Geodetic deformation measurement and analysis of the ATLAS experimental cavern at CERN
نویسندگان
چکیده
Abstract Caverns for large physics detectors, such as the one Large Hadron Collider experiments, sit nearly 100 m underground and measure several tens of meters in length, width height. The deformation cavern base slab over decades has a direct influence on relative alignment detectors with respect to accelerator. expected long-term movements are larger than fine adjustment accelerators. In this paper, measured deformations ATLAS experiment's main floor lateral walls 20 years have been analysed. measurement series performed various time intervals getting down half year. used techniques, polar method (total station laser tracker) precise levelling, allow obtain sub-millimetre precision. Even if significantly (four times) lower compared predictions civil engineering consultants at moment construction, ones reach values up 5.0 mm 14.7 walls.
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ژورنال
عنوان ژورنال: Journal of Instrumentation
سال: 2022
ISSN: ['1748-0221']
DOI: https://doi.org/10.1088/1748-0221/17/11/p11041