Speaker
Dr
Andree Robichaud-Veronneau
(University of Oxford)
Description
The Frequency Scanning Interferometry (FSI) alignment system has been
developed to monitor the movement of the ATLAS SemiConductor Tracker
(SCT) at CERN. Over 800 fibre-coupled interferometers are arranged to
form a geodetic grid of distance measurements between nodes on the
SCT. The full set of interferometers are read out simultaneously and
continuously, also during ATLAS data-taking. Since 2009, the FSI
system has successfully measured sub-micron deformations in the
tracker and contributed to the ATLAS Inner Detector alignment. In this
talk, new modes of data-taking are introduced; the performance and
measurements of the system are discussed; and a new visualiser
application is presented, which has been developed to enable a
qualitative appreciation of the significance of displacement data.
Primary author
Dr
Andree Robichaud-Veronneau
(University of Oxford)
Co-authors
Mr
Adrian Lewis
(University of Oxford)
Dr
Elias Coniavitis
(University of Oxford)
Dr
Elizabeth Gallas
(University of Oxford)
Dr
Katherine Horton
(University of Oxford)
Ms
Lucy Kogan
(University of Oxford)
Mr
Mohamed Dehchar
(University of Oxford)
Dr
Richard Nickerson
(University of Oxford)
Dr
Stephen Gibson
(University of Oxford)
Dr
Zhijun Liang
(University of Oxford)