1. The readout system for the LHCb outer tracker
- Author
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Wiedner, D., Albrecht, J., Bachmann, S., Deissenroth, M., Dubitzki, R., Eisele, F., Haas, T., Ketel, T., Knopf, J., Rausch, A., Rusnyak, R., Schwemmer, R., Stange, U., Trunk, U., Uwer, U., Apeldorn, G., Bagaturia, I., Bauer, T., Berkien, A., Blouw, J., Bos, E., Merk, M., Nardulli, J., Nedos, M., Pellegrino, A., Simoni, E., Sluijk, T., Spelt, J., Jeroen van Tilburg, Tuning, N., Vankow, P., Guz, Y., Spaan, B., Warda, K., and Hommels, Bart
- Subjects
Detectors and Experimental Techniques - Abstract
The LHCb Outer Tracker is composed of 55 000 straw drift tubes. The requirements for the OT electronics are the precise (1 ns) drift time measurement at 6 % occupancy and 1 MHz readout. Charge signals from the straw detector are amplified, shaped and discriminated by ATLAS ASDBLR chips. Drift-times are determined and stored in the OTIS TDC and put out to a GOL serializer at L0 accept. Optical fibres carry the data 90 m to the TELL1 acquisition board. The full readout chain performed well in an e- test beam.