Construction and testing of a shortperiod non-conventional PPM undulator in the context of the SparX initiative

The Sparx initiative includes an R & D on the definition, design and construction of non-conventional magnetic undulator. In this paper we describe the features and technical solutions adopted for the construction of a 1.4 m long, variable gap,short period, non conventional magnetic undulator. Particular emphasis is dedicated to the technical solutions adopted for the assembly and regulation of the magnetic blocks, and the system adopted for the measurement and characterization of the device. Finally, some scenarios for possible use of the undulator on Sparc (ENEA / INFN / CNR) or Fermi (Elettra) beam lines are discussed. Presently, the delivery/testing of the device is scheduled for Summer/Fall 2012.