Status of FAIR SIS100 and HEBT

With the goal to built and procure the first preser- ies unit of the cryomagnetic system of SIS100, the design of the dipole module has been modified and completed. In context with the completion of the design of the dipole module, the overall lattice cell has been optimized with respect to the cryostat inter- facing. All cryostat distances could be equalized with the advantage that all connecting cryostats and their heat shields are now the same. The longer dis- tance between the two dipoles of each lattice cell improves also the accommodation of the slightly elongated dipole chamber and the connecting beam line bellows. In order to maintain the acceptance of SIS100, the horizontal aperture of the elongated vac- uum chamber has been increased from 115 to 120 mm. The new distance enables an installation of the adsorption pumps for hydrogen pumping, which are foreseen in each second lattice cell, in between the dipole magnets.