FP6 Design study "DIRACsecondary Beams" "NUSTAR":Experiments with stored radioactive beams

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FP6 Design study "DIRACsecondary
Beams""NUSTAR"Experiments with stored
radioactive beams
Task 6 High-power production targets for
fast-extracted beamsK.Sümmerer (GSI)
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FP6 Design study "DIRACsecondary beams"Project
"NUSTAR"Experiments with stored radioactive
beamsTask 6 High-power production targets for
fast-extracted beams
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Work package 1Calculations of energy deposition
etc.
1. Calculations for the slow-extraction scheme
ANSYS Workbench
B. Achenbach
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Work package 2Engineering design of rotating
wheel target
Model PSI Target E (G. Heidenreich et al.) 5
Thickness steps 1, 2.5, 4, 6, 8 g/cm2 Graphite
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Work package 3Heat deposition in final design
ANSYS B. Achenbach
1012 ions/s 1 Hz rotation frequency, Gaussian
profile with sy 2mm
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Work package 3Mechanical and thermal boundary
conditions
Stress distribution
Beam 1012 238U/s 12 kW
max. 22 MPa
ANSYS B. Achenbach
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Work package 4 Experimental verification of
temperature and stress
What is the limiting energy density for graphite
as a fast-extraction target for high-intensity
238U beams?
S334 Accepted SIS experiment Measurements of
stress waves in graphite with Laser Doppler
vibrometer together with R. Wilfinger et al.
(CERN)
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Work package 5Feasibility study of liquid-metal
jet target
Leading participant
L.Stoppel, S.Gnieser, S.Gordeev, M.Daubner,
R.Stieglitz and the KALLA team
Step 1 Water Jet Model Water test loop
available, measurements have started in Nov. 2006
Step 2 Liquid-Na jet Na test loop being
assembled, measurements will start in spring 2007
Step 3 Liquid-Li jet Components are in house
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Work package 5Feasibility study of liquid-metal
jet target
Step 1 Water simulation
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Work package 5Feasibility study of liquid-metal
jet target
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Outlook
To Do-list for the work packages in 2007

• Theoretical calculations continue work on
  fast-extraction scheme (LS-DYNA, AUTODYN)
• Report on Technical Design of a Rotating
  Graphite-Wheel Target due 29-JAN-2007 build and
  test prototype
• Thermal calculations Work package completed
• Perform experiment S334 measure thermal stress
  waves for fast-extracted SIS18 beams in graphite
  samples with Laser Doppler vibrometer
• Continue feasibility studies of a liquid-metal
  target for fast extraction with water and liq. Na
  jets.

Contributors to NUSTAR Task 6 B.Achenbach,
K.-H.Behr, A.Bruenle, H.Geissel, C.Karagiannis,
A.Kelic, B.Kindler, B.Lommel, K.Sümmerer,
N.Tahir, M.Tomut, C.Trautmann, H.Weick,
M.Winkler (GSI) C.H.M.Broeders, M.Daubner,
S.Gnieser, S.Gordeev, A.Konobeev, R.Stieglitz,
L.Stoppel (FZK) J.Maruhn, A.Tauschwitz (Uni
Frankfurt) J.Lettry, H.Richter, R.Wilfinger (CERN)
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Task 6 "NUSTAR1" Cost Table