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FP6 Design Studies for the NUSTAR Facility
Martin Winkler for the NUSTAR collaboration FP6 Design Studies Coordination Meeting, GSI Germany, Dec. 16, 2003
• The NUSTAR Facility
• Proposed FP6 DS Subjects• Focusing Systems in front of the Targets• High-Power Production Targets • The Super-FRS Design, Instrumentation• The Experimental Branches
• Request Resources
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The NUSTAR Facility (I)
Key characteristics (importance for the NUSTAR facility) : • all elements, H to U all elements, H to U • intensity > 10intensity > 101212 ions/sec. ions/sec. • high energy, 1.5 GeV/u high energy, 1.5 GeV/u • pulsed and CW beamspulsed and CW beams
• SIS 100/300 High-Intensity Accelerator
• IN-Flight Rare-Isotope Beam Facility
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The NUSTAR Facility (II)
The NUSTAR Facility comprises a: High-acceptance Superconducting
FRagment Separator (Super-FRS) High-Energy Reaction Setup Multi-Storage Rings (CR, NESR, eA) Energy-Bunched Beams
Main Features:• Production and in-flight separation of exotic nuclei by projectile fragmentation and 238U fission (heavy, neutron-rich) nuclei far from stability• Provides NEW techniques for reactions with exotic nuclei
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Focusing System in front of the Super-FRS Target
Q 11 Q 1 2 Q 1 3 Q 2 1 Q 2 2Q 3 1 Q 3 2 Q 3 3 Q 4 1 Q 4 2 Q 4 3
2 5 .2 m
0
2 0
2 0
/ cm
L / [m] G0 / [mm] B100Tm / [T] B20Tm / [T]
Q11 0.75 80 -1.79 0 Q12 0.75 80 -1.79 -0.88 Q13 0.75 80 -1.79 0
Q21 1.3 190 1.77 0 Q22 1.3 190 1.77 0.59
Q31 1.3 190 -1.79 0 Q32 1.3 190 -1.79 -0.88 Q33 1.3 190 -1.79 0
Q41 0.75 80 1.80 0 Q42 0.75 80 1.80 0.89 Q43 0.75 80 1.80 0
(Accelerator Group, GSI Magnet Group, G. Moritz et al.)
Primary Beam Parameters: B = 100 Tm / 20Tm
x = 25 mm mrad
y = 25 mm mrad
(dp/p)max = ±1% Drift to target: 1.5m
xfinal = ±1 mm
yfinal = ±2 mm
Proposed design uses Large aperture superferric magnets(identical to separator magnets)
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Design Study: Focusing Systems
• Tasks:
Ion-optical design of very strong focusing systems (spot <1mm -> Plasma Physic), Influence/correction of image aberrations
Specification of magnetic elements (cos – magnets?)
• Duration: 3 years, 1/2005 – 12/2007
• Collaboration: JLU Giessen(D), GSI (D)
• Request: personnel: 1 FTE (postdoc) ~ 150 k€
travel ~ 10 k€
overhead ~ 20 k€
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High-Power Production Targets for Slow Extracted Beams
Conceptual design of a rotating target wheel was done within the R3B (FP5)
C target
Tmin = 590 CTmax = 1376 CWeight = 650 g
Rext = 105 mmRint = 17mmThickness = 19mm
Ion beam intensity: 1012 ions/sBeam spot: circular, Gaussian distribution, = 1-2 mm Target material: C (graphite), Tsubl= 3900 K
10 11 12 13 14 15
1000
1100
1200
1300
1400
1500
1600
1012 pps 238U (1 GeV/u) -> C
6 g/cm2
4 g/cm2
2 g/cm2
1 g/cm2
T [K
]
R [cm]
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Design Study: High-Power Targets for Slow Extraction
• Tasks: Technical design and prototype construction of a target wheel (how to
vary target thickness; include concepts for handling and repair after failures),
Investigation of thermal properties of the final design, Long-term, power and handling tests of the prototype target
• Duration: 3 years, 1/2005 – 12/2007
• Collaboration: GANIL (Fr), GSI (D)
• Request: personnel: 1.5 FTE (engineer&physicist) ~ 225 k€ funds: prototype construction of a target wheel ~ 250 k€ travel ~ 15 k€
overhead ~ 70 k€
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High-Power Production Targets for Fast Extracted Beams
target explodes after ca. 50 ns!
1012 U ions/50 ns on:
3.4 g/cm2 Li targetP = 166 GW
5.5 g/cm2 Pb targetP = 200 GW
Options:Investigate (windowless?) liquid films (e.g. Li)Other replaceable targets (Pellets)? Follow developments for muon factories (short pulses!)Fall-back solution:
Rotating-graphite-wheel target
Assume moderate requirements for startupInvestigate operating of Super- FRS with extended beam spot
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Design Study: High-Power Targets for Fast Extraction
• Tasks: Calculation of the thermal response of fast-extracted beams in target materials, Ion-optical calculations through the Super-FRS (resolution,
transmission) for extended beam spots Installation and adaption of hydrodynamical codes to calculate shock
waves in liquid metal jets,
• Duration: 3 years, 1/2005 – 12/2007
• Collaboration: GSI (D), JLU Giessen (D), ANL (USA)
• Request: personnel: 1 FTE (postdoc) ~ 150 k€ travel ~ 15 k€ overhead ~ 20 k€
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FR S
S uper-FR S D egrader
D egrader 1
D egrader 2
The Large Acceptance SUPERconducting FRagment Separator SUPER-FRS
resolv ing pow erB m ax p /p x y
F R S 18 T m 1.0 % 13 m rad 13 m rad 1500+ +
Z
Super-FRS
FRS30X
10X
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Design Study: The Super-FRS
• Tasks: Engineering design of the Super-FRS (Degrader and slit systems, focal-plane
experimental chambersslow-control system, conceptual design of the DAQ system, electrical power lines, water, gas, and cryogenic distribution, vacuum system)
Large aperture superferric magnets (will be discussed by G. Moritz), Technical design of the beam dump (1st dipole stage), Detector development: technical design and prototype construction of Time-
Projection Chambers (TPC) with novel cathode read-out and technical design and prototype construction of Beam Chambers (BC) for very high beam fluxes
• Duration: 3 years, 1/2005 – 12/2007
• Collaboration: JLU Giessen(D), GSI (D), FMF Bratislava (Sl), PNPI St. Petersburg (Ru)
• EU request: personnel: 3 FTE (engineers) ~ 450 k€ + 3 FTE (physicists) ~ 450 k€ funds: TPC and BC prototype construction ~ 300 k€ travel: ~ 60 k€ overhead: ~ 90 k€
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Energy Buncher and Instrumentation of the Low-Energy Branch
Tra p syste m
1m
Extraction RFQ
Cooler trap
Precision trap
Detector
LA SER sp e c tro sc o p y
De c a y sp e c tro sc o p y
.-ra y sp e c tro sc o p y
AGATAp
+ p
- p
p ’
p ’
p ’
Si-De te c to rs
Na I - C rysta ls
Sup e r-C lo ve rG e -De te c to r
Na I - C rysta ls
Decay spectroscopy Reactions near the
Coulomb barrier Laser spectroscopy Ion traps
Experiments with Low-energy and Stopped beams
Pa ra ffine a nd c o nc re te shie ld ing
C o nc re te
x, y, E, TO F
x, y, E, TO F
Dum p
Dum p
LA SER sp e c tro sc o p y
So lid -sta te p hysic s,m e d ic ine , e tc . Tra p
syste m
Po we r sup p lie s
Po we r sup p lie s fo r b e a m -line m a g ne ts
Ro o ts b lo we r,g a s p urific a tio n,g a s re c yc ling
G a sc e ll
35 m e te r
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Design Study: The Low-Energy Branch
• Tasks:
Specification and technical design of special magnets (see talk by G. Moritz); technical design of a variable degrader system; characterization, performance tests, and further development of an existing gas-cell prototype; development of an ion-extraction system; design of an efficient beam-distribution system to various experimental places
• Duration: 3 years, 1/2005 – 12/2007
• Collaboration: Uni. of Leuven (B), CERN/ISOLDE, IEP Warsaw JLU Giessen(D), GSI (D)
• Request: personnel: 2 FTE (postdoc) ~ 300 k€
travel: ~ 30 k€
overhead: ~ 45 k€
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Exotic beam from Super-FRS
TargetHigh-resolution measurement
Developments for High-resolution measurement:( e.g. elm excitation (heavy nuclei), knockout, quasi-elastic scattering, GT, ... )
-> new magnetic spectrometer:
gammasprotons neutrons
fast neutrons
heavy fragments
The high-energy branch of the Super-FRS:A versatile setup for kinematical complete measurements of
Reactions with Relativistic Radioactive Beams
• acceptance at least that of the SUPER-FRS• momentum resolution dp/p~10-4 (with tracking)• dispersion matching with SUPER-FRS (alternatively measurement of incident • momentum better than 10-4 -> tracking + high-res.ToF, rate capability)
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Design Study: The High-Energy Branch The R3B High-Resolution Spectrometer
• Task: Conceptual design of the spectrometer; cost estimation; matching to the Super-FRS
• Duration: 3 years, 1/2005 – 12/2007
• Collaboration: GSI (D), JLU Giessen (D), NSCL/MSU (USA), ANL (USA)
• Request: personnel: 2 FTE (postdoc) ~ 300 k€
travel: ~ 30 k€ overhead: ~ 50 k€
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Experimental Opportunities at the NESR
Light hadron (p,d,He..) scattering internal-target experiments
Electron scattering Electron-Ion Collider
Detector system for the internal gas target
Test experiments using the in ring prototype magnet (financed by TUD)
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Design Study: The Ring Branch (I) Detector System for the Internal Gas Target
• Task: Design of a position sensitive ΔE-E telescope, prototype of a test-setup
• Duration: 3 years, 1/2005 – 12/2007
• Collaboration: FZ Jülich (D), GSI (D), KVI Gronigen (NL), PNPI St. Petersburg (Ru)
• Request: personnel: 1 FTE (postdoc) ~ 150 k€ funds: prototype detector array ~ 150 k€
travel: ~ 15 k€ overhead: ~ 60 k€
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Design Study: The Ring Branch (II) Electron Spectrometer for the eA collider
• Task:
Experiments for the concept/design of the spectrometer using the in ring prototype magnet (financed by TUD)
• Duration: 3 years, 1/2005 – 12/2007
• Collaboration: TU Darmstadt (D), GSI (D), (KVI Gronigen (NL))
• Request: personnel: 1 FTE (postdoc) ~ 150 k€ funds: scattering chamber ~ 40 k€
travel: ~ 10 k€
overhead: ~ 40 k€
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Request Summary (for the Period 2005 – 2007)
Task Institutes Personnel Funds Travel Overhead
High-Power Production Target GANIL (Fr) 375 k€ 250 k€ 30 k€ 90 k€ Targets for slow extraction (technical design and prototype construction of a target wheel)
GSI (D) JLU Giessen (D)
(2.5 FTE)
Targets for fast extraction (installation & adaption of hydrodyn. codes, thermal response of fast-extracted beams to targets, ion-optical calculations for extended target beam spot)
ANL (USA)
Ion-optics JLU Giessen (D) 300 k€ 20 k€ 45 k€ Target focusing systems, Energy Buncher, High-Resolution Spectrometer & Coupling to Super-FRS
GSI (D) PNPI, St. Petersburg (Ru) MSU (USA), ANL (USA)
(2 FTE)
Engineering Design Electrical power lines, water, gas, and cryogenic distribution, vacuum system, degrader and slit systems, detector concept, slow-control system, conceptual design of the DAQ system
GSI (D) 450 k€ (3 FTE)
30 k€ 60 k€
Magnets Will be coverd by the presentation of G. Moritz
Detector Developments FMF, Bratislava (Sl) 450 k€ 300 k€ 30 k€ 70 k€
Design and prototype construction of TPC and BC Design and production of TPC and BC electronics
PNPI, St. Petersburg (Ru) GSI (D)
(3 FTE)
DS for the Low-Energy Branch Univ. of Leuven (B) 150 k€ 20 k€ 30 k€
Design, layout and specification of a variable degrader system, design of an ion-extraction and beam-distribution system for the LEB, test experiments with the existing gas-cell prototype
CERN/ISOLDE IEP, Warsow (Pl) GSI (D)
(3 FTE)
Detector System for a Gas Target KVI Groningen (Nl) 150 k€ 150 k€ 15 k€ 60 k€
Design of a position sensitive ΔE-E telescope, prototype of a test-setup
FZ Jülich (D) PNPI, St. Petersburg (Ru) GSI (D)
(1 FTE)
Electron spectrometer for the eA collider TU Darmstadt (D) 150 k€ 40 k€ 10 k€ 40 k€
Experiments for the concept/design of the spectrometer KVI Groningen (Nl) GSI (D)
(1 FTE)
Sum 2.025 740 155 395