HERA-B framework for online calibration and alignment

Hernández, J. M.; Reßing, D.; Rybnikov, V.; Sanchez, F. J. Munoz; Amorim, A.; Medinnis, M.; Kreuzer, P.; Schwanke, U.

doi:10.1016/j.nima.2005.03.135

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Detector Calibration1

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2007

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“…Failing hardware, threshold manipulation, and chamber movements during the run periods call for several instances of all sets. They are all stored in the HERA-B Calibration-and-Alignment (CnA) Database [13].…”

Section: Detector Calibrationmentioning

confidence: 99%

The outer tracker detector of the HERA-B experiment. Part III: Operation and performance

Albrecht

Bauer²,

Beck³

et al. 2007

Nuclear Instruments and Methods in Physics Research Section A:

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In this paper we describe the operation and performance of the HERA-B Outer Tracker, a 112 674 channel system of planar drift tube layers. The performance of the HERA-B Outer Tracker system fullfilled all requirements for stable and efficient operation in a hadronic environment, thus confirming the adequacy of the honeycomb drift tube technology and of the front-end readout system. The detector was stably operated with a gas gain of 3 · 10 4 in an Ar/CF 4 /CO 2 (65:30:5) gas mixture, yielding a good efficiency for triggering and track reconstruction, larger than 95 % for tracks with momenta above 5 GeV/c. The hit resolution of the drift cells was 300 to 320 µm and the relative momentum resolution can be described as:At the end of the HERA-B running no aging effects in the Outer Tracker cells were observed.

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Section: Detector Calibrationmentioning

confidence: 99%