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ESS-Bilbao Initiative Workshop. Design concepts of and lessons learned from the SINQ High Power Target Development Programme.
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ESS-Bilbao Initiative Workshop. Design concepts of and lessons learned from the SINQ High Power Target Development Programme.

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Design concepts of and lessons learned from the SINQ High Power Target Development Programme. …

Design concepts of and lessons learned from the SINQ High Power Target Development Programme.
Werner Wagner (PSI).

Published in: Technology, Business

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  • 1. Design Concepts of and Lessons Learned from the PAUL SCHERRER INSTITUT SINQ High Power Targets Aare by Werner Wagner Spallation Neutron Source Division ASQ Paul Scherrer Institut, PSI, Switzerland Proton accelerator Neutron Spallation Source SINQ Paul Scherrer Institut • 5232 Villigen PSI ESS Bilbao WS, March 16-19, 2009 / W. Wagner Paul Scherrer Institut • 5232 Villigen PSI G:ER01/standard/2003
  • 2. PAUL SCHERRER INSTITUT Proton beam: SINQ Targetstation 590 MeV, 51 MHz 2.0-2.2 mA 1.3 MW on SINQ: ~ 1.4 mA 0.8 MW Vertical Section of the SINQ Facility Target bulk shielding Paul Scherrer Institut • 5232 Villigen PSI ESS Bilbao WS, March 16-19, 2009 / W. Wagner
  • 3. PAUL SCHERRER INSTITUT SINQ target development: The early concept……. Paul Scherrer Institut • 5232 Villigen PSI ESS Bilbao WS, March 16-19, 2009 / W. Wagner
  • 4. PAUL SCHERRER INSTITUT late 1980‘s: Concept of a Liquid Metal Target for SINQ Vision or Fiction? Ch. Tschalär, W. Fischer, G. Bauer et al. Presented at ICANS-XI (1990) Internatl. Collaboration on Advanced Neutron Sources Paul Scherrer Institut • 5232 Villigen PSI ESS Bilbao WS, March 16-19, 2009 / W. Wagner
  • 5. PAUL SCHERRER INSTITUT outline • The SINQ solid target – from early achievments to routine operation • The MEGAPIE „adventure“ • Recent improvements of the solid target • The ultimate goal: LIMETS – a routine liquid metal target for SINQ Paul Scherrer Institut • 5232 Villigen PSI ESS Bilbao WS, March 16-19, 2009 / W. Wagner
  • 6. PAUL SCHERRER INSTITUT outline • The SINQ solid target – from early achievments to routine operation • The MEGAPIE „adventure“ • Recent improvements of the solid target • The ultimate goal: LIMETS – a routine liquid metal target for SINQ Paul Scherrer Institut • 5232 Villigen PSI ESS Bilbao WS, March 16-19, 2009 / W. Wagner
  • 7. PAUL SCHERRER INSTITUT SINQ Targetstation Vertical Section of the SINQ Facility Target bulk shielding Paul Scherrer Institut • 5232 Villigen PSI ESS Bilbao WS, March 16-19, 2009 / W. Wagner
  • 8. PAUL SCHERRER INSTITUT 1997-1999 The SINQ Target Mark 2: Solid target with Zircaloy rods equipped with thermocouples and test specimen rods: start of STIP, the SINQ Target Irradiation Program after 2 years of service as manufactured (6800 mAh of 570 MeV protons) Gerd Heidenreich Paul Scherrer Institut • 5232 Villigen PSI ESS Bilbao WS, March 16-19, 2009 / W. Wagner
  • 9. PAUL SCHERRER INSTITUT Since 2000: SINQ-Target Mark 3: Lead rods, cladded by steel tubes 42% increase in neutron yield 12.8 STIP continued and consolidated 14 22.08 12 13 11 9 10 8 7 6 5 C 4 Rod Including samples 3 A Hg Capsules B Pb-Bi Capsules C Pb-Bi Capsules 2 1 Tensile, Fatigue, TEM 1 2 Tensile, Fatigue, TEM Tensile, Fatigue, TEM 3 B A 4 Bend bar, Tensile, TEM Tensile, TEM 5 6 CT, Tal-clad W, SiC SANS 7 Bend bar, Tensile, TEM Fatigue, SANS, TAP 8 9 Carbon fibre samples Bend bar, Tensile, TEM 10 11 Charpy samples Charpy samples 12 Charpy samples 13 Charpy samples 14 Note: The materials of the Proton Beam samples are Steel, Inconel Zircaloy mainly. Thermocouple Paul Scherrer Institut • 5232 Villigen PSI ESS Bilbao WS, March 16-19, 2009 / W. Wagner DY,13.12.99
  • 10. PAUL SCHERRER INSTITUT Manipulator handling and dismantling Target in ATEC hotcell Kurt Geissmann et al. Paul Scherrer Institut • 5232 Villigen PSI ESS Bilbao WS, March 16-19, 2009 / W. Wagner
  • 11. PAUL SCHERRER INSTITUT Approaching a lifetime assessment of high-power target materials: Extensive materials studies within STIP A martensitic steel T91 (9Cr2WTaV) tensile specimen irradiated in liquid Lead-Bismuth-Eutectic After 12 dpa (2 years of irradiation) at 210 to 250°C: NO severe LBE corrosion and NO LBE embrittlement effects Yong Dai et al. Paul Scherrer Institut • 5232 Villigen PSI ESS Bilbao WS, March 16-19, 2009 / W. Wagner
  • 12. PAUL SCHERRER INSTITUT outline • The SINQ solid target – from early achievments to routine operation • The MEGAPIE „adventure“ Paul Scherrer Institut • 5232 Villigen PSI ESS Bilbao WS, March 16-19, 2009 / W. Wagner
  • 13. PAUL SCHERRER INSTITUT MEGAPIE A liquid metal target for SINQ MEGAwatt Pilot Experiment: Joint international initiative to design, build, licence, operate and explore a liquid metal*) spallation target for 1 MW beam power *) Lead-Bismuth-Eutectic (LBE) Tm=125oC Goals of MEGAPIE: Increase the neutron flux at SINQ Demonstrate the feasibility of a liquid metal target for high-power spallation and ADS applications Initiated by Günter Bauer, managed and conducted by Friedrich Gröschel, Knud Thomsen et al. 16-19, 2009 / W. Wagner Paul Scherrer Institut • 5232 Villigen PSI ESS Bilbao WS, March
  • 14. 2006: MEGAPIE (Flüssigmetalltarget) PAUL SCHERRER INSTITUT MEGAPIE target Vertical Section of the SINQ Facility Paul Scherrer Institut • 5232 Villigen PSI ESS Bilbao WS, March 16-19, 2009 / W. Wagner
  • 15. PAUL SCHERRER INSTITUT MEGAPIE target features target lower target head assembly central flow guide tube electro- magnetic pumps safety heat beam hull exchanger window Paul Scherrer Institut • 5232 Villigen PSI ESS Bilbao WS, March 16-19, 2009 / W. Wagner
  • 16. PAUL SCHERRER INSTITUT System integration in SINQ (Jan.– July 2006) Cover gas handling system LBE filling system Target head Heat removal system Insulation gas system (oil loop) Paul Scherrer Institut • 5232 Villigen PSI ESS Bilbao WS, March 16-19, 2009 / W. Wagner
  • 17. PAUL SCHERRER INSTITUT MEGAPIE Target Operation: full history On beam: August 14 – December 21, 2006 • Accumulated charge: 2.8 Ah 1400 µA • Peak Current: • Beam trips (< 1 min): 5500 • Interrupts (< 8 h): 570 First protons on target August 14, 2006 First protons on target, August 14 Paul Scherrer Institut • 5232 Villigen PSI ESS Bilbao WS, March 16-19, 2009 / W. Wagner
  • 18. PAUL SCHERRER INSTITUT THX inlet Low beam 150 A Paul Scherrer Institut • 5232 Villigen PSI ESS Bilbao WS, March 16-19, 2009 / W. Wagner
  • 19. PAUL SCHERRER INSTITUT Target temperatures at full beam Oil outlet: Cover gas: 226 C        210 C        THX inlet: 315 C        THX outlet: 229 C        Beam current: 1274 mA Spallation zone outlet: 340 C        Spallation zone inlet: 280 C        Paul Scherrer Institut • 5232 Villigen PSI ESS Bilbao WS, March 16-19, 2009 / W. Wagner
  • 20. PAUL SCHERRER INSTITUT Temperature transients during beam trips LBE: in main guide LBE: THX inlet LBE: lower main guide LBE: THX outlet Proton beam Oil: THX inlet scrutinize / validate the thermo-hydraulic simulations Paul Scherrer Institut • 5232 Villigen PSI ESS Bilbao WS, March 16-19, 2009 / W. Wagner
  • 21. New safety- and diagnostic devices PAUL SCHERRER INSTITUT VIMOS: beam footprint visualization system Collimating slit in proton beamline LBE leak detector Knud Thomsen et al Paul Scherrer Institut • 5232 Villigen PSI ESS Bilbao WS, March 16-19, 2009 / W. Wagner
  • 22. Results PAUL SCHERRER INSTITUT Neutron fluxes with MEGAPIE Flux gain by measured by Au foil activation (in neutrons/cm2/s/mA) MEGAPIE Err. Err. MEGAPIE SINQ ratio 2005 (%) (%) 2006 ICON 3.80E+8 ~5 6.89E+8 ~5 1.81 NEUTRA 2.59E+7 ~5 4.80E+7 ~5 1.85 EIGER 6.46E+8 ~5 1.04E+9 ~5 1.61 NAA 5.82E+12* ~5 1.04E+13 ~5 1.79 Markus Luethy Paul Scherrer Institut • 5232 Villigen PSI ESS Bilbao WS, March 16-19, 2009 / W. Wagner
  • 23. PAUL SCHERRER INSTITUT Understanding the flux gain Canneloni (with STIP) MEGAPIE Mark III (current) Megapie • Compaction of reaction zone, no D2O, no steel and no empty volumes • by that: ‚pushing out‘ the flux maximum • and: no proton energy loss in water • no STIP samples Luca Zanini et al. Paul Scherrer Institut • 5232 Villigen PSI ESS Bilbao WS, March 16-19, 2009 / W. Wagner
  • 24. PAUL SCHERRER INSTITUT outline • The SINQ solid target – from early achievments to routine operation • The MEGAPIE „adventure“ • Recent improvements of the solid target Paul Scherrer Institut • 5232 Villigen PSI ESS Bilbao WS, March 16-19, 2009 / W. Wagner
  • 25. PAUL SCHERRER INSTITUT Improvement options for the canneloni target • Zr cladding (replacing steel) Scetch from Knud Thomsen Paul Scherrer Institut • 5232 Villigen PSI ESS Bilbao WS, March 16-19, 2009 / W. Wagner
  • 26. PAUL SCHERRER INSTITUT Zr-clad rods …after 2 years in SINQ (>10Ah of accumulated proton charge): Zr-clad rod: visual inspection Paul Scherrer Institut • 5232 Villigen PSI ESS Bilbao WS, March 16-19, 2009 / W. Wagner
  • 27. PAUL SCHERRER INSTITUT Improvement options for the canneloni target (predicted) gain • Zr cladding (replacing 10-13% steel) done! • compaction: closer rod- 5% packing (2mm gap 1mm), oval rod shape ? • thinner tube wall 5% (0.75 mm 0.5 mm) Scetch from Knud Thomsen • Pb-reflectors filling the 10% gap around the canneloni structure • inverted calotte of 5% safety hull • No (or less) STIP 10% samples ∼45% Michael Wohlmuther, Luca Zanini/ etWagner ESS Bilbao WS, March 16-19, 2009 W. al. Paul Scherrer Institut • 5232 Villigen PSI
  • 28. Compact PAUL SCHERRERtarget cannelloni INSTITUT Paul Scherrer Institut • 5232 Villigen PSI ESS Bilbao WS, March 16-19, 2009 / W. Wagner
  • 29. PAUL SCHERRER INSTITUT The new Zr-Pb cannellomi target for SINQ Status: ready to be operated starting April 2009 Paul Scherrer Institut • 5232 Villigen PSI ESS Bilbao WS, March 16-19, 2009 / W. Wagner
  • 30. PAUL SCHERRER INSTITUT ! quot; #$ Paul Scherrer Institut • 5232 Villigen PSI ESS Bilbao WS, March 16-19, 2009 / W. Wagner
  • 31. PAUL SCHERRER INSTITUT quot; % & ' ( !)* % + , - ( . % /( % 0 ! Paul Scherrer Institut • 5232 Villigen PSI ESS Bilbao WS, March 16-19, 2009 / W. Wagner
  • 32. PAUL SCHERRER INSTITUT Basic technical parameters: Modular design allowing testing of different concepts of the THX, EMP, BEW Existing EMP (prototype of EMP1 for MEGAPIE) is adopted for the mock-up – Working fluid PbBi eutectic (melting temp. 126°C) or Pb (327°C), volume 65 l ° Maximum operation temperature – 500°C Electric heater – 170 kW (former MEGAPIE test heater) Michael Wohlmuther et al. Paul Scherrer Institut • 5232 Villigen PSI ESS Bilbao WS, March 16-19, 2009 / W. Wagner
  • 33. PAUL SCHERRER INSTITUT Distribution of shear stress Paul Scherrer Institut • 5232 Villigen PSI ESS Bilbao WS, March 16-19, 2009 / W. Wagner
  • 34. PAUL SCHERRER INSTITUT 1 0 • Neutronics and target optimization: – Michael Wohlmuther, Luca Zanini, Daniela Kiselev, Markus Luethy,… • Liquid metal targets: – Friedrich Groeschel, Michael Wohlmuther, Sergej Dementjev, Karel Samec, Rade Milenkovic, Jacek Patorski et al. • Materials research: – Yong Dai et al. • SINQ target management and operation: – Hajo Heyck, Kurt Geissmann, Frank Heinrich and the operation team • Knud Thomsen for always bringing-in good ideas Paul Scherrer Institut • 5232 Villigen PSI ESS Bilbao WS, March 16-19, 2009 / W. Wagner