Technical Design Report Super Fragment Separator

DRAFT
• Precise three-dimensional reference network measurements including component positions
for each individual machine (accuracy ± 0.1 mm)
• Relative alignment of neighbouring magnets, beam diagnostic devices and other components
that have to be positioned to tight tolerances
• Precise three-dimensional measurement for quality control in order to detect failings in
initial alignment or meanwhile occurred deformation
Independent of the methods that will be used to align any component, it has to be clear, that every
component, which requires alignment, needs to be fiducialized before installing it into the ultimate
FAIR facility (like e.g. the Super-FRS). The basic principles together with important preparatory
work are described in section 2.4.A3.2
The surface network, which is needed for the absolute orientation of the different machines in
space and relative to each other as well as for the strengthening of the tunnel network, calls for the
construction of vertical sight shafts and some concrete pillars. The number and position of shafts
and pillars needed at FAIR site depend on a suitable net design. Appropriate simulation computations
for the estimation of achievable accuracies are reasonable when geometry and position of the
accelerators are finalized. As an example a very preliminary investigation yielded to a number of
three sight shafts for the link between the surface and the SIS100-tunnel network (see Figure
2.4.141).
Figure 2.4.141: Preliminary result of tunnel network simulation (as example the SIS100 was chosen).
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