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SciFi tracker DAQ for KEK beam test

SciFi tracker DAQ for KEK beam test. M. Yoshida (Osaka Univ.) MICE meeting at LBNL 09.Feb.2005. KEK beam test. Test for the SciFi tracker with 1T solenoid magnetic field p/ p / m test beam line in KEK-PS Slow extraction from the internal target in 2-sec flat top of a 4-sec spill

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SciFi tracker DAQ for KEK beam test

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  1. SciFi tracker DAQ for KEK beam test M. Yoshida (Osaka Univ.) MICE meeting at LBNL 09.Feb.2005

  2. KEK beam test • Test for the SciFi tracker with 1T solenoid magnetic field • p/p/m test beam line in KEK-PS • Slow extraction from the internal target in 2-sec flat top of a 4-sec spill • Add 4th station to the prototype tracker • Newly developed Cryostat with Cryocooler • 2 VLPC cassettes embeded

  3. DAQ for the KEK beam test • Readout TOF counters and the other. • CAMAC ADC/TDC • Readout AFEII on VLPC cassette • In KEK beam test, ~1k particles / spill • MICE beam ~600 muons / 850 usec • Existing system used for cosmic-ray test is rather slow ~40 events / pulse • Need memory module to store data in MICE situation with fast LVDS data links

  4. LVDS receiver boards • AFEII puts serialized ADC data on LVDS data links • Need to deserialize before storing into FIFO • Solution: • Custom-made VME board (Fermilab) • 4 LVDS data links / board • (MCM  serialize)  cable  (deserialize  FIFO)  VMEbus • Backup: • Existing FIFO board (KEK) • 32-bit inputs / board • (MCM  serialize)  cable  deserialize  cable  FIFO board  VMEbus • LVDS interface boards have been produced

  5. System Overview Linux PC VLPC backplane VME BUS 6U AFE II (L) 8x64 ch PCI-VME (SBS Bit3) VLPC Cassette #1 1553 Slow Control 1024 ch AFE II (R) 8x64 ch SASeq #1 Trigger Control 8x64 ch AFE II (L) SASeq #2 VLPC Cassette #2 CAMAC-VME 1024 ch AFE II (R) 4 8x64 ch LVDS-FIFO #1 VLPC Cryostat 4 LVDS-FIFO #２ 4 Serialized ADC DATA LVDS-FIFO#３ 4 CAMAC ADC/TDC LVDS-FIFO #４ 4x8bit = 32 bit / board

  6. DAQ Software • Will use Unix-based DAQ programs • “Unidaq” developed by KEK • A lot of experience at the KEK beam tests • Server – Client system • An Event Builder • Collectors for CAMAC readout (TOF etc.) and VME readout (VLPC) • Transport data via Network Shared Memory • Processes can be distributed to PCs on the network.

  7. Processes • Event Builder • Merge data from collectors • Send event data to data storage system • Collector for TOF etc. (CAMAC) • Control trigger system via input/output register module on CAMAC • Read ADC and TDC • Send data to event builder • Collector for VLPC (VME) • Collect data in LVDS receiver boards • Send data to Event Builder • Slow Control for VLPC (VME) • Via 1553 interface board on VME to AFEII • Not synchronized to DAQ cycle • Set thresholds of discriminators on AFEII at the beginning of the data taking run • Temperature control

  8. Status • Test-bench with VME readout modules in fermilab was built in Dec. 2004 • Succeeded to control 1553 / SASeq modules from Linux-PC via Bit3 interface card. • AFEII almost debugged • 5 boards of LVDS receiver has been made in fermilab with US-JP joint budget • Will test LVDS receiver boards with AFEII in Feb. 14th-17th • Need integration DAQ test in Fermilab  settle to KEK

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