (KISTI)– Kyungho Kim, Youngjoon Kwon (Yonsei U.)– Huiyoung Ryu, Taegil Bae, Junghyun Kim,
Soo-hyeon Nam (KISTI)
• France Group– Marc Verderi (LLR, IN2P3)
Theory
B Physics - Phenomenological Model- Lattice QCD
ExperimentBeam
Simulation
- CDF- Belle- BaBar
- Cyber HEP Lab- Geant4 -KISTI Supercomputer
For particle Physics
The purpose (1/2)
• To collaborate on beam simulation based on Geant4• The Korean and French teams have indeed
developed Geant4 R&D working within Geant4 collaborations.
• The Koran team for their implication in the RISP (Rare Isotope Science Project).
• KISTI team has been working on Geant4 R&D (AIX, MT) and also Geant4 beam simulations for secondary beam.
• The French team has been working on beam simulations for particle physics accelerators (ATF2) and is moving to medical applications.
The purpose (2/2)
• We have also fundamental topics in High Energy Physics namely the B physics.
• B Physics is a major topic where the French IN2P3 team is pursuing its participation especially in BaBar experiment while Korean team in CDF and Belle/BelleII experiments.
• We have searched for rare decay mode to probe Standard Model and search for new physics, while the French team has continuing interest in CP violation.
• Therefore, we have still important breakthroughs are expected in these coming years for B physics theories.
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Geant4 Spokesperson - Makoto Asai (SLAC)
KISTI colleagues have already made a big contribution in testingof recently released prototype of multi-threaded Geant4, and inenhancing our support on AIX operating system. We find KISTI is rapidly becoming one of the two major development and user-support centers in Asia, complementing with KEK in Japan
KISTI Supercomputing KISTI Supercomputing PortingPorting
• Sun Linux ClusterSun Linux Cluster– Geant4 ST– Geant4 MPI(ParGeant4)– Geant4 MT
• IBM AIX OSIBM AIX OS– Geant4-MT – Medical Application
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Tachyon(SUN)
Phase 2
Manufacture SUN Blade 6048
Architecture Cluster
Process model Intel (Nehalem)
# of Nodes 3,200 nodes
# of CPU cores25,600
(8 per node)
Rpeak
(Tflops)
300
324
Total Memory 76TB
Disk Storage 1.2PB
Tape Storage 2PB
Interconnection Network IB 4X QDR
Community Supports
• Geant4 & Indico homepage– https://hep.kisti.re.kr/geant4– https://hep.kisti.re.kr/indico
• Geant4 BBS(New)• Q&A Contact person: hep@kisti.re.kr
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The contents of collaboration between
France and Korea 1) We have exchanged visitors:- Kihyeon Cho visited France
- Date: Sep. 10 ~ 14, 2012- Geant4 Collaboration Meeting and discussions
- Marc Verderi visited Korea- Date: Oct. 29 ~ Nov. 2, 2012- International Geant4 Tutorial and workshop
2) We have performed the International Geant4 Tutorial together.
Sciences & Applications with rare isotopesSciences & Applications with rare isotopes
Nuclear Physics Exotic nuclei near the neutron drip line Superheavy Elements (SHE) Equation-of-state (EoS) of nuclear
matter Nuclear structure
Nuclear Astrophysics Origin of nuclei Paths of nucleosynthesis Neutron stars and
supernovae
Atomic/Particle physics
Atomic trap Fundamental
symmetries
Material science Production & Characterization of new materials -NMR / SR
Medical and Bio sciences Advanced therapy technology Mutation of DNA New isotopes for medical
imaging
Nuclear data with fast neutrons Basic nuclear reaction data for future nuclear
energy Nuclear waste transmutation Ref. Prof. Sunkee Kim
Medical Application
γ
γ
3. PET Image by Annihilation
1. Bragg Peak of Heavy Ion Beam
Rare Isotope Beam
2. Secondary Effect by Alpha Particle due to Heavy Ion Beam
Ref. Prof. Sunkee Kim
Reference Beam Study – dE/dx
• Brief result of reference beam study
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Color index◦ Proton
(Red)◦ Muon
(Green)◦ Pion (Blue)◦ Kaon
(Black)
Dots are not scaled!!!
Plan of Heavy Ion Beam Simulation
• To study secondary beam using proton beam at 238U target
• To study interactions between 238U and 12C, …
French Group will benefit it.
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B physics in KoreaB physics in KoreaPhysics Experiments Theories
phi meson photoproduction
Spring-8CLAS
Effective Lagrangian approach
Kaon Semil-leptonic Form Factor
Belle LQCD using staggered Fermion
Rare B0 decays Belle Left-Right models
Mixing and CPV on Bs CDF
Left-Right models
Top Forward-backward asymmetry
CDF Model independent Analysis
CP violating dimuon charge asymmetrydue to B mixing
D0 Left-Right models
S.-h Nam et al. PLB 691, 238 (2010)S.-h Nam et al. PLB 691, 238 (2010)
K. Cho, S.-h Nam, [hep-ph] 1112.0091K. Cho, S.-h Nam, [hep-ph] 1112.0091
Y. J. Kim, K. Cho et al. CDF (2012)Y. J. Kim, K. Cho et al. CDF (2012)
J. H. Kim et al. PRD 86, 031101(R) (2012)J. H. Kim et al. PRD 86, 031101(R) (2012)
C.-H. Chen, S.-h. Nam, PLB 666, 462 (2008)C.-H. Chen, S.-h. Nam, PLB 666, 462 (2008)
K. Y. Lee, S.-h Nam, PRD 85, 035001 (2012)K. Y. Lee, S.-h Nam, PRD 85, 035001 (2012)
T. Bae, et al. PRL 109, 041601 (2012)T. Bae, et al. PRL 109, 041601 (2012)
H.Y. Ryu work in progressH.Y. Ryu work in progress
French group activity (1/2)• French group involved in development for medical
beam instrumentation.– In the context of the “GDR MI2B”– Development of beam profilers (hodoscopes made of
plastic fibers + camera) used in CNAO (Pavie, Italy) and MedAustron (Wiener Neustadt, Austria).
• Start investigation of beam profilers based on OTR or secondary emission– For better tolerance to radiations
Hodoscope developed by M. Haguenauer & Co., now retired.
Fiber plane (other direction plane on the other side)
CCD camera
French group activity (2/2)• Has interest in simulating beam-line + instrument.
– Korean group developed such Geant4 ion beam line simulation that French people should benefit from
• Background from beam line and near environment to be simulated likely with event biasing methods– French group is developer of these techniques in Geant4
(with new ones for next G4 release), and could help in making these methods used by Korean team.
– Has experience of neutron background simulation at ATF2 using such class of techniques.
– Such methods are generic and could be applied elsewhere, in treatment planning for example.
Ex. of data/MC+biasing comparison of plastic scintillator waveform from neutrons from beam dump @ATF2
time (ns)
z (mm)
Test plot for new biasing methods in Geant4: interaction of are forced in a thin liquid-N2 volume.
Usual sim.Biased sim.
DataSim. (other sim.)
We are going
1. To exchange visitors => To share visiting and exchange
researchersTo stay at IN2P3 or KISTI for co-
work2. To organize workshops3. To perform analyses in close
collaboration and work together4. To achieve common goals
Future Conferences• 2013 Geant4 user conference at the
physics-medicine-biology frontier– October 7-11, 2013 @ Bordeaux, France– http://geant4.in2p3.fr/2013
• Monte Carlo 2013– October 27-31, 2013 @ Paris, France
• IEEE/NSS/MIC/RTSD-2013– October 27 – November 2, 2013 @ Seoul,
Korea
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