low power rf tests (2) in s1-g
DESCRIPTION
Low Power RF Tests (2) in S1-G. Low power rf tests in S1-G. Cryomodule-A . Stroke and hysteresis of piezo tuner . Single pulse response of piezo tuner . Stability of frequency . Reproducibility . Mechanical vibration. Cryomodule-A&C . HOM external Q. Cryomodule-A&C - PowerPoint PPT PresentationTRANSCRIPT
E. KAKO (KEK) 2010' July 13 S1-G@Webex meeting
Global Design Effort
1
Low Power RF Tests (2) in S1-G
E. KAKO (KEK) 2010' July 13 S1-G@Webex meeting
Global Design Effort
2
Low power rf tests in S1-GCryomodule-A . Stroke and hysteresis of piezo tuner. Single pulse response of piezo tuner. Stability of frequency. Reproducibility. Mechanical vibration
Cryomodule-A&C. Multi-pulse response of piezo tuner. Mechanical vibration. Damping of mechanical vibration modes
Measurement time at 2 K ; Tue. – Fri. for 4 days 13:00 ~ 19:00 for 6 h 24 h per week
Cryomodule-A&C. HOM external Q
E. KAKO (KEK) 2010' July 13 S1-G@Webex meeting
Global Design Effort
3
Blade Tuner for FNAL Cavities
C2/ACC011 cavity
Blade tuner does not work.One piezo does not go > +110V.
E. KAKO (KEK) 2010' July 13 S1-G@Webex meeting
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4
Blade Tuner for FNAL Cavities
E. KAKO (KEK) 2010' July 13 S1-G@Webex meeting
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5
Slide-Jack Tuner for KEK Cavities
A4/MHI-09 cavity
Slide-Jack tuner does not work.
E. KAKO (KEK) 2010' July 13 S1-G@Webex meeting
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6
Hysteresis of Piezo Tuner (Cryo-A)
Static Performance of Piezo Tuner (A#2)
1300.02530
1300.02540
1300.02550
1300.02560
1300.02570
1300.02580
1300.02590
1300.02600
0 100 200 300 400 500
Piezo Voltage [V]
freq
uenc
y [M
Hz]
1st cycle
2nd cycle
3rd cycle
Static Performance of Piezo Tuner (A#4)
1299.95670
1299.95680
1299.95690
1299.95700
1299.95710
1299.95720
1299.95730
1299.95740
1299.95750
1299.95760
0 100 200 300 400 500
Piezo Voltage [V]
freq
uenc
y [M
Hz]
1st cycle
2nd cycle
3rd cycle
Static Performance of Piezo Tuner (A#1)
1300.00630
1300.00640
1300.00650
1300.00660
1300.00670
1300.00680
1300.00690
1300.00700
0 100 200 300 400 500
Piezo Voltage [V]
freq
uenc
y [M
Hz]
1st cycle
2nd cycle
3rd cycle
Static Performance of Piezo Tuner (A#3)
1300.01010
1300.01015
1300.01020
1300.01025
1300.01030
1300.01035
1300.01040
1300.01045
0 100 200 300 400 500
Piezo Voltage [V]
freq
uenc
y [M
Hz]
1st cycle
2nd cycle
100Hz/div100Hz/div
100Hz/div
50Hz/div
Network Analyzer (Vpiezo = 0 ~ +500V)
250Hz
250Hz
400Hz
450Hz
E. KAKO (KEK) 2010' July 13 S1-G@Webex meeting
Global Design Effort
7
Reproducibility of Piezo Tuner (Cryo-A)
Static Performance of Piezo Tuner (A#4)
1299.95640
1299.95650
1299.95660
1299.95670
1299.95680
1299.95690
1299.95700
1299.95710
1299.95720
1299.95730
0 2 4 6 8 10 12
# of Cycle [count]
freq
uenc
y [M
Hz]
Static Performance of Piezo Tuner (A#3)
1300.01000
1300.01005
1300.01010
1300.01015
1300.01020
1300.01025
1300.01030
1300.01035
1300.01040
1300.01045
0 2 4 6 8 10 12
# of Cycle [count]
freq
uenc
y [M
Hz]
Static Performance of Piezo Tuner (A#2)
1300.02450
1300.02460
1300.02470
1300.02480
1300.02490
1300.02500
1300.02510
1300.02520
0 2 4 6 8 10 12
# of Cycle [count]
freq
uenc
y [M
Hz]
Static Performance of Piezo Tuner (A#1)
1300.00610
1300.00615
1300.00620
1300.00625
1300.00630
1300.00635
1300.00640
1300.00645
1300.00650
1300.00655
0 2 4 6 8 10 12
# of Cycle [count]
freq
uenc
y [M
Hz]
50Hz/div
50Hz/div 100Hz/div
100Hz/div
Network Analyzer (10 cycles, Vpiezo = 0 ~ +500V)
250Hz
250Hz
400Hz
450Hz
<100Hz
<100Hz
<100Hz
<100Hz
E. KAKO (KEK) 2010' July 13 S1-G@Webex meeting
Global Design Effort
8
A1 (MHI#5)
-10
0
10
20
0 50 100 150 200 250
Time [min.]
Δf
[Hz]
A2 (MHI#6)_E8363B
1300.025520
1300.025530
1300.025540
1300.025550
1300.025560
1300.025570
1300.025580
1300.025590
1300.025600
1300.025610
1300.025620
0 50 100 150 200 250
Time [min.]
f0 [
MH
z]
A3 (MHI#7)_E5061B
1300.011170
1300.011180
1300.011190
1300.011200
1300.011210
1300.011220
1300.011230
1300.011240
1300.011250
0 50 100 150 200 250
Time [min.]
f0 [
MH
z]
A4 (MHI#9)_E5062A
1299.960300
1299.960350
1299.960400
1299.960450
1299.960500
1299.960550
1299.960600
0 50 100 150 200 250
Time [min.]
f0 [
MH
z]
Stability of Frequency (Cryo-A)
20Hz
20Hz
60Hz200Hz
Network Analyzer (40GHz)
Network Analyzer (3GHz) Network Analyzer (3GHz)
He press.
3.140
3.150
3.160
3.170
3.180
3.190
3.200
3.210
3.220
3.230
3.240
0 50 100 150 200 250
Time [min.]
He
Pre
ss.[
kPa]
0.01 kPa/div.
0.1kPa
E. KAKO (KEK) 2010' July 13 S1-G@Webex meeting
Global Design Effort
9
A4 (MHI#9) frequency shift @ 1299[MHz]
958000
958100
958200
958300
958400
958500
958600
0 50 100 150 200 250 300 350 400 450 500
Vpiezo [V]
Fre
qu
ency
[H
z]
1st cycle
2nd cycle
A3 (MHI#7) frequency shift @ 1300[MHz]
11200
11250
11300
11350
11400
11450
11500
0 50 100 150 200 250 300 350 400 450 500
Vpiezo [V]
Fre
qu
ency
[H
z]
1st cycle
2nd cycle
A2 (MHI#6) ) frequency shift @ 1300[MHz]
25850
25900
25950
26000
26050
26100
26150
26200
26250
26300
26350
0 50 100 150 200 250 300 350 400 450 500
Vpiezo [V]
Fre
qu
ency
[H
z]
1st cycle
2nd cycle
A1 (MHI#5) ) frequency shift @ 1300[MHz]
7400
7450
7500
7550
7600
7650
7700
0 50 100 150 200 250 300 350 400 450 500
Vpiezo [V]
Fre
qu
ency
[H
z]
Hysteresis of Piezo Tuner (Cryo-A)
50Hz/div 50Hz/div
100Hz/div
50Hz/div
50W RF Amp. + PLL (Vpiezo = 0 ~ +500V)
200Hz
200Hz
350Hz
450Hz
E. KAKO (KEK) 2010' July 13 S1-G@Webex meeting
Global Design Effort
10
Pulse Response by Pezo Tuner (Cryo-A)
Piezo Drive Frequency = 250 Hz
Pt
Piezo Drive Pulse(freq., Vpp)
Single Pulse Response(parameters ; frequency ; amplitude ; delay time)
E. KAKO (KEK) 2010' July 13 S1-G@Webex meeting
Global Design Effort
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Mechanical Vibration Modes (Cryo-A)
A1 (MHI#5)
0
200
400
600
800
1000
1200
1400
1600
1800
0.0 100.0 200.0 300.0 400.0 500.0 600.0
Piezo Freq. [Hz]
Δψ
pp [
mV
]
A2 (MHI#6)
0
200
400
600
800
1000
1200
1400
1600
1800
2000
0.0 100.0 200.0 300.0 400.0 500.0 600.0
Piezo Freq. [Hz]
Δψ
pp [
mV
]
A3 (MHI#7)
0
500
1000
1500
2000
2500
3000
0.0 100.0 200.0 300.0 400.0 500.0 600.0
Piezo Freq. [Hz]
Δψ
pp [
mV
]
300W RF Amp., Vpp (f) = +200V (CW)
227Hz
571Hz382Hz
318Hz 521Hz
330Hz
536Hz
351Hz246Hz
PtVpp (f)= 0 - 200V
54, 204, 376, 548 Hz in Simulation
E. KAKO (KEK) 2010' July 13 S1-G@Webex meeting
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