X5 TEST BEAM preliminary studies Outline Voltage scan PLL scan + Neighbour Strips Sensor...

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


Norm.Factor Vs RunNb

TIB2 APV 3

TIB2 APV 3

TOB1 APV2


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


I Vs HV

Peak Mode Dec. Mode


S/N Vs HV

~25.5 ~18

Peak Mode Dec. Mode


Norm.Noise Vs HV

Peak Mode Dec. Mode

~1.06

~1.38

NDec/NPeak ~ 1.3


Cluster Width Vs HV

Peak Mode Dec. Mode

~1.15


New Vscan in Dec Mode

TOBTIB

Acquisition from 12h to 20h


S/N Vs HV

Low statWrong

Fit

~25

~18


Norm.Noise Vs HV


Cluster Width Vs HV


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


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


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)


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


Dec mode: Noise Vs PLL DelayRun 30032


Dec mode: Scan in HVN

orm

.Sig

nal

(A

DC

cou

nts

)

Module TIB 2

ISHA = 40 ,VFS = 60


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


Dec mode: <Width>Run 30032 -

TIB2


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


Peak mode: Delay curves

Run 1154 - TIB2

0.3 < |Eta – 0.5|

QCQS

QLQU


Peak mode: Delay curves

Run 1154 - TIB2

|Eta – 0.5| < 0.3

QCQS

QLQU


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


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


Dec mode: Delay curves

Run 30032 - TIB2

0.3 < |Eta – 0.5|

QCQS

QLQU

ISHA = 40 ,VFS = 60


Dec mode: Delay curves

Run 30032 - TIB2

|Eta – 0.5| < 0.3QC

QS

QLQU

ISHA = 40 ,VFS = 60


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


Dec. Mode: Beam Profile

256 ÷ 512 1 ÷ 120

Dead Strips: 69, 70

TIB 2Run 1332 TIB 5


Dec. Mode: S/N Vs Cluster Position

S/N = 17.6 S/N = 17.4

TIB 2 TIB 5

Dead Strips


Dec. Mode: Width Vs Clus. Position

Mean 1.72

TIB 2 TIB 5

Mean 1.78

Dead Strips


Dec. Mode: Noise Vs Clus. Position

TIB 2 TIB 5

Dead Strips


Peak Mode: S/N & Noise Vs Clus.Pos.

25.8 25.8

TIB 2Run 1351 TIB 5

Dead Strips

Dead Strips


Peak Mode: Width Vs Clus. Position

Mean 1.58

Mean 1.43


PLL scan: Pattern 00100

Run 30257 Run 30258

beam @ 25 ns

On time


Comment on Eta

Common Block ALLCLUST in ntuple 1001 (file _tt6.hbook)

clusEta(totCluster)

Width = 1Width > 0

Eta = QL/(QR+QL)

Clusid = 1

QL, QR from

maxstr_charge_cl

charge_np_cl

charge_nm_cl

X5 TEST BEAM preliminary studies Outline Voltage scan PLL scan + Neighbour Strips Sensor...

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