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Characterisation Of The NA62 GigaTracker End OfColumn Readout ASIC
M. Noy1,a G. Aglieri Rinellaa M. Fiorinia P. Jarrona J. Kaplona
A. Klugea E. Martinb M. Morela L. Perktolda
aCERN, CH-1211 Geneva 23, Switzerland
bUniversite Catholique de Louvain 1, Place de l’Universite BE-1348 Louvain-la-Neuve
TWEPP-10.20th-24th September 2010
Aachen.
[email protected]. Noy (PH-ESE-FE, CERN) NA62 GTK EOC TWEPP-10. 21.09.2010 1 / 25
1 GTK Architecture and Requirements
2 Demonstrator ASIC
3 Testing Ethos and Methodology
4 ResultsTDC PerformanceTest Pixel PerformanceElectrical Charge Injection: ASIC Full Chain
5 Synopsis
M. Noy (PH-ESE-FE, CERN) NA62 GTK EOC TWEPP-10. 21.09.2010 2 / 25
GTK Architecture and Requirements
1 GTK Architecture and Requirements
2 Demonstrator ASIC
3 Testing Ethos and Methodology
4 ResultsTDC PerformanceTest Pixel PerformanceElectrical Charge Injection: ASIC Full Chain
5 Synopsis
M. Noy (PH-ESE-FE, CERN) NA62 GTK EOC TWEPP-10. 21.09.2010 2 / 25
GTK Architecture and Requirements
The GigaTracker
M. Noy (PH-ESE-FE, CERN) NA62 GTK EOC TWEPP-10. 21.09.2010 3 / 25
GTK Architecture and Requirements
Beam Profile
M. Noy (PH-ESE-FE, CERN) NA62 GTK EOC TWEPP-10. 21.09.2010 4 / 25
GTK Architecture and Requirements
Beam and Detector Profile
M. Noy (PH-ESE-FE, CERN) NA62 GTK EOC TWEPP-10. 21.09.2010 5 / 25
GTK Architecture and Requirements
GigaTracker Requirements
Radiation Environment 1014n cm−2 yr−1
Columns/Readout Chip 40Pixels/Column 45
Pixel Size 300µm x 300µmBeam Rate 800MHz → 1GHz
Dynamic Range ∼ 1fC → 10fCQMP 2.4 fC
Front End Peaking Time ∼ 4nsTime Binning ∼ 97 ps
Momentum Resolution 0.4%Efficiency ≥ 99%
M. Noy (PH-ESE-FE, CERN) NA62 GTK EOC TWEPP-10. 21.09.2010 6 / 25
Demonstrator ASIC
1 GTK Architecture and Requirements
2 Demonstrator ASIC
3 Testing Ethos and Methodology
4 ResultsTDC PerformanceTest Pixel PerformanceElectrical Charge Injection: ASIC Full Chain
5 Synopsis
M. Noy (PH-ESE-FE, CERN) NA62 GTK EOC TWEPP-10. 21.09.2010 6 / 25
Demonstrator ASIC
EoC Design Overview
x1x20x40
Final ASIC :
Hit Register 0
Hit Register 1
Hit Register 2
Hit Register 8
DLL
Co
un
ters
Co
arse
High Precision
Ser
ialis
atio
nR
ead
ou
t
Hit Arbiter
45:9
Single Test Column: 45 Pixels
Clock: 320MHz
9x 320Mbit/s
Pixel 44 Pixel 43 Pixel 42 Pixel 0
Final ASIC: x 40
4 x 1.5Gbit/s
2 x 3 Gbit/s
On−Chip Transmission lines
Final ASIC :
Pixel Array End Of Column
M. Noy (PH-ESE-FE, CERN) NA62 GTK EOC TWEPP-10. 21.09.2010 7 / 25
Demonstrator ASIC
EoC DLL-Based TDC
PhaseDetector
Charge Pump
DLL Clock
Leading
Trailing
Delay Line
Hit
Reg
iste
rs
#HITHIT
Speed Control
0 1 2 29 30 31
Early
Late
320MHz clock, 32 starved delay cells → 97 ps time bin.
M. Noy (PH-ESE-FE, CERN) NA62 GTK EOC TWEPP-10. 21.09.2010 8 / 25
Demonstrator ASIC
Time Over Threshold Time Walk Correction
1T T2
T0
ThresholdV
Time Walk
Time Over Threshold
DiscriminatorOutput
Pre−AmpOutput
Peaking Time = 4 ns
M. Noy (PH-ESE-FE, CERN) NA62 GTK EOC TWEPP-10. 21.09.2010 9 / 25
Demonstrator ASIC
EoC: Chip Top Level Layout
M. Noy (PH-ESE-FE, CERN) NA62 GTK EOC TWEPP-10. 21.09.2010 10 / 25
Demonstrator ASIC
EoC: Chip Top Level Layout
M. Noy (PH-ESE-FE, CERN) NA62 GTK EOC TWEPP-10. 21.09.2010 11 / 25
Demonstrator ASIC
EoC Chip
M. Noy (PH-ESE-FE, CERN) NA62 GTK EOC TWEPP-10. 21.09.2010 12 / 25
Demonstrator ASIC
EoC Assembly
M. Noy (PH-ESE-FE, CERN) NA62 GTK EOC TWEPP-10. 21.09.2010 13 / 25
Testing Ethos and Methodology
1 GTK Architecture and Requirements
2 Demonstrator ASIC
3 Testing Ethos and Methodology
4 ResultsTDC PerformanceTest Pixel PerformanceElectrical Charge Injection: ASIC Full Chain
5 Synopsis
M. Noy (PH-ESE-FE, CERN) NA62 GTK EOC TWEPP-10. 21.09.2010 13 / 25
Testing Ethos and Methodology
Mechanisms
Electrical20 fF Charge injection capacitor included in the pixelVoltage step induces charge injection at front end of 1 (or more)pixel(s)
Radioactive Source
Absolute gain calibration from pulse height spectra (analogue pixel)109Cd and 241Am γ emissions used
Laser Charge Injection
60 ps FWHM, 1060nm LaserLight pulse timing is good to ∼5 ps RMSspot size ∼10µm at focal distanceX-Y stage to scan laser spot across pixel matrix
Beam test
10GeV π+/p+ beam at PS (T9)4 cards placed in beam with GasTOFunderway now (16th → 29th September 2010)
M. Noy (PH-ESE-FE, CERN) NA62 GTK EOC TWEPP-10. 21.09.2010 14 / 25
Testing Ethos and Methodology
Mechanisms
Electrical20 fF Charge injection capacitor included in the pixelVoltage step induces charge injection at front end of 1 (or more)pixel(s)
Radioactive SourceAbsolute gain calibration from pulse height spectra (analogue pixel)109Cd and 241Am γ emissions used
Laser Charge Injection
60 ps FWHM, 1060nm LaserLight pulse timing is good to ∼5 ps RMSspot size ∼10µm at focal distanceX-Y stage to scan laser spot across pixel matrix
Beam test
10GeV π+/p+ beam at PS (T9)4 cards placed in beam with GasTOFunderway now (16th → 29th September 2010)
M. Noy (PH-ESE-FE, CERN) NA62 GTK EOC TWEPP-10. 21.09.2010 14 / 25
Testing Ethos and Methodology
Mechanisms
Electrical20 fF Charge injection capacitor included in the pixelVoltage step induces charge injection at front end of 1 (or more)pixel(s)
Radioactive SourceAbsolute gain calibration from pulse height spectra (analogue pixel)109Cd and 241Am γ emissions used
Laser Charge Injection60 ps FWHM, 1060nm LaserLight pulse timing is good to ∼5 ps RMSspot size ∼10µm at focal distanceX-Y stage to scan laser spot across pixel matrix
Beam test
10GeV π+/p+ beam at PS (T9)4 cards placed in beam with GasTOFunderway now (16th → 29th September 2010)
M. Noy (PH-ESE-FE, CERN) NA62 GTK EOC TWEPP-10. 21.09.2010 14 / 25
Testing Ethos and Methodology
Mechanisms
Electrical20 fF Charge injection capacitor included in the pixelVoltage step induces charge injection at front end of 1 (or more)pixel(s)
Radioactive SourceAbsolute gain calibration from pulse height spectra (analogue pixel)109Cd and 241Am γ emissions used
Laser Charge Injection60 ps FWHM, 1060nm LaserLight pulse timing is good to ∼5 ps RMSspot size ∼10µm at focal distanceX-Y stage to scan laser spot across pixel matrix
Beam test10GeV π+/p+ beam at PS (T9)4 cards placed in beam with GasTOFunderway now (16th → 29th September 2010)
M. Noy (PH-ESE-FE, CERN) NA62 GTK EOC TWEPP-10. 21.09.2010 14 / 25
Testing Ethos and Methodology
Testing Setup
EthernetSwitch
Chip CardChip
Pulse Generator
Lecroy
Oscilloscope
TEK
Ctrl/Config
Private TCP/IP Network
AFG3252
AlteraStratix III Dev Board
Clk320
Readout
SRS CG 635
CLK320
Synch.
SDA 13000
Linux PC
M. Noy (PH-ESE-FE, CERN) NA62 GTK EOC TWEPP-10. 21.09.2010 15 / 25
Testing Ethos and Methodology
Testing Setup
Y
X
EthernetSwitch
Chip CardChip
Lecroy
Oscilloscope
Private TCP/IP Network
AlteraStratix III Dev Board
WaveRunner104MXi−A
USB/RS232
Keithley 2410
Source Meter
Readout
Ctrl/Config
HV Bias
& Controllers
Zaber X and Y Stages
Laser Driver
Laser
Pulse Generator
TEK AFG3252
AttenuatorOptical
Discriminated
Output
Fibre
USB
USB
Clk Gen Clk320
LinuxPC
M. Noy (PH-ESE-FE, CERN) NA62 GTK EOC TWEPP-10. 21.09.2010 16 / 25
Results
1 GTK Architecture and Requirements
2 Demonstrator ASIC
3 Testing Ethos and Methodology
4 ResultsTDC PerformanceTest Pixel PerformanceElectrical Charge Injection: ASIC Full Chain
5 Synopsis
M. Noy (PH-ESE-FE, CERN) NA62 GTK EOC TWEPP-10. 21.09.2010 16 / 25
TDC Performance
Results TDC Performance
EoC TDC Non-Linearity
Differential:
Time Bin Interval0 5 10 15 20 25 30
DN
L (
LS
Bs)
-2
-1.5
-1
-0.5
0
0.5
1
1.5
2
RMS DNL = 0.17
Differential Nonlinearity
Integral:
Time Bin0 5 10 15 20 25 30
INL
(L
SB
s)-2
-1.5
-1
-0.5
0
0.5
1
1.5
2
RMS INL = 0.27
Integral Nonlinearity
DLL TDC Jitter = 7 ps
M. Noy (PH-ESE-FE, CERN) NA62 GTK EOC TWEPP-10. 21.09.2010 17 / 25
Test Pixel Performance
Results Test Pixel Performance
T1 RMS Jitter: Qin and Qth
Qin (fC)2 4 6 8 10
T1
RM
S J
itte
r (s
)
0
0.05
0.1
0.15
0.2
0.25
0.3-910×
T1 RMS Jitter vs Qin, Trise=2.5ns
Qth=0.5fCQth=0.6fC
Qth=0.7fCQth=0.8fCQth=0.9fC
T1 RMS Jitter vs Qin, Trise=2.5ns
Electrical charge injection.No detector∼ 40 ps RMS at 2.4 fCENC ∼ 130 e−
Estimated Charge (fC)0 2 4 6 8 10 12
T1
RM
S J
itte
r (s
)
0
0.05
0.1
0.15
0.2
0.25
0.3
0.35
0.4-910×
RMS T1 vs Estimated Q
Qth = 0.6fCQth = 0.7fC
Qth = 0.8fCQth = 0.9fC
RMS T1 vs Estimated Q
Laser Charge Injection.Detector biased at 300V.∼ 70 ps RMS at 2.4 fCENC ∼ 180 e−
M. Noy (PH-ESE-FE, CERN) NA62 GTK EOC TWEPP-10. 21.09.2010 18 / 25
Results Test Pixel Performance
Analogue Pixel Pulse Height Spectrum with 241Am
M. Noy (PH-ESE-FE, CERN) NA62 GTK EOC TWEPP-10. 21.09.2010 19 / 25
Results Test Pixel Performance
T1 RMS Jitter: Operation Frequency
Frequency (kHz)0 20 40 60 80 100 120 140 160
T1
RM
S J
itte
r (s
)
20
30
40
50
60
70
80-1210×
T1 vs Fin
Qin=1.0fC
Qin=1.2fC
Qin=1.4fC
Qin=1.6fC
Qin=1.8fC
Qin=2.0fC
Qin=3.0fC
Qin=4.0fC
Qin=5.0fC
Qin=6.0fC
Qin=7.0fC
Qin=8.0fC
Qin=9.0fC
Qin=10.0fC
T1 vs Fin
M. Noy (PH-ESE-FE, CERN) NA62 GTK EOC TWEPP-10. 21.09.2010 20 / 25
Electrical Charge Injection: ASICFull Chain
Results Electrical Charge Injection: ASIC Full Chain
T0 Transfer Function
Pulse Generator Offset (ps)0 500 1000 1500 2000 2500 3000
TD
C T
ime
(ps)
23500
24000
24500
25000
25500
26000
26500
27000
TDC Time vs Pulse Generator Offset, Qinj=3fC
M. Noy (PH-ESE-FE, CERN) NA62 GTK EOC TWEPP-10. 21.09.2010 21 / 25
Results Electrical Charge Injection: ASIC Full Chain
T0 and T1 as a function of Injected Charge
Q (fC)2 4 6 8 10
Tim
e (p
s)
24500
25000
25500
26000
26500
27000
27500Uncorrected
Corrected
Measured and Corrected times as a function of Q
M. Noy (PH-ESE-FE, CERN) NA62 GTK EOC TWEPP-10. 21.09.2010 22 / 25
Results Electrical Charge Injection: ASIC Full Chain
RMS T0 Jitter Vs Q: Average Case
Q(fC)0 2 4 6 8 10
T0
RM
S J
itte
r (p
s)
0
20
40
60
80
100
120
140
Mean T0 RMS Jitter
Time walk compensated, full chain readout, all pixels firing.
M. Noy (PH-ESE-FE, CERN) NA62 GTK EOC TWEPP-10. 21.09.2010 23 / 25
Results Electrical Charge Injection: ASIC Full Chain
Systematic (uncorrectable) Residual TimeWalk
T0_ResidualsEntries 4396Mean -0.001592RMS 14.45Underflow 0Overflow 0
T)δ<T0(Q)> - T0(Q, -200 -150 -100 -50 0 50 100 150 200 2500
20
40
60
80
100
120
140T0_Residuals
Entries 4396Mean -0.001592RMS 14.45Underflow 0Overflow 0
T0 Residuals
M. Noy (PH-ESE-FE, CERN) NA62 GTK EOC TWEPP-10. 21.09.2010 24 / 25
Synopsis
1 GTK Architecture and Requirements
2 Demonstrator ASIC
3 Testing Ethos and Methodology
4 ResultsTDC PerformanceTest Pixel PerformanceElectrical Charge Injection: ASIC Full Chain
5 Synopsis
M. Noy (PH-ESE-FE, CERN) NA62 GTK EOC TWEPP-10. 21.09.2010 24 / 25
Synopsis
Synopsis
The GigaTracker represents a very challenging project< 200 ps RMS time resolution> 800MHz beam rateHarsh radiation environment< 0.5%X0
Demonstrator ASIC and detector implemented
DLL Based TDC which gives 97 ps nominal time binning
monotonic behaviourRMS DNL ∼ 0.17LSBsRMS INL ∼ 0.27LSBs
Excellent Pixel Performance
Leading Edge Jitter ∼ 40 ps bare ASIC at 2.4 fCLeading Edge Jitter ∼ 70 ps Full depleted sensor with light injection at2.4 fC
Full chain and time walk correction
timewalk correction mechanism shown to work wellResidual systematic remainder < 15 ps RMSRMS T0 Jitter ∼ 70 ps at 2.4 fC (bare ASIC)
M. Noy (PH-ESE-FE, CERN) NA62 GTK EOC TWEPP-10. 21.09.2010 25 / 25
Synopsis
Synopsis
The GigaTracker represents a very challenging project< 200 ps RMS time resolution> 800MHz beam rateHarsh radiation environment< 0.5%X0
Demonstrator ASIC and detector implementedDLL Based TDC which gives 97 ps nominal time binning
monotonic behaviourRMS DNL ∼ 0.17LSBsRMS INL ∼ 0.27LSBs
Excellent Pixel Performance
Leading Edge Jitter ∼ 40 ps bare ASIC at 2.4 fCLeading Edge Jitter ∼ 70 ps Full depleted sensor with light injection at2.4 fC
Full chain and time walk correction
timewalk correction mechanism shown to work wellResidual systematic remainder < 15 ps RMSRMS T0 Jitter ∼ 70 ps at 2.4 fC (bare ASIC)
M. Noy (PH-ESE-FE, CERN) NA62 GTK EOC TWEPP-10. 21.09.2010 25 / 25
Synopsis
Synopsis
The GigaTracker represents a very challenging project< 200 ps RMS time resolution> 800MHz beam rateHarsh radiation environment< 0.5%X0
Demonstrator ASIC and detector implementedDLL Based TDC which gives 97 ps nominal time binning
monotonic behaviourRMS DNL ∼ 0.17LSBsRMS INL ∼ 0.27LSBs
Excellent Pixel PerformanceLeading Edge Jitter ∼ 40 ps bare ASIC at 2.4 fCLeading Edge Jitter ∼ 70 ps Full depleted sensor with light injection at2.4 fC
Full chain and time walk correction
timewalk correction mechanism shown to work wellResidual systematic remainder < 15 ps RMSRMS T0 Jitter ∼ 70 ps at 2.4 fC (bare ASIC)
M. Noy (PH-ESE-FE, CERN) NA62 GTK EOC TWEPP-10. 21.09.2010 25 / 25
Synopsis
Synopsis
The GigaTracker represents a very challenging project< 200 ps RMS time resolution> 800MHz beam rateHarsh radiation environment< 0.5%X0
Demonstrator ASIC and detector implementedDLL Based TDC which gives 97 ps nominal time binning
monotonic behaviourRMS DNL ∼ 0.17LSBsRMS INL ∼ 0.27LSBs
Excellent Pixel PerformanceLeading Edge Jitter ∼ 40 ps bare ASIC at 2.4 fCLeading Edge Jitter ∼ 70 ps Full depleted sensor with light injection at2.4 fC
Full chain and time walk correctiontimewalk correction mechanism shown to work wellResidual systematic remainder < 15 ps RMSRMS T0 Jitter ∼ 70 ps at 2.4 fC (bare ASIC)
M. Noy (PH-ESE-FE, CERN) NA62 GTK EOC TWEPP-10. 21.09.2010 25 / 25
Backup Slides
DLL Jitter
Trigger Time (s)2.9 3 3.1 3.2 3.3 3.4 3.5
-910×0
100
200
300
400
500
Trigger Time for Falling transition 25trigger_distribution_tdc_bin_25
Entries 4522Mean 3.018e-09RMS 2.811e-11Underflow 0Overflow 0
Trigger Time for Falling transition 25
allbinedgesEntries 32Mean 6.859e-12RMS 9.98e-13Underflow 0Overflow 0
RMS Bin Edge (s)0 5 10 15 20 25 30
-1210×0
2
4
6
8
10
allbinedgesEntries 32Mean 6.859e-12RMS 9.98e-13Underflow 0Overflow 0
RMS of Bin Edges
M. Noy (PH-ESE-FE, CERN) NA62 GTK EOC TWEPP-10. 21.09.2010 26 / 25
Chip 6 Full Column S-Curve @ 50V
DAC Code (dec)2600 2800 3000 3200 3400
0
2000
4000
6000
8000
10000
digital s-curve for pixel 1
Charges 1.0 fC → 5.5 fC
M. Noy (PH-ESE-FE, CERN) NA62 GTK EOC TWEPP-10. 21.09.2010 27 / 25
Chip 6 Full Column S-Curve @ 50V: Zoom
DAC Code (dec)2970 2980 2990 3000 3010 3020 3030 30400
2000
4000
6000
8000
10000
digital s-curve for pixel 1
M. Noy (PH-ESE-FE, CERN) NA62 GTK EOC TWEPP-10. 21.09.2010 28 / 25
Chip 6 Full Column Transfer Functions @ 50V
Q(fC)1 2 3 4 5
Pea
k H
eig
ht
(mV
)
750
800
850
900
950
1000
1050
1100
Chip 6 Transfer Function @ 50V .
All 45 pixels from the full column are shown here
M. Noy (PH-ESE-FE, CERN) NA62 GTK EOC TWEPP-10. 21.09.2010 29 / 25
Chip 6 Full Column Gains @ 50V
pixel_gainsEntries 45Mean 66.53RMS 1.376Underflow 0Overflow 0
Absolute Pixel Gain (mV/fC)30 40 50 60 70 80 90 100 110
0
2
4
6
8
10
pixel_gainsEntries 45Mean 66.53RMS 1.376Underflow 0Overflow 0
Chip 6: Distribution of Pixel Gains
M. Noy (PH-ESE-FE, CERN) NA62 GTK EOC TWEPP-10. 21.09.2010 30 / 25
Chip 6 Full Column Offsets @ 50V
pixel_offsetsEntries 45Mean 1110RMS 11.63Underflow 0Overflow 0
Offset (mV)1040 1060 1080 1100 1120 1140 1160 1180
0
0.5
1
1.5
2
2.5
3 pixel_offsetsEntries 45Mean 1110RMS 11.63Underflow 0Overflow 0
Chip 6: Distribution of Pixel Offsets
M. Noy (PH-ESE-FE, CERN) NA62 GTK EOC TWEPP-10. 21.09.2010 31 / 25
Chip 6 Full Column ENC @ 50V
Q(fC)1 1.5 2 2.5 3
EN
C (
elec
tro
ns)
100
120
140
160
180
200
220
240
ENC Vs Q at 50V, Chip6.
ENC is under 180 e−
M. Noy (PH-ESE-FE, CERN) NA62 GTK EOC TWEPP-10. 21.09.2010 32 / 25
Chip 6 Test Pixel ENC @ 50V
Charge (fC)1 1.5 2 2.5 3
No
ise
(ele
ctro
ns)
100
120
140
160
180
200
220
240Test Pixel 0
Test Pixel 1
Test Pixel 2
Test Pixel 3
Test Pixel 4
Noise Vs Electrical Charge Injected: HV=50V
ENC is under 180 e−
M. Noy (PH-ESE-FE, CERN) NA62 GTK EOC TWEPP-10. 21.09.2010 33 / 25
Extended Range T1
Q (fC)0 2 4 6 8 10 12 14 16 18 20
T1
(s)
19
20
21
22
23
24
25
26
27
28
29-910×
Tinj = 2.5 nsTinj = 3.5 nsTinj = 4.5 nsTinj = 5.5 nsTinj = 6.5 ns
T1 as a function of Q over extended range.
M. Noy (PH-ESE-FE, CERN) NA62 GTK EOC TWEPP-10. 21.09.2010 34 / 25
Extended Range T1 Jitter
Q (fC)0 2 4 6 8 10 12 14 16 18 20
T1
RM
S J
itte
r (s
)
0
0.05
0.1
0.15
0.2
0.25
0.3
0.35
0.4
0.45
0.5-910×
Tinj = 2.5 nsTinj = 3.5 nsTinj = 4.5 nsTinj = 5.5 nsTinj = 6.5 ns
T1 Jitter as a function of Q over extended range.
M. Noy (PH-ESE-FE, CERN) NA62 GTK EOC TWEPP-10. 21.09.2010 35 / 25
Extended Range T2
Q (fC)0 2 4 6 8 10 12 14 16 18 20
T2
(s)
32
34
36
38
40
42
44
46
-910×
Tinj = 2.5 nsTinj = 3.5 nsTinj = 4.5 nsTinj = 5.5 nsTinj = 6.5 ns
T2 as a function of Q over extended range.
M. Noy (PH-ESE-FE, CERN) NA62 GTK EOC TWEPP-10. 21.09.2010 36 / 25
Extended Range T2 Jitter
Q (fC)0 2 4 6 8 10 12 14 16 18 20
T2
RM
S J
itte
r (s
)
0
0.05
0.1
0.15
0.2
0.25
0.3
0.35
0.4
0.45
0.5-910×
Tinj = 2.5 nsTinj = 3.5 nsTinj = 4.5 nsTinj = 5.5 nsTinj = 6.5 ns
T2 Jitter as a function of Q over extended range.
M. Noy (PH-ESE-FE, CERN) NA62 GTK EOC TWEPP-10. 21.09.2010 37 / 25
Extended Range TOT
Q (fC)0 2 4 6 8 10 12 14 16 18 20
TO
T (
s)
6
8
10
12
14
16
18
20
22
24-910×
Tinj = 2.5 nsTinj = 3.5 nsTinj = 4.5 nsTinj = 5.5 nsTinj = 6.5 ns
TOT as a function of Q over extended range.
M. Noy (PH-ESE-FE, CERN) NA62 GTK EOC TWEPP-10. 21.09.2010 38 / 25
Extended Range TOT Jitter
Q (fC)0 2 4 6 8 10 12 14 16 18 20
TO
T R
MS
Jit
ter
(s)
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8-910×
Tinj = 2.5 nsTinj = 3.5 nsTinj = 4.5 nsTinj = 5.5 nsTinj = 6.5 ns
TOT Jitter as a function of Q over extended range.
M. Noy (PH-ESE-FE, CERN) NA62 GTK EOC TWEPP-10. 21.09.2010 39 / 25