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https://doi.org/10.1016/j.nima.2003.10.027
Copy DOIPublication Date: Feb 1, 2004 | |
Citations: 9 |
A dedicated X-ray tomograph has been developed at CERN to control the required wire placement accuracy of better than 20 μm of the 1200 Monitored Drift Tube Chambers which make up most of the precision chamber part of the ATLAS Muon Spectrometer. The tomograph allows the chamber wire positions to be measured with a 2 μm statistical and 2 μm systematic uncertainty over the full chamber cross-section of 2.2×0.6 m 2. Consistent chamber production quality over the 4-year construction phase is ensured with a ∼15% sampling rate. Measurements of about 70 of the 650 MDT chambers so far produced have been essential in assessing the validity and consistency of the various construction procedures.
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