Physics – Optics
Scientific paper
Sep 1999
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999spie.3766..310c&link_type=abstract
Proc. SPIE Vol. 3766, p. 310-319, X-Ray Optics, Instruments, and Missions II, Richard B. Hoover; Arthur B. Walker; Eds.
Physics
Optics
1
Scientific paper
In this paper we will report on an activity undertaken with the aim of setting up a method for the realization of hard x-ray multilayer mirror astronomical optics based on a replication process. Our approach foresees the direct deposition of the multilayer stack on to the mandrel by ion-beam sputtering followed by the deposition of the Nickel by means of an electrolytic bath. The Nickel gives the mechanical strength to the mirrors. All deposited materials are later on separated from the mandrel by cooling it. This is a natural extension of the method already successfully used for the production of the soft x-ray optics with Au monolayer coating for the SAX, JET-X and XMM telescopes. This method is particularly convenient because permits not only of keeping the mirror supports very thin but also of achieving good imaging performances. Here we will present the main features of this method and the x-ray reflectivity and topographic results obtained from a first prototype flat sample we produced following this way.
Cerutti P.
Citterio Oberto
Lagana Paolo
Mazzoleni Franco
Mengali A.
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