First Look at the July-August12 TestBeam Data T. Alexopoulos, G. Iakovidis, S. Leontsinis, K. Ntekas 1

finger Sci (SA) Beam profile wire chamber 727 TEST BEAM SETUP Jul-Aug2012 ( ) Si3 Si6 Y-inverted 26 Jura TOP VIEW SIDE VIEW Si1 26 s1 s640 New movable table (π -, -80 GeV/c) z x z y y x x veto Sci SB SD 5 SB Saleve SC 5 Si1 26 s1 s640 Si6 Y-inverted 26 Si3 26 s1 s Info: Test MM: T1-8, p=0.4mm, sw=0.3mm, gp=5mm X X X X X X X X T1 T2 T3 T4 T5 T6 T7 T8 XY Tmm3 Tmm2 XY Tmm5 X X X X X X X X T1 T2 T3 T4 T5 T6 T7 T8 XY Tmm3 Tmm2 XY 120 Freiburg frame -θ-θ Info: Ref MM: Tmm2-6, p=0.250mm, sw=0.150mm, gp=5mm XY Tmm6 XY (π -, -120GeV/c after Mon 30.07) Tmm6 Tmm5 s1 s64 s256 s1 s L1 s64 2

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APV Elx 4

Ineffic.= π(d 2 /4)/L 2 =0.011 for d=0.3mm & L=2.5mm L d pillars Plane Efficiency Define Normal tracks Use cluster position as a hit x x x x x x x T1 T2 T3 T4 T5 T6 T7 T8 5

missing Missing cluster positions pilar x x x x x x x T1 T2 T3 T4 T5 T6 T7 T8 6

Normal Tracks 0.21mrad x x x x x x x T1 T2 T3 T4 T5 T6 T7 T8 x mrad Define Normal tracks Use cluster position as a hit [rad]

Position Resolution 8 Normal Tracks x x x x x x x T1 T2 T3 T4 T5 T6 T7 T8 x Define Normal tracks Use cluster position as a hit Calculate residuals σ in mm x x x x x x x T1 T2 T3 T4 T5 T6 T7 T8 σ ex final σ=(σ in *σ ex ) 1/2

9 Angular Resolution T1 T2 T3 T4 T5 T6 T7 T8 θ Odd MM earliest-time strip Even MM earliest-time strip All MM earliest-time strip Odd MM Average strip Even MM Average strip All MM Average strip Odd MM track info Even MM track info All MM track info sisi sfsf x x Odd MM cluster info Even MM cluster info All MM cluster info

Theta=20 degrees uTPC mode 10 θ

T12 T34 T56 T78 ? 11

Theta=30 degrees 12

T12 T34 T56 T78 ? 13

Theta=40 degrees 14

T12 T34 T45 T56 ? 15

mrad 0.21mrad 0.37mrad0.47mrad 0.38mrad 0.23mrad 0.30mrad0.33mrad [rad]

mrad 0.78mrad 0.55mrad 0.85mrad 0.82mrad 0.87mrad 0.93mrad 0.56mrad 0.57mrad [rad]

18 [rad]

19 [rad]

20 VMM1 1.6mrad 1.3mrad 1.4mrad 0.85mrad 0.88mrad [rad]

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22 θ paral up n mm Residuals All MM Track Info T1 MM

23 final σ=(σ in *σ ex ) 1/2 x x x T1 T3 T5 T7 10 o x x x T2 T4 T6 T8 mm

24 final σ=(σ in *σ ex ) 1/2 x x x T1 T3 T5 T7 20 o x x x T2 T4 T6 T8 mm

25 final σ=(σ in *σ ex ) 1/2 x x x T1 T3 T5 T7 30 o x x x T2 T4 T6 T8 mm

26 final σ=(σ in *σ ex ) 1/2 x x x T1 T3 T5 T7 40 o x x x T2 T4 T6 T8 mm

27 VMM1 Normal Tracks Number of clusters Pilars mm x x x x T1 T2 T3 T4 T5 T6 x

28 VMM1 Normal Tracks Residuals x x x x x T1 T2 T3 T4 T5 T6

mm VMM1 card Flat cable AZ adapter BNL DAQ card Analog Amplitude & time Lemo cables Avnet LX9 switch x16 mmdaq PC SDC RJ45 USB Power supply 8A/5V CL & trigger Sci trigger APV SRS FEC Mezz card FPGA Virtex-7 Trigger Eval board CL & trigger distribution RJ45 Fast trigger out (LVDS) x16 Monitor out VMM1 Readout System July 2012 x16 29

To Ethernet switch mMegas Detector FPGA Trigger Processor Address in Real Time 8 planes VMM1 Control And Digitizer Trigger & Clock From SRS (Givi’s card) Trigger/Clock Distribution Monitor Analog Amplitude And Time 30

Theta=30 degrees 31

Theta=30 degrees 32

T12 T34 T56 33

30 o 20 o 10 o 540V 530V 520V 30 o 20 o 10 o 540V 530V 520V 34

Earliest time of T1 & T2 APV-Earliest time 35