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Martin Winkler, Task7: NUSTAR2 15-4-05
Task7: NUSTAR2 - Design and Prototype Construction of a Radiation-Resistant Magnet
The Pre-Separator of the Super-FRS
Sub-Tasks of NUSTAR2 (Choice)
Implementation Plan, Milestones & Deliverables
Project Resources and Budget
Martin Winkler Kick-off meeting EU DS "DIRACsecondary-Beams",
April 14-15, 2005, GSI, Darmstadt, Germany
Task leader of NUSTAR2: Gebhard Moritz, GSI
Martin Winkler, Task7: NUSTAR2 15-4-05
Design parameters and layout of the Super-FRS
• Large phase space large aperture magnets
• High beam energies + large apertures
high pole tip fields for quadrupols
use superconducting magnets
Design Parameters
1500R
Tm20Bρ
%2.5p
Δp
mrad20φ
mrad,40φ
mradmmπ40εε
ion
max
y
x
yx
High-radiation area
Martin Winkler, Task7: NUSTAR2 15-4-05
Requirements of Magnetic Elements of the Preseparator
Can the magnets stay superconductingafter the target and beam dumps?
PF2
1,3
Martin Winkler, Task7: NUSTAR2 15-4-05
Beam dump locations in the 1st stage of the Pre-Separator
Trajectories of primary beams with differentB/ Bbeam
Light fragments
The primary beam is always dumped in well-defined positions outside the magnets !
Target
Beam Dumps
Martin Winkler, Task7: NUSTAR2 15-4-05
Exploration of radiation load on magnets behind the high-power production target
Projectile:
1500 MeV/u 238U 1012/sσx = 1.0 mm
σy = 2.0 mm
σp /p = 0.5%
Energy deposition distribution (calculated with PHITS)
Avarage energy depositionon on the coil surface:
E>/M= 0.46 mJ/g (quench limit: 2-3 mJ/g)
Heat load on the cryogenic system for a 5 ton quadrupole magnet:
Expected FAIR cryogenic power: 20 kW
Geometry
Target: Carbon 4 g/cm2
≈ 2.3 kW
Martin Winkler, Task7: NUSTAR2 15-4-05
Radiation sensitivity of coil materials and insulator
Material Radiation limit / [Gy]
NbTi ≈ 5 · 108
Nb3Sn ≈ 5 · 108 (+)
Copper > 1010
Ceramics (Al2O3, MgO, etc) > 109
Organics 106 -108
Behind target and beam dump: Expected heat load ≈ 1 mJ/g
is equivalent to a dose rate of 1 Gy/s
Assume 4000 h/year operation time 14 MGy accumulated dose
Ceramic insulation is required
Martin Winkler, Task7: NUSTAR2 15-4-05
Radiation resistant (normal-conducting) magnet
Magnet Cross Section
Parameter:
B = 1.6 TI = 600 AJ = 1.5 A/mm2
P = 50 kWΔB/B ≈ 2×10-4
ΔR = ±20 cm
Weights (12.5 m, 11°):
Fe: 72 tCu: 9.5 t
Coil Cross Section
Martin Winkler, Task7: NUSTAR2 15-4-05
No accessNo access of human personnel
High demands on accuracyaccuracy (some 1/10 of mm)
Handling curvedcurved beamlines with a length up to 50 m
"RALFRALF" - RRemote ALALignment on the FFlyBased on PhotogrammetryPhotogrammetry
non-contactnon-contact high accuracyhigh accuracy
data capture within a shortshort timetime
Automated guided vehicle systemAutomated guided vehicle system
Remotely controlled adjustmentRemotely controlled adjustment of accelerator components
After commissioningAfter commissioning of the SuperFRS a very high level of radiationhigh level of radiation is expected.
S&A "as usual" will not be possibleS&A "as usual" will not be possible due to prohibited or limited access.
in cooperation with i3mainzInstitute for Spatial Information and Surveying Technology
Conceptual design of a high-precision Survey and Alignment System for high-radiation areas of FAIR
Martin Winkler, Task7: NUSTAR2 15-4-05
Multi-annual implementation plan for NUSTAR2
Martin Winkler, Task7: NUSTAR2 15-4-05
Participating institutes in task7 (NUSTAR2)
Organisation Sub-Task
GSIRadiation Impact, Magnetic Field Calculation, DesignDrawings, Prototyping
Philipps Universität Marburg Material Research
Technische Universität Dresden Cryogenics
Fachhochschule Mainz Surveying & Alignment
Babcock Noell Nuclear (industry)
Coil winding
Martin Winkler, Task7: NUSTAR2 15-4-05
Milestones and Deliverables of NUSTAR2
Milestones• M7-1: Decision on insulating material, 10/2005*
• M7-2: Delivery of model coil, 9/2006*
• M7-3: Design and test for Surveying and alignment system
finished, 4/2007*
• M7-4: Prototype Magnet delivered, 12/2007*
Deliverables• D13: Report on exploration of conductor and cable, 1/2006*
• D14: Report on the model coil, 1/2007*
• D15: Report on surveying and alignment system for high-
radiation areas, 7/2007*
• D16: Report on design and construction of the prototype
magnet, 12/2007*
Martin Winkler, Task7: NUSTAR2 15-4-05
Manpower / [PM] Investment / [k€] Organisation
Contrib. EU Requ. Contrib. EU Requ. Expected
budget [k€] Request
[k€]
1 GSI, Darmstadt 16 15 277 284 778 389
16 TUD, Dresden 3 3 0 0 30 15
20 PUM, Marburg 9 9 0 0 96 48
21 FHM, Mainz 21 18 0 8 209 104
22 BNN (Industry) 2.5 2.5 0 0 66 33
Total: 51.5 47.5 277 521 1.179 589
Summary of Project Resources and Budget of the DP NUSTAR
The requested 589 k€ from the EU correspond to ≈ 41% of the overall EU request for the DP NUSTAR