High Power Test @S1-Global ③

High Power Test @S1-Global ③

1STF Cavity Group Meeting @2010/10/18

Process Log Data Summary of LFD Result of LFD Summary of LFD RF response @Quench

Kirk

Process Log of High Power Test①


10/5 13:00 Safety check for radiation in tunnel13:05 HV ON / TRG ON / RF ON13:48 Tuner set / RF conditioning of C1 starts13:53 X-ray emits @13.3MV/m17:14 RF Off by Arc #1 I/L @~217kW17:32 pulse width of flat-top : 100μs 1000μs17:52 RF Off by QL I/L @~28MV/m (Quench!)17:56 RF Off by QL I/L @~28MV/m (Quench!)18:00 F.B. ON18:25 RF Off by Vac. I/L18:33 LFD measurement by pulse shortening @27.2MV/m18:59 RF Off by QL I/L @~28MV/m (Quench!)

C1 : 27.2MV/m under condition of F.B. ON

C1 Cavity

Process Log of High Power Test②


10/6 13:26 HV ON / TRG ON13:35 RF ON14:30 LFD measurement by FNAL starts

Offset scanning / Delay scanning18:30 Piezo compensation by FNAL system starts

F.B. OffDAQ system did not work well.Retry tomorrow!

18:57 fin.

C1 Cavity

Process Log of High Power Test③


10/7 13:00 HV ON / TRG ON13:07 RF ON

Keep without F.B. @25MV/m13:30 RF Off by unknown reason14:30 Piezo compensation by FNAL system starts15:30 Piezo compensation + F.B. ON by FNAL starts15:50 Waveguide connection from C1 to C4 cavity16:05 HV ON / TRG ON / RF ON16:15 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/m17:52 Piezo compensation + F.B. ON by FNAL starts @27.4MV/m18:55 fin.

C1 Cavity C4 Cavity

Process Log of High Power Test④


10/8 9:30 Waveguide connection from C4 to C3 cavity13:14 HV ON / TRG ON / RF ON13:25 Piezo compensation by FNAL starts @18.9MV/m14:15 F.B. ON14:20 RF Off by QL I/L @~19MV/m (Quench!)14:42 Piezo compensation + F.B. ON by FNAL starts @18.2MV/m15:00 Waveguide connection from C3 to C2 cavity15:16 HV ON / TRG ON / RF ON15:20 Piezo compensation by FNAL starts @22.6MV/m17:12 Piezo compensation + F.B. ON by FNAL starts @22.2MV/m18:57 fin.

C3 Cavity C2 Cavity

Process Log of High Power Test⑤


10/14 13:00 HV ON / TRG ON / RF ON14:16 Quench, but any I/L did not work, He pressure increasing

QL I/L was not set!14:33 RF On14:36 Piezo compensation by FNAL starts17:30 Piezo compensation + F.B. ON by FNAL starts

But, system did not work well18:55 fin.

C1, 2 Cavities

Process Log of High Power Test⑥


10/15 9:30 Waveguide connection from C1, 2 to C3, 4 cavity13:20 HV ON / TRG ON / RF ON

C4 detuned for LFD measurement of C314:09 F.B. ON14:18 Keep with F.B. ON @15MV/m16:22 LFD measurement by FNAL starts17:42 Change from C3 to C4 for LFD measurement

C3 detuned, C4 tuned17:57 LFD measurement by FNAL starts18:51 fin.

C1, 2 Cavities C3, 4 Cavities

Process Log of High Power Test⑦


10/13 9:35 Waveguide connection to A2(MHI#6) and C1(AES#4) cavities12:50 Refrigerator ready13:05 Safety check for radiation in tunnel13:10 HV ON / TRG ON / RF ON13:22 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 undergroundSafety check again

14:14 HV ON / TRG ON / RF ON14:32 RF Off by Vac. I/L (Level set : 3x10-5Pa 2x10-4Pa)15:18 RF Off by Arc #2 I/L @~35MV/m15:37 RF Off by Arc #2 I/L @453kW16:37 RF Off by Arc #2 I/L @453kW17:07 RF Off by Vac. I/L @453kW17:20 LFD measurement starts by FNAL @30MV/m18:05 I/L Level set : 2x10-4Pa 3x10-4Pa18:07 RF Off by QL I/L @40.0MV/m (Quench!)18:29 tuner set18:49 RF Off by QL I/L @37.7MV/m (Quench!)

A2 : 40.0MV/m under condition of Piezo ON (by FNAL) and F.B. Off

A2 Cavity

Process Log of High Power Test⑧


10/14 13:29 HV ON / TRG ON / Disable QL I/L13:39 RF ON / tuner set

RF conditioning of A3 (MHI#7) starts with pulse width = 100μsec

13:52 X-ray detected @13.4MV/m13:57 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/L15:46 Quench with 100μs @33.5MV/m / RF Off by QL I/L15:47 pulse width of flat-top : 100μs 1000μs16:24 RF Off by Arc #3 I/L (~300kW)16:31 Quench with 1000μs @31.3MV/m / RF Off by QL I/L16:52 Quench with 1000μs @31.8MV/m / RF Off by QL I/L

A3 Cavity

Process Log of High Power Test⑨


10/14 17:00 F.B. ON17:25 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/m18:04 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 cPCI218:42 RF Off by Arc #2 I/L (~390kW)18:45 2000 pulses stored under F.B. ON @31.7MV/m18:57 fin.

A3 : 31.7MV/m under condition of F.B. ON

A3 Cavity

Process Log of High Power Test⑩


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/m16:20 LFD measurement by FNAL finishes13:46 RF Off by Vac. I/L16:35 F.B. ON17:09 RF Off by Arc #3 I/L17:10 RF Off by QL I/L x 217:23 LFD measurement by pulse shortening @31.7MV/m18:00 10,000 pulses data taking for A3 @31.7MV/m18:51 fin.

A3 Cavity

STF Cavity Group Meeting @2010/10/18

10/19 9:20 Waveguide connection from A3 to A1 cavity13:00 Safety check for radiation in tunnel13:17 HV ON / TRG ON / RF ON

Abnormal tuner position on operation panel appears

Network error for IOC13:33 A1(MHI#5) conditioning starts13:51 electron detected from end of beampipe @8.6MV/m13:59 RF Off by QL I/L14:04 RF Off by QL I/L14:11 RF off by Arc #114:13 RF Off by QL I/L @19.3MV/m14:19 RF Off by Arc #1 @120kW14:21 RF Off by Arc #1 @118kW15:03 RF Off by Arc #1 @~140kW15:13 RF Off by Arc #1 @154kW15:35 RF Off by QL I/L15:49 RF Off by Arc #1 x 216:09 RF Off by Arc #1 @215kW16:18 RF Off by Arc #116:25 RF Off by Arc #116:40 RF Off by QL I/L16:59 RF Off by QL I/L @29.0MV/m

A1 Cavity

Process Log of High Power Test⑪

12


10/19 17:00 pulse width of flat-top : 100μs 1000μs17:05 QL I/L : 0.8 x 106 1.3 x 106

17:30 RF Off by QL I/L (Quench) @27Mv/m17:34 RF Off by QL I/L (Quench) @27Mv/m17:36 RF Off by Arc #1

F.B. ONRF Off by Pf I/L

18:31 LFD measurement by pulse shortening @28.0MV/m18:54 RF Off by QL I/L (Quench) @28.5Mv/m18:56 fin.

A1 Cavity

Process Log of High Power Test⑫

13

Evaluation for LFD @S1-Global


Pulse-cut method１００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 operation２０００パルスの結果からmicro phonicsの影響を評価する。

１０，０００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。

Data Summary of LFD @S1-Global①


Cavity Date Type Gradient F.B. Piezo # of pulse

C1 (AES#4) 2010/10/5

pulse-cut 27.2 ON Off 100

2010/10/7

FNAL 25.6 Off ON 100


FNAL 27.1 Off ON 2,000

FNAL 27.0 ON ON 100

27.0 ON Off 100

C2 (ACC#11) 2010/9/29


2010/10/8

FNAL 22.6 Off ON (no iter.)

2,000

FNAL 22.2 ON ON (no iter.)

2,000

C3 (ZANON#108)

2010/9/30


2010/10/8

FNAL 18.9 Off ON 2,000

FNAL 18.2 ON ON 2,000

2010/10/15

long time 15.0 ON Off 2,000

C4 (ZANON#109)

2010/10/1




FNAL 27.4 ON ON 2,000

25.0 ON Off 100

Data Summary of LFD @S1-Global②


Cavity Date Type Gradient F.B. Piezo # of pulse

A1 (MHI#5) 2010/10/19


A2 (MHI#6) 2010/9/24



A3 (MHI#7) 2010/10/14


2010/10/15



A4 (MHI#9) 2010/10/20

pulse-cut ON Off 100


Result of LFD for AES#4 @S1-Global

17

27.2MV/m (F.B. ON)

336Hz708Hz

Result of LFD for ACC#11 @S1-Global


18

Not analyzed yet

22.0MV/m (F.B. ON)

Result of LFD for Z#108 @S1-Global


19

Not analyzed yet

18.0MV/m (F.B. ON)


Result of LFD for Z#109 @S1-Global

20

29.2MV/m (F.B. ON)

552Hz1003Hz

Result of LFD for MHI#5 @S1-Global


21

Not measured yet



22

34.2MV/m (F.B. ON)

183Hz710Hz 183Hz710Hz



23

31.7MV/m (F.B. ON)

131Hz558Hz



24

Not measured yet

Summary of Lorentz Force Detuning


A1MHI#5

A2MHI#6

A3MHI#7

A4MHI#9

C1AES#4

C2ACC#11

C3ZANON

#108

C4ZANON

#109

Gradient [MV/m]

? 34.2(31.5)

31.7 ? 27.2 22.0 18.0 29.2

△fdetuned (total)

[Hz]

? 710 558 ? 708 1003

△fdetuned (only flat-

top) [Hz]

? 183 131 ? 336 552

QL(High Power)

[x106]

? 2.50 2.42 ? 2.32 2.43

QL(Low Power)

[x106]

2.41 2.41 2.40 2.41 2.40 2.40 2.41 2.40

Average[pulses]

100 100 100 100 100 100

RF response of Quench for A2 @40MV/m


26

RF response of Quench for A2 @40MV/m


27

Documents

High Power Test @S1-Global ③