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Cryomodule for Crab Cavity Tests with SPS

Cryomodule for Crab Cavity Tests with SPS. Shrikant Pattalwar Accelerator Science and Technology C entre STFC Daresbury Laboratory, UK. 3rd Annual Hi-Lumi Meeting Nov 11-15, 2013, Daresbury. Acknowledgements. This presentation is on behalf of the members of the Global WP4 team .

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Cryomodule for Crab Cavity Tests with SPS

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  1. Cryomodule for Crab Cavity Tests with SPS Shrikant Pattalwar Accelerator Science and Technology Centre STFC Daresbury Laboratory, UK 3rd Annual Hi-Lumi Meeting Nov 11-15, 2013, Daresbury

  2. Acknowledgements This presentation is on behalf of the members of the Global WP4 team STFCASTeC, Technology, University of Lancaster CERN Various Departments LARPODU+SLAC, BNL, FNAL Shrikant Pattalwar 3rd Annual Hi-Lumi Meeting Nov 11-15, 2013 Daresbury

  3. Contents • Factors Influencing Design Requirements • Achievements so far … • Concept designs for Helium Vessel and Cryomodule • Work in Progress • Future Plans • Conclusion Shrikant Pattalwar 3rd Annual Hi-Lumi Meeting Nov 11-15, 2013 Daresbury

  4. Requirements Requirements for the cryomodule are influenced by various Factors • Operating Temperature • Magnetic shielding • Helium Vessel • Couplers and Interfaces • Tuner mechanism • Dynamic Heat Load • …. • Two beam pipes • Heat load due to beams • Helium Vessel Geometry • Internal Layout • …. • External Geometry • Third beam pipe ( SPS Bypass) • Coupler Orientations • Integration with Infrastructure • Operation 1. Cavity 3. SPS Layout 2. LHC Talk # 100 by Alick Mcpherson # 106 by Ofelia Capatina Talk # 92 by Rama Calaga and # 95 Alex Ratti Shrikant Pattalwar 3rd Annual Hi-Lumi Meeting Nov 11-15, 2013 Daresbury

  5. Requirements continued • Cooling Capacity at various temperatures • Cooling Processes • Ports and Interfaces • Operating modes • Mechanical Design • Safety and Pressure Relief • Volumes, pipe sizes • Methods of QC/QA 5. Regulations and directives 4. Cryogenic Services 6. Other • Intermediate Tests (SM18) • Assembly Procedures • Instrumentation • Cost • R&D needs Talk # 105 by Ofelia Capatina Talk # 102 by Laurent Tavian Shrikant Pattalwar 3rd Annual Hi-Lumi Meeting Nov 11-15, 2013 Daresbury

  6. Helium Vessel UK 4-Rod Cavity Cavity in He Vessel Parts of the Vessel LHC (dummy) beam pipe SPS beam pipe Courtesy : Graeme Burt and Ben Hall, ULAN Saclay-II type tuner Shrikant Pattalwar 3rd Annual Hi-Lumi Meeting Nov 11-15, 2013 Daresbury

  7. Fully Assembled Cavity String (4R) OVC to coupler ISO K 500 spool pieces 2 Phase He line LHe level probes Top fill LHe line Bottom fill LHe line Cryoperm magnetic shields Motor magnetic shield Tuners Pipework for liquid nitrogen connections Courtesy : Tom Jones (STFC) Thermometry and wiring for entire string Shrikant Pattalwar 3rd Annual Hi-Lumi Meeting Nov 11-15, 2013 Daresbury

  8. Helium Vessel ODU Dipole cavity BNL Double QW cavity Courtesy : Ofelia capatina (CERN) Courtesy : HyeKyoung Park (ODU) Shrikant Pattalwar 3rd Annual Hi-Lumi Meeting Nov 11-15, 2013 Daresbury

  9. Cryomodule Schematic (P&ID) Courtesy : Andy May (ASTeC) Shrikant Pattalwar 3rd Annual Hi-Lumi Meeting Nov 11-15, 2013 Daresbury

  10. Cryomodule Concept Additional ports for LOM extraction/instrumentation 1520mm Cryogenics interface 800mm 2150mm • Design features • simplifies the assembly procedures • provides sufficient access to internal components during assembly and after installation • FPC is used as the main support for the cavity string. 2mm thick Mu Metal Magnetic shield 1050 Aluminium Thermal shield (80K) Cooling loop TBD More details in - Conceptual design of a Cryomodule for Crab Cavities for HiLumi-LHC S. Pattalwar, et al, MOP 087, SRF 2013, Paris Module positioning system Shrikant Pattalwar 3rd Annual Hi-Lumi Meeting Nov 11-15, 2013 Daresbury

  11. Compatibility with SPS Infrastructure Requirements Concept Design Shrikant Pattalwar 3rd Annual Hi-Lumi Meeting Nov 11-15, 2013 Daresbury

  12. Assembly Sequence – Proposal 1 (Side Loading) • Clean Room Operations • Assemble cavity string • Couplers assembled at 90o • Beam pipe closed with gate Valves Align the string with the vacuum chamber • Outside the clean Room • Load the cavity String from Side 4. Lift and assemble with top plate of the vacuum chamber Shrikant Pattalwar 3rd Annual Hi-Lumi Meeting Nov 11-15, 2013 Daresbury

  13. Final Assembly Mu Metal magnetic shield (blue). ISO K clamp 80K thermal shield (green). 20mm allocated for MLI 300K 80K Shrikant Pattalwar 3rd Annual Hi-Lumi Meeting Nov 11-15, 2013 Daresbury

  14. Assembly Sequence – Proposal 2 (Top Loading Clean room Operations Cavity, Coupler and Beam pipe Outside the clean Room Mounting on the top plate 4 Load from the top into the vacuum chamber 3 Outside the clean Room Assembly of the cold parts Courtesy : Ofelia capatina (CERN) Shrikant Pattalwar 3rd Annual Hi-Lumi Meeting Nov 11-15, 2013 Daresbury

  15. Final Assembly (Top Loading ) Shrikant Pattalwar 3rd Annual Hi-Lumi Meeting Nov 11-15, 2013 Daresbury

  16. Cryomodule in SPS RF Input • The design appraocah • simplifies the assembly procedures • provides sufficient access to internal components during assembly and after installtion • reduces overall manufacturing cost Cryo services Sliding support table Conclusion First level constraints defined by SPS layout have been successfully overcome Shrikant Pattalwar 3rd Annual Hi-Lumi Meeting Nov 11-15, 2013 Daresbury

  17. Common Design Approach UK 4-Rod • Conclusion – • A common design approach to accommodate all the 3 cavity designs has been successfully developed. • External Envelope • Cryogenic Interface • Cryogenic Process • Alignment (external and Internal) • ……. • Challenges – • Couplers and Tuners and their locations for the three designs are different. US Double QW US Dipole For illustration only Shrikant Pattalwar 3rd Annual Hi-Lumi Meeting Nov 11-15, 2013 Daresbury

  18. Work In Progress • Coupler designs for HOMs and LOMs and their integration with Infrastructure • Magnetic Shielding • Alignment • Integration with Cryogenics and heat load management • Switch over with the SPS BY-PASS or with other cryomodule • Safety , Pressure Vessel Regulations etc. • Tests at SM-18 • ........................ • ........................ Shrikant Pattalwar 3rd Annual Hi-Lumi Meeting Nov 11-15, 2013 Daresbury

  19. Heat Load Budget Shrikant Pattalwar 3rd Annual Hi-Lumi Meeting Nov 11-15, 2013 Daresbury

  20. Compliance with Regulations - PED Category 0 for LHC Category 1 for SPS tests Max Pressure 5 bar?? CC in LHC Pmax 0.5 bar Max pipe diameter (ID) < 25 mm Maximum LHe volume < 100 L Maximum Operating Pressure 0.8 barG Max He pressure 0.43 barG Shrikant Pattalwar 3rd Annual Hi-Lumi Meeting Nov 11-15, 2013 Daresbury

  21. Future Plan (Expectations) March 2014 Manufacturing Commissioning Acceptance Tests Concept Design Engineering Design Jan 2016 Shrikant Pattalwar 3rd Annual Hi-Lumi Meeting Nov 11-15, 2013 Daresbury

  22. Conclusion First level constraints defined by SPS layout have been successfully overcome A common design approach to accommodate any of the 3 cavity designs has been successfully developed Overall design process is at an advance stage . Most of the remaining issues are well understood and solutions are being worked out through collaborative efforts WP4 Global collaboration is working well and advancing in a right direction Shrikant Pattalwar 3rd Annual Hi-Lumi Meeting Nov 11-15, 2013 Daresbury

  23. Thank You

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