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A_RD_03 R/D for the High Power Couplers for ILC

A_RD_03 R/D for the High Power Couplers for ILC. Walid KAABI (LAL-Orsay, France) Eiji KAKO (KEK, Japan). 1. Acknowledgements. LAL-Orsay Team; Alessandro VARIOLA, Mickael LACROIX, Alice THIEBAULT KEK-STF Team; Hitoshi HAYANO, Toshio SHISHDO,

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A_RD_03 R/D for the High Power Couplers for ILC

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  1. A_RD_03R/D for the High Power Couplersfor ILC Walid KAABI (LAL-Orsay, France) Eiji KAKO (KEK, Japan) FJPPL'2012 @ Clermont 1

  2. Acknowledgements • LAL-Orsay Team; • Alessandro VARIOLA, • Mickael LACROIX, • Alice THIEBAULT • KEK-STF Team; • Hitoshi HAYANO, • Toshio SHISHDO, • Ken WATANABE, • Yasuchika YAMAMOTO FJPPL'2012 @ Clermont 2

  3. Outline • Introduction • Activities of Input Couplers at LAL • Activities of Input Couplers at KEK • Plan of Coupler R & D in 2012’ • Summary FJPPL'2012 @ Clermont 3

  4. Introduction • Activities of Input Couplers at LAL • Activities of Input Couplers at KEK • Plan of Coupler R & D in 2012’ • Summary E. KAKO (KEK) 2012' May 28 FJPPL'2012 @ Clermont

  5. Introduction (1) KEK/ STF-1 Zo = 50 W Warm window Cold window f62 f62 Zo = 50 W Zo = 50 W LAL/ TTF-V FJPPL'2012 @ Clermont 5

  6. Introduction (2) LAL TTF-V couplers conditioned at KEK. FJPPL'2012 @ Clermont 6

  7. Introduction • Activities of Input Couplers at LAL • Activities of Input Couplers at KEK • Plan of Coupler R & D in 2012’ • Summary E. KAKO (KEK) 2012' May 28 FJPPL'2012 @ Clermont

  8. Coupler Activities at LAL (1) TTF-3 coupler • Working on TTF3 conditioning procedure improvement: • Decreasing time duration (handling, assembly and in-situ baking improvement) • Conditioning 2 coupler pairs in series • Delivering conditioned couplers for Flash machine-DESY. • Performing XFEL couplers Industrialisation phase. FJPPL'2012 @ Clermont 8

  9. Coupler Activities at LAL (2) Automation of coupler cleaning procedure: design of washing machine Ultrasonic cleaning: 1h • Reduce time procedure & work in hidden time • Improve procedure repeatability • Suppress pollution risk between the steps Drying cycle and cleaning quality test: 48h In situ backing: 75h FJPPL'2012 @ Clermont 9

  10. Coupler Activities at LAL (3) • The main coupler activity at LAL in the last two year: Contribution to the XFEL project by assuming the following tasks: • Industrial monitoring and coupler fabrication control at production sites. • RF conditioning of the 800 produced couplers at LAL. FJPPL'2012 @ Clermont 10

  11. Coupler Activities at LAL (4) • All process steps will take place in an ISO5 clean room (70 m2): • Leak test at reception, • Couplers in-situ baking (75h), • RGA connection and gas analysis (24h), • Antenna tuning, • RF conditioning (24 to 30h), • Pumping system removal and couplers disassembly, • Packaging in boxes and shipping. A 6-7 days process 8 couplers treated simultaneously. FJPPL'2012 @ Clermont 11

  12. Coupler Activities at LAL (5) Installation of an RF station delivering 5MW allowing 4 coupler pairs conditioning in the same time: FJPPL'2012 @ Clermont 12

  13. Introduction • Activities of Input Couplers at LAL • Activities of Input Couplers at KEK • Plan of Coupler R & D in 2012’ • Summary E. KAKO (KEK) 2012' May 28 FJPPL'2012 @ Clermont

  14. Coupler Activities at KEK (1) KEK-STF activities on cryomodule tests • STF - 0.5 : (2007) • 1 nine-cell cavity, 1 STF-1 coupler • STF - 1.0 : (2008) • 4 nine-cell cavities, 4 STF-1 couplers • S-1 Global : (2010) • 4 nine-cell cavities, 4 TTF-3 couplers, • + 4 nine-cell cavities, 4 STF-2 couplers • Quantum-Beam : (2012) • 2 nine-cell cavities, 2 STF-2 couplers • STF - 2 : (2014) • + 8 nine-cell cavities, 8 STF2 couplers FJPPL'2012 @ Clermont 14

  15. Coupler Activities at KEK (2) Two STF-2 couplers for S1-G (variable coupling) Four STF-1 couplers (fixed coupling) Eight STF-2 couplers for STF-2 #1 Six CW couplers for cERL FJPPL'2012 @ Clermont 15

  16. Coupler Activities at KEK (3) Assembly of capture cryomodule for QB accelerator (Oct. 2011) (Dec. 2011) E. KAKO (KEK) 2012' May 28 FJPPL'2012 @ Clermont

  17. Coupler Activities at KEK (4) KEK-STF Quantum-Beam Accelerator High-flux X-ray by Inverse-Compton scattering 10mA electron beam (40MeV, 1ms, 5Hz) Photo-cathode RF-gun Capture cryomodule ( two 9-cell cavities ) Collision point (Laser, electron beam) 2011, Dec : Cryomodule completed. 2012, Feb : Cool-down started, Mar : High power tests, Apr : First beam acceleration. FJPPL'2012 @ Clermont 17

  18. Coupler Activities at KEK (5) Comparison of cavity performance between V.T and C.T VT Results of MHI-12 and MHI-13 for Capture Cryomodule Vertical Test Cryomodule Test Operational Gradient E. KAKO (KEK) 2012' May 28 FJPPL'2012 @ Clermont

  19. Coupler Activities at KEK (6) STF-2 Project at KEK Capture Cryomodule (two 9-cell cavities) 2012’, Feb. Cool-down STF-2 #1 Cryomodule (eight 9-cell cavities) 2014’, Jan. Cool-down FJPPL'2012 @ Clermont 19

  20. Coupler Activities at KEK (7) High Pressure Gas Tests V.T results of 11 cavities for STF-2 Project 35 MV/m Capture Cryomodule STF-2 #1 Cryomodule STF-2 #2 Cryomodule Eight STF-2 couplers FJPPL'2012 @ Clermont 20

  21. Coupler Activities at KEK (8) Conditioning up to 200 kW (2 ms, 5 Hz), and 40 kW (CW) CW Input Couplers for cERL Injector Cryomodule (Apr. 2012) E. KAKO (KEK) 2012' May 28 FJPPL'2012 @ Clermont

  22. Introduction • Activities of Input Couplers at LAL • Activities of Input Couplers at KEK • Plan of Coupler R & D in 2012’ • Summary

  23. Plan of Coupler R/D in 2012’ • LAL : • Conditioning of XFEL couplers. • Automatic coupler cleaning machine. • Plasma cleaning of couplers. • KEK : • Beam operation of QB cryomodule. • Conditioning of 8 couplers for STF-2 #1. • Conditioning of cERL CW couplers at RT. • High power tests of cERL Injector module. FJPPL'2012 @ Clermont 23

  24. SUMMARY • Activities on coupler developments in • both LAL and KEK have been continued, • vigorously. • Collaborative work on coupler conditioning • was successfully carried out. • Discussion on the conditioning results • between LAL and KEK was very fruitful. FJPPL'2012 @ Clermont 24

  25. Thank you for your attention... FJPPL'2012 @ Clermont 25

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