T2K Data Acquisition System

Matt ThorpeSTFC Rutherford Appleton Laboratory

17th IEEE Real-Time Conference 2010, Lisbon, Portugal

The T2K Experiment

T2K Collaboration: ~450 collaborators, 65 institutes, 12 countries

Super-Kamiokande far detector

T2K Near Detectors

INGRID

ND280

T2K Near Detectors

INGRID

ND280

T2K NM pit - 26/11/2009

Scintillator geometries

INGRIDP0D

FGD

SMRD

Multi-Pixel Photon Detectors

Trip-T Front-end Board (TFB)

Trip-T sample & hold ASIC (x4)

Spartan 3 FPGA

Data out Clock in

10-bit ADC (x8)

16x MPPC channels

Slow control

Trigger out

Trip-T Front-end Board (TFB)

Trip-T sample & hold ASIC (x4)

Spartan 3 FPGA

Data out Clock in

10-bit ADC (x8)

16x MPPC channels

Slow control

Trigger out

ND280 electronics architecture

ND280 electronics architecture

ND280 electronics architecture

ND280 electronics architecture

Back-end Board (BEB)

48x LVDS I/O

Optical I/O

PROM (x2), JTAG

512MB DDR2

Virtex II Pro FPGA

DAQ System Architecture

Front-end Processing Node (FPN)

Front-end Processing Node (FPN)

Front-end Processing Node (FPN)

Front-end Processing Node (FPN)

MIDAS Back-end Processes

First INGRID cosmic event

Single module cosmic event, 2009

Neutrino interaction in the P0D sub-detector

Conclusions

• DAQ successfully used to commission all current ND280 detectors with multiple sub-detectors commissioned and calibrated simultaneously

• Also deployed as QA DAQ systems for module production

• DAQ ready to accept INGRID diagonal modules and ECAL P0D & barrel modules summer-autumn 2010

• Now in daily use for beam data taking

• Data rates to tape are within acceptable limits

• CPU load on FPNs low (~5% RXT, ~10% DPT)

Thank you!