ProtoDUNE Single-Phase deformation measurements

The protoDUNE R&D program at CERN aims to construct and operate two different Liquid Argon Time Projection Chamber detectors as prototype for the DUNE experiment. One of these, protoDUNE Single-Phase, operates using argon only in its liquid state. During the commissioning of this detector, detailed mechanical measurements of the cryostat containing the detector were done to validate design choices and finite element analysis models for the future DUNE detector. In this report we describe the efforts that went into the analysis of the data of various deformation sensors and several difficulties that were encountered during this process, leading to the conclusion that the current best models give a rather good description of part of the deformations, while underperforming for measurements in more complex locations on the structure.