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ML Single Tunnel Cross Section GDE Asian Regional Team KEK A. Enomoto

ML Single Tunnel Cross Section GDE Asian Regional Team KEK A. Enomoto. Contents of Presentation Boundary condition for single tunnel design LHC , XFEL Example Asian Team Design status. Main Linac (ML) RF Unit in RDR - Double-tunnel accelerator configuration -. Service Tunnel.

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ML Single Tunnel Cross Section GDE Asian Regional Team KEK A. Enomoto

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  1. ML Single Tunnel Cross Section GDE Asian Regional Team KEK A. Enomoto

  2. Contents of Presentation • Boundary condition for single tunnel design • LHC , XFEL Example • Asian Team Design status

  3. Main Linac (ML) RF Unit in RDR- Double-tunnel accelerator configuration- Service Tunnel Input RF power: ~100 W Input DC pulse: 15.6 MW peak, 1.6 ms, 5 Hz Output RF pulse: 10 MW peak, 1.565 ms, 5 Hz Averaged output power: 78.25 kW Klystron Efficiency: 65% Power loss: 46.55 kW AC plug-in power: 150 kW Output pulse: 120 kV x 130 A = 15.6 MW peak, 1.6 ms, 5 Hz Averaged output power: 124.8 kW Modulator Efficiency: 83% Power loss: 25.2 kW Beam Tunnel Power Loss: ~5.6 kW (7%) 37.956 m e- ML 294 RF units e+ ML 290 RF units Total 584 RF units Field gradient: 31.5 MV/m Energy gain per RF unit : 850 MeV (with 22% tuning overhead)

  4. RDR ML RF Unit - Double Tunnel Section -

  5. RDR ML RF Unit - Service Tunnel- 35.10 m Thanks to the FNAL Facilities Engineering Services Section for AutoCAD data!

  6. Cryomodule Assembly with waveguides for DRFS(Beam Tunnel) (Drawing y Matsushita, KEK, RF group)

  7. Determination of Tunnel Diameter(for Single Tunnel in floor-mount DRFS) Space reservation for survey Clearance Height Transport Space

  8. ILC Cryomodule S1-Global Cryomodulesare compatible with each other.

  9. ILC Cryomodule 12-m cryostats are combined in tunnel to form a “string”.

  10. Ceiling CM ExampleEuro-XFEL @DESY XFEL Design Report

  11. Ceiling CM ExampleEuro-XFEL @DESY f5200 mm 645 mm XFEL Design Report

  12. Floor CM ExampleLHC f3800 Tunnel 2335 mm 1000 mm 1700 mm 870 mm CM diameter is almost the same!

  13. Floor CM ExampleLHC f3800 Tunnel

  14. Floor CM ExampleFNAL Project X Test Facility 1219 mm 1222 mm CM1_TUNNEL_XSEC (Materials from Jerry Leibfritz) 1846 mm 4826 mm

  15. Floor CM ExampleFNAL Project X Test Facility CM1_TUNNEL (Photos from Jerry Leibfritz)

  16. Discussion at KEK for the clearance from Tunnel Wall

  17. Current Conclusionfor Clearance from Tunnel Wall- Clearance ~500 mm is minimum

  18. Cryomodule Position (2)- Clearance from the Floor - Clearance ~960 mm @ Beamline height of ~1200 mm Vacuum pump space was discussed. The present space seems enough to have it under the module body.

  19. Space Reservation for Alignment

  20. Space Reservation for Alignment This area should be discussed with machine alignment people.

  21. Transport Space XFEL CM Transporter 1400 mm

  22. Transport Space Thanks to XFEL design team ! for STEP files to convert design data from IDEAS to INVENTOR. Parts files exceed more than 2600.

  23. Space Reservation for Alignment 1700 mm This area should be discussed with machine alignment people.

  24. Asian Team Design Status 3-D ML DRFS Tunnel Section

  25. DRFS Single Tunnel Section Dimension 500 mm 1800 mm aa

  26. DRFS 2-D Plan & Elevation

  27. Single Tunnel with RDR-HLRF

  28. Single Tunnel with RDR-HLRF

  29. Summary • Single tunnel configuration was discussed with the RDR-type HLRF system and with the DRFS type. • The ILC cryomodule positioning in the single tunnel was discussed referring to examples (XFEL, LHC, Project X, S1 Global) • Asian Team design with 3-D approach has been well progressed during the half period of FY2010.

  30. Boundary conditions and guidelines for design works APPENDIX

  31. ML Single-Tunnel Configuration- Distribute RF System (DRFS) - Beam Tunnel Power Loss: ~5.6 kW (7%) e- ML 282 RF units e+ ML 278 RF units Total 560 RF units Field gradient 31.5 MV/m Energy gain per RF unit 850 MeV (with 22% tuning overhead)

  32. ML RF Unit- Distributed RF System (DRFS) - 35.100 m Cooling Water Skid and Common Electricity X Alcove (Every 4th Units, 152 m) 1.6 m (W) ~5.4 m (L) (every 4th units) X X 2.438 m (H) 11.62 m 26.336 m (~70%) One big HV klystron replaced by 13 small klystrons Beam / Service Tunnel 37.956 m 11:30-12:00 Shigeki Fukuda, HLRF Requirements

  33. SafetyEuro-XFEL @DESY XFEL Design Report

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