ALICE Collaboration

ALICE TRD

The Transition Radiation Detector (TRD) performs electron identification and triggering on electrons and jets, providing a trigger decision in about 7 microseconds.

TRD is composed of 522 detectors, arranged in 18 sectors in azimuth, each of 5 stacks in longitudinal direction, with 6 layers per stack. The diameter of the TRD cylinder is about 7 m and the length 7 m. It has 1.15 million channels of readout, each sampling the signal in 20 time bins. The active gas is a xenon-CO₂mixture.

Details of the working principle of TRD is in the link here.

TRD Documents

Addendum to the ALICE Proposal 1999
ALICE Transition Radiation Detector: Technical Design Report 2001
The ALICE Transition Radiation Detector: construction, operation, and performance: Nucl. Instrum. Meth. A 881 (2018) 88; (arXiv:1709.02743).

TRD Internal:

Photo Galleries

Project Leader:
Anton Andronic (Munster, Germany)
Deputy Project Leader:
Johanna Stachel (Heidelberg, Germany)
Technical Coordinator:
Benjamin Donigus (Frankfurt, Germany)
Offline Coordinator:
Christoph Blume (Frankfurt, Germany)

CERN Accelerating science

ALICE TRD

TRD Documents

TRD Internal:

Photo Galleries

Participating Institutions: