helmholtz international center for opportunities for nustar and accelerator r&d norbert...
TRANSCRIPT
Hel
mho
ltz In
tern
atio
nal C
ente
r fo
r Opportunities for NuSTAR and Accelerator R&D
Norbert Pietralla
Technical University Darmstadt (TUD)
(Institute for Nuclear Physics)
Helmholtz International Center for FAIR
March 6, 2008 Norbert Pietralla 2
Hel
mho
ltz In
tern
atio
nal C
ente
r fo
r What is NuSTAR ?
Basic research in
Nuclear STructureNuclear Astrophysics
Nuclear Reactionswith beams of short-lived
nucleiat energies 0 – 1.5 GeV/u @
FAIRInternational collaboration (established in 2003)
chair: W.Gelletly, Univ. of Surrey, UKmembers: > 700 nuclear scientists
> 120 institutions > 25 countriespurpose: superstructure of 9 experimental collaborations at
FAIR including nuclear theory
International collaboration for physics with radioactive ion beams at FAIR
HIC for FAIR aims at an exploitation of the hightech opportunities at the FAIR accelerator complex. The HIC will guarantee a dominant role in selected
NuSTAR experiments and theory for Hessian universities, its students, and society.
March 6, 2008 Norbert Pietralla 3
Hel
mho
ltz In
tern
atio
nal C
ente
r fo
r Motivation for NuSTAR
March 6, 2008 Norbert Pietralla 4
Hel
mho
ltz In
tern
atio
nal C
ente
r fo
r Motivation for NuSTAR
What are the limits of nuclear existence ?
How does the nuclear force depend on a variation of the proton-to-neutron ratio ?
How do collective nuclear phenomena emerge from nucleons and nuclear force ?
How are complex nuclei formed from the underlying constituents and QCD ?
What nuclei are relevant for cosmic processes and what are their properties ?
March 6, 2008 Norbert Pietralla 5
Hel
mho
ltz In
tern
atio
nal C
ente
r fo
r HIC for FAIR project areas
Monte Carlo methods Coupled partial-differential equations QCD-phenomenology Detector design, Optimization and R&D Pattern recognition and Trigger concepts Large volume data analysis Accelerator optimization and R&D
HIC for FAIR concentrates on strategic NuSTAR activities
that complement the expertise of HIC‘s partner institutions.
March 6, 2008 Norbert Pietralla 6
Hel
mho
ltz In
tern
atio
nal C
ente
r fo
r HIC for FAIR opportunities for NuSTAR
HIC for FAIR provides access to NuSTAR experiments, theory, and technology for academic groups and students at Hessian universities
Low-Energy Branch:
- HISPEC/DESPEC (AGATA)
High-Energy Branch
- R3B
Ring Branch
- ILIMA - EXL - ELISe
Super-FRS
Accelerators (3 examples and following presentation of selected work packages)
March 6, 2008 Norbert Pietralla 7
Hel
mho
ltz In
tern
atio
nal C
ente
r fo
r
p-bar target
p-linac
Super- FRS
SIS100SIS300
HESR
CR
RESR
The FAIR Accelerator ComplexSIS 100
NESR
HESR Antiproton Prod. Target
SIS18
CR
GSI Today
RESR
p-linac SIS 300
UNILAC
FAIR
FAIR Accelerator Physics
Synchrotron RF cavities
Physics program requires a high-intensity proton beam
FAIR requires a reliable injector chain
Superconducting CH-cavity
SC LINAC cavities
March 6, 2008 Norbert Pietralla 8
Hel
mho
ltz In
tern
atio
nal C
ente
r fo
r HIC for FAIR opportunities for Nuclear Masses
Involve HIC for FAIR project areas Detector Design Accelerator Optimization
Will be measured withNuSTAR-ILIMA @ FAIR
March 6, 2008 Norbert Pietralla 9
Hel
mho
ltz In
tern
atio
nal C
ente
r fo
r HIC for FAIR opportunities for Supernova Simulation
Expand from 1-D model to 2-D, 3-D
Nuclear Equation of State Neutrino transport in matter Nuclear masses and reaction
rates far off stability
Current status:A spherical supernova does not explode !
Remnants of SN1054
March 6, 2008 Norbert Pietralla 10
Hel
mho
ltz In
tern
atio
nal C
ente
r fo
r Supernova Simulation
Involve HIC for FAIR project areas Monte Carlo Simulations (dynamics of SN) Coupled partial differential equations (nucleosynthesis networks) QCD-phenomenology (extrapolate masses, Q-values, reaction cross sections)
Courtesy: Hans-Thomas Janka
HIC for FAIR challenge:Supernova simulation consistent with observedr-process abundance
March 6, 2008 Norbert Pietralla 11
Hel
mho
ltz In
tern
atio
nal C
ente
r fo
r Pattern Recognition: HISPEC/DESPEC
AGATA-prototype 2007
March 6, 2008 Norbert Pietralla 12
Hel
mho
ltz In
tern
atio
nal C
ente
r fo
r Pattern Recognition: HISPEC/DESPEC
AGATA for optimum Doppler-correction and efficiency
HIC for FAIR challenge:Gamma-tracking algorithms for HISPEC
Gamma-imaging as a potential commercial spin-off.
Involve HIC for FAIR project areas Large volume data analysis Pattern recognition