The Outer Tracker detector of the HERA-B experiment. Part II: Front-end electronics

H. Albrecht, M. Bahte, Th.S. Bauer, M. Beck, K. Berkhan, G. Bohm, M. Bruinsma, T. Buran, M. Capeans, B.X. Chen, H. Deckers, X. Dong, R. Eckmann, D. Emelianov, G. Evgrafov, I. Golutvin, M. Hohlmann, K. Höpfner, W. Hulsbergen, Y. JiaC. Jiang, H. Kapitza, S. Karabekyan, Z. Ke, Y. Kiryushin, H. Kolanoski, S. Korpar, P. Križan, D. Krücker, A. Lanyov, Y.Q. Liu, T. Lohse, R. Loke, R. Mankel, G. Medin, E. Michel, A. Moshkin, J. Ni, S. Nowak, M. Ouchrif, C. Padilla, R. Pernack, A. Petrukhin, M. Pohl, D. Pose, D. Ressing, B. Schmidt, W. Schmidt-Parzefall, A. Schreiner, H. Schröder, U. Schwanke, A.S. Schwarz, I. Siccama, S. Solunin, S. Somov, V. Souvorov, A. Spiridonov, M. Starič, C. Stegmann, O. Steinkamp, N. Tesch, I. Tsakov, U. Uwer, S. Vassiliev, D. Vishnevsky, I. Vukotic, M. Walter, J.J. Wang, Y.M. Wang, H.J. Wilczek, R. Wurth, J. Yang, Z. Zheng, Z. Zhu, R. Zimmermann

Research output: Contribution to JournalArticleAcademicpeer-review

Abstract

The HERA-B Outer Tracker is a large detector with 112,674 drift chamber channels. It is exposed to a particle flux of up to 2×105cm-2s-1 thus coping with conditions similar to those expected for the LHC experiments. The front-end readout system, based on the ASD-8 chip and a customized TDC chip, is designed to fulfil the requirements on low noise, high sensitivity, rate tolerance, and high integration density. The TDC system is based on an ASIC which digitizes the time in bins of about 0.5 ns within a total of 256 bins. The chip also comprises a pipeline to store data from 128 events which is required for a deadtime-free trigger and data acquisition system. We report on the development, installation, and commissioning of the front-end electronics, including the grounding and noise suppression schemes, and discuss its performance in the HERA-B experiment. © 2005 Elsevier B.V. All rights reserved.
Original languageEnglish
Pages (from-to)610-629
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume541
Issue number3
DOIs
Publication statusPublished - 11 Apr 2005
Externally publishedYes

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