The performance of the ZEUS central tracking detector z-by-timing electronics in a transputer based data acquisition system
Abstract
The Central Tracking Detector of the ZEUS experiment employs a time difference technique to measure the z coordinate of each hit. The method provides fast, three-dimensional space point measurements which are used as input to all levels of the ZEUS trigger. Such a tracking trigger is essential in order to discriminate against events with vertices lying outside the nominal electron-proton interaction region. Since the beam crossing interval of the HERA collider is 96 ns, all data must be pipelined through the front-end readout electronics. Subsequent data aquisition employs a novel technique which utilizes a network of approximately 120 INMOS transputers to process the data in parallel. The z-by-timing method and its data aquisition have been employed successfully in recording and reconstructing tracks from electron-proton interactions in ZEUS.
- Publication:
-
Nuclear Physics B Proceedings Supplements
- Pub Date:
- May 1993
- DOI:
- 10.1016/0920-5632(93)90023-Y
- Bibcode:
- 1993NuPhS..32..181F