Technical Design Report Super Fragment Separator

DRAFT
At present the beamline height of the Super-FRS is planned to be 2m above the floor. Together
with a magnet height of additional ~1m (e.g. superferric dipole magnet), a working height for
maintenance or alignment is reached, which is practicable but not very user-friendly. This has to be
taken into account, when estimating time - and consequential costs - that is needed for any survey
and alignment activity.
Furthermore, support frames and floor conditions have to be planned very carefully to avoid high
lever arm effects. Small footprints compared to a high beamline level can cause big tangential
deviations of the beam (respectively of the magnet) due to little deformations of the floor.
When two rings or a machine part and an experimental device will finally share the same building
without any constructional separation, the installation of the last will definitely affect the position
of the components of the first that will possibly be installed and initially aligned in a previous phase.
Both machines need of course all fundamental survey and alignment processes, but a realignment
of the components that were set up sooner will be required when the installation of the elements of
the other machine is finished. It is therefore recommended to survey additionally a common reference
network for both, as a basis for the initial precise alignment of the last installed machine and
the re-alignment of the components of the first. This fact must find its way into any time schedule.
2.4.A4 Cryogenics
2.4.A4.1 Introduction
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