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Figure 1
Sketch of the geometry used for modelling the magnetic field measurement. The baseline figure represents the cryostat and it is modified from Marchetti et al. (2022bBB21). On the axis on the left, the temperature values in the cryostat for different effective positions of the Hall probe zHP are shown. The portion of the cryostat filled with liquid helium is highlighted in yellow. On the right side of the sketch the three regions defined for the model of the rod contraction are shown, for the specific depicted position of the Hall probe. Region 1 represents the part of the rod that is immersed in the liquid helium. Region 2 represents the part of the rod that is located between the liquid helium surface and the first thermal shield of the lid. Region 3 represents the part of the rod that is located between the first thermal shield and the thermal break at the upper flange of the linear motion system.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
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