1 / 24

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 .

verlee
Download Presentation

Cryomodule for Crab Cavity Tests with SPS

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  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

More Related