Integrated multimagnet systems

Abstract

The trend for the design of the magnet system for modern synchrotron light sources is moving towards smaller magnet apertures with a reduction of the magnet dimensions as a consequence. There are several reasons for this: to increase the number of focusing cells in a given ring circumpherence to increase the multipole field strengths to reduce the total cost of the magnet and vacuum-systems. This chapter descibes the technology of integrating several magnets in a common steel block. Several new system properties are presented in the chapter: A precise internal alignment of the individual magnets in the common block achieved by utilizing Computer Numeric Control (CNC) machines. A reduced production and alignment cost. Exclusion of separate girders. The intergrated block design yields a high rigidity to mass ratio, pushing up vibration eigen-frequencies. This chapter first descibes the MAX IV integrated multi-magnet system in quite some detail. The results of the characterisation of the system are presented at the end of the chapter.