WP9.4 SiTra integration into common DAQ
description
Transcript of WP9.4 SiTra integration into common DAQ
11 April 2013
Thomas Bergauer
WP9.4 SiTra integration into common DAQ
AIDA WP9.4 meeting
WP9.4 Status
2
WP9.4 (silicon tracking) status
• Within WP9.4 task, there is only one deliverable (due M39, April 2014)
• Status of baseline deliverable:– Re-use old SiLC sensors done.– APV25-based front-end done.– Conventional mechanics done.– readout system hardware done.– Offline software done – Online (DAQ) software (re-implementation ongoing)– Integration with common DAQ missing
Thomas Bergauer11 April 2013
WP9.4 Status
3Thomas Bergauer11 April 2013
Status:• DAQ system based on APV25 readout chip (developed for CMS)• Three versions:
• APVDAQ: lab-system for 4 APVs/boards; 1kHz using 1 card• SiTra DAQ: 16 APVs/board; 3kHz (Zero Suppressed)• Belle II System: 48APVs/board; up to 20kHz
APV25chips
Front-endhybrids
Rad-hardvoltage
regulators
Analog level translation,data sparsification andhit time reconstruction
~2mcoppercable
Junctionbox
~10mcoppercable
VME boards
Data Acquisition System
WP9.4 Status
4
DAQ Details
• Compatibility with (old)
EUDET TLU box exists
• Has been used in previous
testbeams with EUDET
telescope (since 2009)
• offline merging of data
streams
• Uses “smart” mode, i.e.
saves trigger number with
each event
• Needs external trigger
(Scintillator)Thomas Bergauer11 April 2013
WP9.4 Status
511 April 2013
Readout System Components
Repeater BoxLevel translation, buffering
FADC+PROC (9U VME)Digitization, zero-suppression,
hit time reconstruction
Thomas Bergauer
WP9.4 Status
6Thomas Bergauer
Readout Chip: APV25
• Developed for CMS (LHC) by Imperial College
London and Rutherford Appleton Lab – 70.000 chips installed
• 0.25 µm CMOS process (>100 MRad tolerant)
• 128 channels
• 192 cell analog pipeline
enables 160xTclock latency
• 20-80 MHz clock frequency (40MHz nom.) using
peak mode
• 50 ns shaping time low occupancy
• Noise: 250 e + 36 e/pF
must minimize capacitive load!!!
• Multi-peak mode (read out several
samples along shaping curve)11 April 2013
WP9.4 Status
7Thomas Bergauer11 April 2013
APV25 – Hit Time Reconstruction
• Possibility of recording multiple samples (x) along shaped waveform (feature of APV25)
• Reconstruction of peak time (and amplitude)by waveform fit– Offline now– LUT in Hardware
for Belle II
• Is used toremove off-timebackground hits 0 50 100 150 200 250 300
0
5000
10000
15000
20000
25000
30000
S peak
tpeak
Measurement
WP9.4 Status
8Thomas Bergauer11 April 2013
• DAQ online software was ported recently from old LabWindows/CVI
system to Linux/ROOT-based system– Basic functionality available
– implementation of sophisticated run modes ongoing (ADC delay scan,
calibration scan,…) to be done by the end of the year
– Offers modular system
– Dummy EUDAQ producer exists, interface to new software seems to be possible
Status DAQ software
WP9.4 Status
9
Summary
• WP9.4 deliverable (hardware) will be available in summer this year – Sensors, FE electronics, mechanics, DAQ
Hardware (mid-size System)
• DAQ Software re-implementation ongoing– Basic functionality available– Modular design– TLU integration (stores trigger number)– Interface to EUDAQ possible via EUDAQProducer
Thomas Bergauer11 April 2013