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//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

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 rat

her slow ~40 events / pulse– Need memory module to store data in MICE si

tuation with fast LVDS data links

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

VLP

C backplane

Linux PC

PCI-VME (SBS Bit3)

SASeq #2

SASeq #1

1553

LVDS-FIFO#３

LVDS-FIFO #４

AFE II (L)

AFE II (R)

VLPC Cassette #2

VLPC Cryostat

AFE II (L)

AFE II (R)

VLPC Cassette #1

VM

E B

US

System Overview

CAMAC-VME

CAMAC ADC/TDC

6U

Serialized ADC DATA

Slow Control

Trigger Control

1024 ch

1024 ch8x64 ch

8x64 ch

4

4x8bit = 32 bit / board

8x64 ch

8x64 ch

LVDS-FIFO #1

LVDS-FIFO #２4

4

4

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 VM

E readout (VLPC)• Transport data via Network Shared Memory• Processes can be distributed to PCs on the networ

k.

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

Status

• Test-bench with VME readout modules in fermilab was built in Dec. 2004– Succeeded to control 1553 / SASeq modules from Lin

ux-PC via Bit3 interface card.

• AFEII almost debugged• 5 boards of LVDS receiver has been made in fer

milab with US-JP joint budget• Will test LVDS receiver boards with AFEII in Fe

b. 14th-17th

• Need integration DAQ test in Fermilab settle to KEK