Characterization Of The Mandrels Used To Produce Replicated Prototype Mirrors For The Italian X-Ray Satellite SAX

We present the results obtained during the characterization of the mandrels used for the replica of a prototype series of double cone mirrors for the SAX project. In the first part of this paper we will summarize the results concerning the geometry of the mandrels and the metrology involved. We will then give a characterization of the mandrels in terms of their microroughness.