NDLI: A high precision X-ray tomograph for quality control of the ATLAS Muon Monitored Drift Tube chambers

Content Provider	IEEE Xplore Digital Library
Author	Andreazza, W. Avramidou, R. Banhidi, Z. Berbiers, J. Fabjan, C.W. Lampl, W. Rangod, S. Rohrbach, F. Sbrissa, E. Schuh, S. Sedykh, Y. Smirnov, Y. Woudstra, M.
Copyright Year	2002
Description	Author affiliation: EP Div., CERN, Geneva, Switzerland (Andreazza, W.)
Abstract	The ATLAS collaboration has recently started the construction of its detector for the LHC at CERN. An essential part of its Muon Spectrometer is based on Monitored Drift Tube (MDT) technology. It consists of about 1200 large muon drift chambers that will be built at 13 institutes spread all over the world. The MDT chambers require an exceptional mechanical construction accuracy of better than 20 /spl mu/m. The construction quality of the chambers is controlled using X-ray tomography. A dedicated X-ray tomograph has been developed at CERN since 1996. This instrument measures the chamber wire positions with a 2 /spl mu/m statistical and 2 /spl mu/m systematic uncertainty over the full tomograph working area of 2.2 /spl times/ 0.6 m/sup 2/. During the four-year construction phase of the MDT chambers, the X-ray tomograph will be the key tool for ensuring consistent chamber production quality with a sampling rate of /spl sim/15%. To achieve this program efficiently, an effort for complete automation of the tomograph operation is underway. Since mid-2000, first modules from 11 of the construction sites have been measured. Results from this site certification process have demonstrated the essential role of the X-ray tomograph in assessing the validity of the various construction steps.
Starting Page	914
Ending Page	918
File Size	1661605
Page Count	5
File Format	PDF
ISBN	0780373243
ISSN	10823654
DOI	10.1109/NSSMIC.2001.1009704
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2001-11-04
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Quality control Mesons Monitoring Collaboration Detectors Large Hadron Collider Spectroscopy X-ray tomography Instruments Area measurement
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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