Optics for the x-ray imaging concentrators aboard the x-ray astronomy satellite SAX.
The scientific instrumentation onboard the Italian satellite for x-ray astronomy (SAX) foresees x-ray imaging concentrators operating in the 0.1-10-keV energy range with a spatial resolution of 1 min of arc. The optics is composed of thirty confocal-nested very thin double-cone mirrors. To achieve good optical quality and to allow the construction of several concentrators at an acceptable cost, a replica technique by electroforming the mirrors from masters is used. This paper presents the results obtained from a set of electroformed mirrors mounted on a concentrator prototype.
Citterio
O
O
Bonelli
G
G
Conti
G
G
Mattaini
E
E
Santambrogio
E
E
Sacco
B
B
Lanzara
E
E
Brauninger
H
H
Burkert
W
W