Speaker
Dimos Sampsonidis
(Aristotle University of Thessaloniki)
Description
The construction of the 112 BIS drift-tube chambers (MDT) for the ATLAS
muon spectrometer is described, with emphasis on the quality assurance/
quality control procedures. The required mechanical precision of 20 μm on
the location of the individual wires has been achieved and maintained during
the entire production period (five years) of the chambers at the University of
Thessaloniki. The chamber assembly facility, including the special precision
tooling, and the methods and techniques used to ensure the quality in the
construction and the reproducibility of the chambers are presented. A
sample of 12% of the chambers, randomly selected to cover the entire
production period, has been scanned at the X-ray tomograph facility at
CERN. The agreement between the quality assurance/quality control
measurements during the assembly and the X-ray tomograph results is also
presented.
Author
Dimos Sampsonidis
(Aristotle University of Thessaloniki)
