x5 test beam preliminary studies
DESCRIPTION
X5 TEST BEAM preliminary studies. Outline Voltage scan PLL scan + Neighbour Strips Sensor Uniformity Comments Special Trigger (Friday). Opto-Hybrid Normalization. Signal and Noise for each APV are Normalized to a same value of OH gain. Run 30029. - PowerPoint PPT PresentationTRANSCRIPT
X5 TEST BEAM X5 TEST BEAM preliminarypreliminary studiesstudies
Outline
Voltage scan
PLL scan + Neighbour Strips
Sensor Uniformity
Comments
Special Trigger (Friday)
D. Giordano - Università & INFN di Bari 2
Opto-Hybrid Normalization
Run 30029Signal and Noise for each APV are Normalized to a same value of OH gain
• normalization with Tick Mark difference (Dig1 – Dig0)
• S and N values normalized to Tick Mark Difference = 230Riccardo talk of July 2003
TIB TOB
D. Giordano - Università & INFN di Bari 4
HV scan for TIB modules
Peak mode: beamruns: 1198,99,1204,07,08,09,11,13,14,15
Dec. Mode: beam @ 25 nsruns: 30024,27,30,33,36,39,42,46
Studies:• I Vs HV
• S/N, Normalized Noise, Cluster Width Vs HV
Runs with Hysteresis effect are excluded
NEW: Vscan for TIB/TOB
Dec mode: beam, beam @ 25 ns , beam runs: 30133,37,40,42,45,47,51,54,62,63,6474, 75
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Norm.Noise Vs HV
Peak Mode Dec. Mode
~1.06
~1.38
NDec/NPeak ~ 1.3
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PLL scan for TIB modules
Peak mode:ISHA scan @ HV = 300 V
runs: 1154, 2290, 1225, 1300 ( beam, beam)
Dec. Mode: HV scan @ ISHA=40, VFS=60
runs: 30029,32,35,38,41,45 ( beam @ 25 ns)
Studies:• Fit of Signal Shape
• Normalized Signal, Rise Time Vs ISHA or HV
• Delay curves per strips
D. Giordano - Università & INFN di Bari 14
Peak mode: Signal Shape
Run 1154
Sig
nal
(A
DC
cou
nts
)
Nor
m.S
ign
al (
AD
C c
oun
ts)
PLL Delay (ns)
CR-RC fit of Signal Shape
D. Giordano - Università & INFN di Bari 15
Peak Mode: Scan in ISHA N
orm
.Sig
nal
(A
DC
cou
nts
)
VFS = 60
Nor
m.S
ign
al (
AD
C c
oun
ts)
D. Giordano - Università & INFN di Bari 16
Dec mode: Signal Shape
Run 30032
= t9/10 – t1/10 Sig
nal
(A
DC
cou
nts
)
Nor
m.S
ign
al (
AD
C c
oun
ts)
PLL Delay (ns)
• Gaussian fit of Signal Shape
• = t9/10 – t1/10
D. Giordano - Università & INFN di Bari 18
Dec mode: Scan in HVN
orm
.Sig
nal
(A
DC
cou
nts
)
Module TIB 2
ISHA = 40 ,VFS = 60
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Peak mode: Eta & <Width>
PLL Delay (ns)
Eta
Eta
Width = 1
Width = 2
Run 1154 - TIB2
Width > 2
|Eta -0.5| < 0.3
Peak Time
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Delay Curves
QSeed
Q-1 Q+1
DEF:
QC = QClus QS = QSeed
Qu = max( Q-1 , Q+1 ) QL = min( Q-1 , Q+1 )
• QC, QS, QU, QL Vs PLL Delay @
Studies:|Eta -0.5|<0.3
0.3<|Eta -0.5|
• Estimate Norm.Signal, PeakTime, tau
for each Delay curve
• Scan in ISHA or HV
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Peak mode: Delay curves
Run 1154 - TIB2
0.3 < |Eta – 0.5|
QCQS
QLQU
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Peak mode: Delay curves
Run 1154 - TIB2
|Eta – 0.5| < 0.3
QCQS
QLQU
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Peak Mode: Scan in ISHA of Qc
Nor
m.S
ign
al (
AD
C c
oun
ts)
VFS = 60
Tau
(n
s)
0.3 < |Eta – 0.5| |Eta – 0.5| < 0.3
TIB2
QC QC
D. Giordano - Università & INFN di Bari 25
Peak Mode: Scan in ISHA of TpDEF: Tp = Peak Time of Qi – Peak Time of QcVFS = 60
|Eta – 0.5| < 0.3TIB2
0.3 < |Eta – 0.5|
Tp
QS
QL
QU
QS
QL
QU
D. Giordano - Università & INFN di Bari 26
Dec mode: Delay curves
Run 30032 - TIB2
0.3 < |Eta – 0.5|
QCQS
QLQU
ISHA = 40 ,VFS = 60
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Dec mode: Delay curves
Run 30032 - TIB2
|Eta – 0.5| < 0.3QC
QS
QLQU
ISHA = 40 ,VFS = 60
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High Statistic Runs for TIB
Peak mode:runs: beam 1351,52,53
beam @ 25 ns 1484
Dec. Mode: runs: beam 1332
Studies:• S/N • Noise• Width
Vs Cluster Position
selecting events in the range StripNb ± 0.5
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Dec. Mode: Beam Profile
256 ÷ 512 1 ÷ 120
Dead Strips: 69, 70
TIB 2Run 1332 TIB 5
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Dec. Mode: S/N Vs Cluster Position
S/N = 17.6 S/N = 17.4
TIB 2 TIB 5
Dead Strips
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Dec. Mode: Width Vs Clus. Position
Mean 1.72
TIB 2 TIB 5
Mean 1.78
Dead Strips
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Dec. Mode: Noise Vs Clus. Position
TIB 2 TIB 5
Dead Strips
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Peak Mode: S/N & Noise Vs Clus.Pos.
25.8 25.8
TIB 2Run 1351 TIB 5
Dead Strips
Dead Strips
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PLL scan: Pattern 00100
Run 30257 Run 30258
beam @ 25 ns
On time