lund university lund jra2 tpc daqfrom rcu/tlu/daqpc busy logic: trigger sets system busy busy reset...
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Lund University Lund
Skåne
Sweden
Ulf Mjörnmark
Status and plans
JRA2TPC DAQ
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TPC local trigger
TPC
RCU
back
plane
25cm FECData in/out200MB/s2 fibres
Distrbox40MHz
clk
lvl1
busy
2048ch,16 FEC
close
BUSy
Trigger +event #
TLUMainDAQ
CLk
metersaway
clk
busy
Trigger +event #
Other subsys daq
ethernet
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Based on the ALICE TPC readout:Front End Card (FEC), to be modified for new amplifierReadout Control Unit (RCU), modified for clock/trigger/25Mhz sample clockSource Interface Unit (SIU)Read Out Receiver Card (DRORC), Destination Interface Unit (DIU)ALICE API/driversBuild our own DAQ on topDistributor Box (DBOX) to distribute clock/trigger/busyInterface to common DAQ
EUDET: 1 RCU10000 ch: 4 RCUpossible to distribute 1 RCU system
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Hardware overviewFrontEndCardReadoutControlUnitReadOutReceivrCardDistributorBOX
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19 cm
17 c
m
ALICE TPC Front End Card
ALTRO 16 ch ADC
PASA to be raplced with
Programmable Charge Amplifier (PCA16)
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Trigger/Busy system
Ethernet
ALTRO bus
synchronization:compare event numbercompare time stampsfrom RCU/TLU/DAQPC
busy logic:trigger sets system busybusy reset either:1) DAQPC via ethernet2) Fixed time in distributor box
Cables
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TEST SETUP
DRORC
Optical fiberALICE FECBackplane
RCU
Trigger
Power
Pulser
Busy/Control( Parallel port )
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Raw data (double pulse)
TIME = 100ns per bin (10 MHz sample clock)410 samples
AD
C v
alu
e
AD
C v
alu
e
Pedestal subtractedZero suppressed(Multiple pulses)
DATA
from
TEST
SETUP
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Use ALICE drivers and APIs as isBuild DAQ (readout/control) on topInterface to common DAQ
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SUMMARY
Based on ALICE TPC readoutNew preamplifier on front end card Using ALICE driversBuild simple DAQ on topDistributor box to distribute trigger/clock/busy
Simple test setup working
Work in progress on:front end cardsdistributor boxreadout of hardwarereadout configuration
Missing:run controlmonitoringdetector controldata transfer and format