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High Power Test @S1-Global ④

High Power Test @S1-Global ④. Process Log Data Summary of LFD Result of LFD Summary of LFD RF response @Quench. Kirk. Process Log of High Power Test ①. C1 Cavity. 10/5 13:00 Safety check for radiation in tunnel 13:05 HV ON / TRG ON / RF ON

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High Power Test @S1-Global ④

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  1. High Power Test @S1-Global ④ • Process Log • Data Summary of LFD • Result of LFD • Summary of LFD • RF response @Quench STF Cavity Group Meeting @2010/10/25 Kirk

  2. Process Log of High Power Test① C1 Cavity 10/5 13:00 Safety check for radiation in tunnel 13:05 HV ON / TRG ON / RF ON 13:48 Tuner set / RF conditioning of C1 starts 13:53 X-ray emits @13.3MV/m 17:14 RF Off by Arc #1 I/L @~217kW 17:32 pulse width of flat-top : 100μs  1000μs 17:52 RF Off by QL I/L @~28MV/m (Quench!) 17:56 RF Off by QL I/L @~28MV/m (Quench!) 18:00 F.B. ON 18:25 RF Off by Vac. I/L 18:33 LFD measurement by pulse shortening @27.2MV/m 18:59 RF Off by QL I/L @~28MV/m (Quench!) C1 : 27.2MV/m under condition of F.B. ON STF Cavity Group Meeting @2010/10/25

  3. Process Log of High Power Test② C1 Cavity 10/6 13:26 HV ON / TRG ON 13:35 RF ON 14:30 LFD measurement by FNAL starts Offset scanning / Delay scanning 18:30 Piezo compensation by FNAL system starts F.B. Off DAQ system did not work well. Retry tomorrow! 18:57 fin. STF Cavity Group Meeting @2010/10/25

  4. Process Log of High Power Test③ C1 Cavity  C4 Cavity 10/7 13:00 HV ON / TRG ON 13:07 RF ON Keep without F.B. @25MV/m 13:30 RF Off by unknown reason 14:30 Piezo compensation by FNAL system starts 15:30 Piezo compensation + F.B. ON by FNAL starts 15:50 Waveguide connection from C1 to C4 cavity 16:05 HV ON / TRG ON / RF ON 16:15 RF Off by QL I/L @~28MV/m (Quench!) 16:27 RF Off by QL I/L @~27MV/m (Quench!) 16:45 Piezo compensation by FNAL starts @28MV/m 17:52 Piezo compensation + F.B. ON by FNAL starts @27.4MV/m 18:55 fin. STF Cavity Group Meeting @2010/10/25

  5. Process Log of High Power Test④ C3 Cavity  C2 Cavity 10/8 9:30 Waveguide connection from C4 to C3 cavity 13:14 HV ON / TRG ON / RF ON 13:25 Piezo compensation by FNAL starts @18.9MV/m 14:15 F.B. ON 14:20 RF Off by QL I/L @~19MV/m (Quench!) 14:42 Piezo compensation + F.B. ON by FNAL starts @18.2MV/m 15:00 Waveguide connection from C3 to C2 cavity 15:16 HV ON / TRG ON / RF ON 15:20 Piezo compensation by FNAL starts @22.6MV/m 17:12 Piezo compensation + F.B. ON by FNAL starts @22.2MV/m 18:57 fin. STF Cavity Group Meeting @2010/10/25

  6. Process Log of High Power Test⑤ C1, 2 Cavities 10/14 13:00 HV ON / TRG ON / RF ON 14:16 Quench, but any I/L did not work, He pressure increasing QL I/L was not set! 14:33 RF On 14:36 Piezo compensation by FNAL starts 17:30 Piezo compensation + F.B. ON by FNAL starts But, system did not work well 18:55 fin. STF Cavity Group Meeting @2010/10/25

  7. Process Log of High Power Test⑥ C1, 2 Cavities  C3, 4 Cavities 10/15 9:30 Waveguide connection from C1, 2 to C3, 4 cavity 13:20 HV ON / TRG ON / RF ON C4 detuned for LFD measurement of C3 14:09 F.B. ON 14:18 Keep with F.B. ON @15MV/m 16:22 LFD measurement by FNAL starts 17:42 Change from C3 to C4 for LFD measurement C3 detuned, C4 tuned 17:57 LFD measurement by FNAL starts 18:51 fin. STF Cavity Group Meeting @2010/10/25

  8. Process Log of High Power Test⑦ A2 Cavity 10/13 9:35 Waveguide connection to A2(MHI#6) and C1(AES#4) cavities 12:50 Refrigerator ready 13:05 Safety check for radiation in tunnel 13:10 HV ON / TRG ON / RF ON 13:22 Tuner set / QL I/L worked (No I/L during tuner set) 13:44 RF conditioning of A2 (MHI#6) starts / Vac. I/L worked (3x10-5Pa) 14:00 RF Off by abnormal power supply of Klystron #2 Safety I/L by Door open in underground Safety check again 14:14 HV ON / TRG ON / RF ON 14:32 RF Off by Vac. I/L (Level set : 3x10-5Pa  2x10-4Pa) 15:18 RF Off by Arc #2 I/L @~35MV/m 15:37 RF Off by Arc #2 I/L @453kW 16:37 RF Off by Arc #2 I/L @453kW 17:07 RF Off by Vac. I/L @453kW 17:20 LFD measurement starts by FNAL @30MV/m 18:05 I/L Level set : 2x10-4Pa  3x10-4Pa 18:07 RF Off by QL I/L @40.0MV/m (Quench!) 18:29 tuner set 18:49 RF Off by QL I/L @37.7MV/m (Quench!) STF Cavity Group Meeting @2010/10/25 A2 : 40.0MV/m under condition of Piezo ON (by FNAL) and F.B. Off

  9. Process Log of High Power Test⑧ A3 Cavity 10/14 13:29 HV ON / TRG ON / Disable QL I/L 13:39 RF ON / tuner set RF conditioning of A3 (MHI#7) starts with pulse width = 100μsec 13:52 X-ray detected @13.4MV/m 13:57 RF Off by Arc #3 I/L (~100kW) 14:02 RF Off by Arc #3 I/L (~130kW) 14:03 RF Off by Arc #3 I/L (~135kW) 14:45 RF Off by Arc #3 I/L (~180kW) / Vac. I/L [3x10-4Pa  2x10-4Pa] 14:53 RF Off by Arc #3 I/L (~212kW) 14:56 RF Off by Arc #3 I/L (~224kW) 15:09 RF Off by Arc #3 I/L (~282kW) 15:18 RF Off by Arc #3 I/L (~330kW) 15:33 Quench with 100μs @33.5MV/m / RF Off by QL I/L 15:46 Quench with 100μs @33.5MV/m / RF Off by QL I/L 15:47 pulse width of flat-top : 100μs  1000μs 16:24 RF Off by Arc #3 I/L (~300kW) 16:31 Quench with 1000μs @31.3MV/m / RF Off by QL I/L 16:52 Quench with 1000μs @31.8MV/m / RF Off by QL I/L STF Cavity Group Meeting @2010/10/25

  10. Process Log of High Power Test⑨ A3 Cavity 10/14 17:00 F.B. ON 17:25 RF Off by QL I/L (Not Quench, due to noise) 17:28 RF Off by QL I/L (Not Quench, due to noise) 17:31 RF Off by QL I/L (Not Quench, due to noise) 17:40 RF Off by QL I/L (Not Quench, due to noise) [1.8x106 1.5x106] 17:56 RF Off by QL I/L @32MV/m 18:04 RF Off by QL I/L (Not Quench) [1.5x106 1.3x106] 18:14 LFD measurement by pulse shortening @31.7MV/m Miss-data taking due to cPCI1, not cPCI2 18:42 RF Off by Arc #2 I/L (~390kW) 18:45 2000 pulses stored under F.B. ON @31.7MV/m 18:57 fin. A3 : 31.7MV/m under condition of F.B. ON STF Cavity Group Meeting @2010/10/25

  11. Process Log of High Power Test⑩ A3 Cavity 10/15 13:35 HV ON / RF ON / QL I/L system renewal (but, not good) 14:20 LFD measurement by FNAL starts (Offset scanning) 15:34 Delay scanning starts @25MV/m 16:20 LFD measurement by FNAL finishes 13:46 RF Off by Vac. I/L 16:35 F.B. ON 17:09 RF Off by Arc #3 I/L 17:10 RF Off by QL I/L x 2 17:23 LFD measurement by pulse shortening @31.7MV/m 18:00 10,000 pulses data taking for A3 @31.7MV/m 18:51 fin. STF Cavity Group Meeting @2010/10/25

  12. Process Log of High Power Test⑪ 10/19 9:20 Waveguide connection from A3 to A1 cavity 13:00 Safety check for radiation in tunnel 13:17 HV ON / TRG ON / RF ON Abnormal tuner position on operation panel appears  Network error for IOC 13:33 A1(MHI#5) conditioning starts 13:51 electron detected from end of beampipe @8.6MV/m 13:59 RF Off by QL I/L 14:04 RF Off by QL I/L 14:11 RF off by Arc #1 14:13 RF Off by QL I/L @19.3MV/m 14:19 RF Off by Arc #1 @120kW 14:21 RF Off by Arc #1 @118kW 15:03 RF Off by Arc #1 @~140kW 15:13 RF Off by Arc #1 @154kW 15:35 RF Off by QL I/L 15:49 RF Off by Arc #1 x 2 16:09 RF Off by Arc #1 @215kW 16:18 RF Off by Arc #1 16:25 RF Off by Arc #1 16:40 RF Off by QL I/L 16:59 RF Off by QL I/L @29.0MV/m A1 Cavity STF Cavity Group Meeting @2010/10/25

  13. Process Log of High Power Test⑫ A1 Cavity 10/19 17:00 pulse width of flat-top : 100μs  1000μs 17:05 QL I/L : 0.8 x 106 1.3 x 106 17:30 RF Off by QL I/L (Quench) @27Mv/m 17:34 RF Off by QL I/L (Quench) @27Mv/m 17:36 RF Off by Arc #1 F.B. ON RF Off by Pf I/L 18:31 LFD measurement by pulse shortening @28.0MV/m 18:54 RF Off by QL I/L (Quench) @28.5Mv/m 18:56 fin. STF Cavity Group Meeting @2010/10/25

  14. Process Log of High Power Test⑬ A4 Cavity 10/20 9:20 Waveguide connection from A1 to A4 cavity 13:00 Safety check for radiation in tunnel Set f0 to 1299.900MHz, because of tuner trouble 13:17 HV ON / TRG ON / RF ON / QL I/L = 1.4 x 106 14:00 A4(MHI#9) conditioning starts 14:03 RF Off by QL I/L @10MV/m 14:10 RF off by Arc #4 @56kW 14:11 RF Off by QL I/L @13MV/m 14:14 RF off by Arc #4 @68kW 14:20 RF off by Arc #4 14:21 RF Off by QL I/L 14:14 RF off by Arc #4 14:42 RF off by Arc #4 x 4 15:13 RF Off by QL I/L x 4 @~23MV/m 15:25 pulse width of flat-top : 100μs  1000μs 15:48 RF off by Arc #4 16:13 RF Off by QL I/L @23.3MV/m 16:16 RF Off by QL I/L @23.3MV/m 16:18 RF Off by QL I/L @23.1MV/m Quench!! STF Cavity Group Meeting @2010/10/25

  15. Process Log of High Power Test⑭ A4 Cavity 10/20 16:22 F.B. ON (Not smooth introduction!) RF Off by Pf RF off by Arc #4 RF Off by Pf 16:36 RF Off by QL I/L @21.9MV/m 16:40 RF Off by QL I/L @21.4MV/m 16:44 RF Off by QL I/L 16:47 RF Off by QL I/L @20.9MV/m (Quench field gradually decreasing) 16:55 RF Off by QL I/L @20.2MV/m 17:03 LFD measurement by pulse shortening @19.1MV/m RF Off by QL I/L many times During measurement, liquid helium became empty, because A4 is set to downstream of CM-A Not continued to measure Restarting helium transfer, but taking long time 17:30 fin. STF Cavity Group Meeting @2010/10/25

  16. Process Log of High Power Test⑮ A4 Cavity 10/21 14:00 HV ON (Waiting longer than usual) 14:04 RF ON / F.B. ON / tuner set 14:19 TRG Off / HV Off (C4 had quench and helium pressure increased) 15:29 HV ON / TRG ON / RF ON / F.B. ON (wait for 1 hour) 15:37 RF Off by QL I/L @21.0MV/m 15:50 RF Off by QL I/L 16:04 RF Off by QL I/L (?) 16:21 RF Off by Pf 16:31 RF Off by QL I/L (?) 16:35 RF Off by Pf 16:38 RF Off by QL I/L (?) It is necessary to set lower gradient, once RF Off occurs 16:44 RF Off by QL I/L @24MV/m 17:10 LFD measurement by pulse shortening @23.3MV/m 17:39 15,000 pulses data taking @23.3MV/m 19:00 fin. STF Cavity Group Meeting @2010/10/25

  17. Process Log of High Power Test⑯ A2 Cavity 10/22 9:00 Waveguide connection from A4 to A2 cavity 9:40 Refrigerator trouble for turbine It was hard to recover it immediately Give up high power test today 10/25 12:00 Refrigerator system recovered! Operation restarts Cavities will reach 2K by 18:00 tomorrow STF Cavity Group Meeting @2010/10/25

  18. Comparison of Achievable Gradient between Vertical Test and Cryomodule Test STF Cavity Group Meeting @2010/10/25

  19. Evaluation for LFD @S1-Global • Pulse-cut method • １００パルスの平均値とR.M.S.から求める。 • flat-topのみと全パルス幅での時間領域に分けて評価する。 • 微分方程式から求めた結果と比較する。 • Brandt氏の方法による結果と比較する。 • Long time operation • 2,000パルスの結果からmicrophonicsの影響を評価する。 • 10,000(15,000)パルスの結果を用いて評価する（一部）。 • Q0測定中の長時間データから評価する（最適条件）。 • Piezoの有り無しでの変化を評価する。 • １空洞、４空洞、８空洞運転での変化を評価する。 STF Cavity Group Meeting @2010/10/25

  20. Data Summary of LFD @S1-Global① STF Cavity Group Meeting @2010/10/25

  21. Data Summary of LFD @S1-Global② ※A4空洞の10/20のデータは途中でヘリウムが無くなったため中断した。 STF Cavity Group Meeting @2010/10/25

  22. Result of LFD for AES#4 @S1-Global 27.2MV/m (F.B. ON) 336Hz 708Hz STF Cavity Group Meeting @2010/10/25

  23. Result of LFD for ACC#11 @S1-Global 22.0MV/m (F.B. ON) 230Hz 478Hz STF Cavity Group Meeting @2010/10/25

  24. Result of LFD for Z#108 @S1-Global 18.0MV/m (F.B. ON) 440Hz 245Hz STF Cavity Group Meeting @2010/10/25

  25. Result of LFD for Z#109 @S1-Global 29.2MV/m (F.B. ON) 1003Hz 552Hz STF Cavity Group Meeting @2010/10/25

  26. Result of LFD for MHI#5 @S1-Global 28.0MV/m (F.B. ON) 83Hz 436Hz STF Cavity Group Meeting @2010/10/25

  27. Result of LFD for MHI#6 @S1-Global 34.2MV/m (F.B. ON) 710Hz 710Hz 183Hz 183Hz STF Cavity Group Meeting @2010/10/25

  28. Result of LFD for MHI#7 @S1-Global 31.7MV/m (F.B. ON) 558Hz 131Hz STF Cavity Group Meeting @2010/10/25

  29. Result of LFD for MHI#9 @S1-Global 23.3MV/m (F.B. ON) 180Hz 399Hz STF Cavity Group Meeting @2010/10/25

  30. Summary of Lorentz Force Detuning STF Cavity Group Meeting @2010/10/25

  31. Comparison of LFD between Phase-1 and S1-Global STF Cavity Group Meeting @2010/10/25

  32. Long time operation for Z108 @15.0MV/m① 2,000パルスのデータを取得した。 F.B. ONで15.0MV/mキープ状態で 15分ほどの間に測定された結果。 （解析の際のfitting rangeは同じ） QLもΔfも共に安定している。 STF Cavity Group Meeting @2010/10/25

  33. Long time operation for Z108 @31.7MV/m② 2,000パルスのヒストグラムの結果。 STF Cavity Group Meeting @2010/10/25

  34. Long time operation for A3 @31.7MV/m① ~1.0hour 10,000パルスのデータを取得した。 F.B. ONで31.7MV/mキープ状態で １時間ほどの間に測定された結果。 （解析の際のfitting rangeは同じ） QLに関しては、徐々に減少していく様子が 見てとれる。数値が下がるということは、 パルスエンドの傾きがなだらかになっていく ことを意味する。何らかのノイズの影響が 入りこんでいるのか？ Δfの方も同様に中心値が下がっていく様子が 見てとれるが、たかだか10Hz程度である。 STF Cavity Group Meeting @2010/10/25

  35. Long time operation for A3 @31.7MV/m② 10,000パルスのヒストグラムの結果。 STF Cavity Group Meeting @2010/10/25

  36. Long time operation for A4 @23.3MV/m① 15,000パルスのデータを取得した。 1.5hour F.B. ONで23.3MV/mキープ状態で １時間半ほどの間に測定された結果。 （解析の際のfitting rangeは同じ） QLに関しては、徐々に減少していく様子が 今回も見てとれる。何か共通の原因が あるのか？ Δfの方は、振幅が徐々に拡がっていく様子が 見てとれる。この間のヘリウム圧はほぼ一定 であり、別なメカニズムに因り空洞周波数の 振る舞いが揺れ動いていることを意味する。 この振る舞いは前回には見られなかったもの である。 15,000パルスのデータを取っていた時間帯 STF Cavity Group Meeting @2010/10/25

  37. Long time operation for A4 @23.3MV/m② 15,000パルスのヒストグラムの結果。 STF Cavity Group Meeting @2010/10/25

  38. Long time operation for A4 @23.3MV/m③ STF Cavity Group Meeting @2010/10/25

  39. Long time operation for A4 @23.3MV/m④ STF Cavity Group Meeting @2010/10/25

  40. Long time operation for A4 @23.3MV/m⑤ STF Cavity Group Meeting @2010/10/25

  41. Long time operation for A4 @23.3MV/m⑥ STF Cavity Group Meeting @2010/10/25

  42. Long time operation for A4 @23.3MV/m⑦ 100パルス毎の重ね合わせ図 Eaccの変動はたかだか0.4%程度である VC Feedback systemはよく機能している STF Cavity Group Meeting @2010/10/25

  43. Long time operation for A4 @23.3MV/m⑧ 100パルス毎の重ね合わせ図 STF Cavity Group Meeting @2010/10/25

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