1. Development of grazing-incidence X-ray optics @ INAF/OAB and proposed optics for XIPE
G. Tagliaferri, D. Spiga, G. Pareschi, et al.
INAF – Osservatorio Astronomico di Brera
Gianpiero Tagliaferri – INAF/OABr
XIPE – ESA/M4 -Roma

2. Gianpiero Tagliaferri – INAF/OABr
Simbol-X design, study and development
WFXT Feasibility Study
eROSITA
SPECTRUM X-Gamma
CNR - Milano
Gianpiero Tagliaferri – INAF/OABr
XIPE – ESA/M4 -Roma

3. Gianpiero Tagliaferri – INAF/OABr
Beppo-SAX soft X-ray (0.1 – 10 keV) concentrators
Wolter I double-cone approx. – Au coating
4 modules – 30 shells/mod.
F.L. = 180 cm Max diam = 16.1 cm
Aeff @ 1 keV = 85 cm2 /module
HEW= 60 arcsec (corresponding to the double-cone geom. aberration!)
GRB970228
Gianpiero Tagliaferri – INAF/OABr
XIPE – ESA/M4 -Roma

4. Gianpiero Tagliaferri – INAF/OABr
JET-X (optics ready since1996) / SwiftXRT(2004) optics
Wolter I profile – Au coating (pathfinder of XMM)
2 mod. (JET-X) / 1 mod (Swift) – 12 shells/mod.
F.L. = 350 cm - Max diam = 30 cm
Aeff @ 1 keV= 150 cm2 /module
HEW= 15 arcsec
Source separation: 20”
Gianpiero Tagliaferri – INAF/OABr
XIPE – ESA/M4 -Roma

5. Gianpiero Tagliaferri – INAF/OABr
SWIFT-XRT Layout
XRT mating with Swift spacecraft
Gianpiero Tagliaferri – INAF/OABr
XIPE – ESA/M4 -Roma

6. The optic wheel necessary to mount the mirror modules
POLARIX
The optic wheel necessary to mount the mirror modules
Gianpiero Tagliaferri – INAF/OABr
XIPE – ESA/M4 -Roma

7. Gianpiero Tagliaferri – INAF/OABr
Fabrication of a thin (130 mm) MS from the largest JET-X mandrel
To verify the imaging capabilities of thin Ni electroformed mirrors, we realized a 0.13 mm Au coated shell exploiting the largest JET-X mandrel
 the thickness has been diminished of a factor 8.5 with respect JET-X/SWIFT
 = 30 cm Height = 60 cm
Focal Length = 3.5 m
Thickness = 0.13 mm Mirror mass = 660 g
Gianpiero Tagliaferri – INAF/OABr
XIPE – ESA/M4 -Roma

8. Gianpiero Tagliaferri – INAF/OABr
X-ray imaging test of a thin JET-X mirror shell (July ‘02)
diam. = 30 cm
thickness = 130 mm
wall thickness 8.5 times less than JET-X
HEWmeas = 25 arcsec
X-Ray Panter-MPE (July ’02) - E = 1.5 keV
Gianpiero Tagliaferri – INAF/OABr
XIPE – ESA/M4 -Roma

9. Multilayer coated Ni mirror shells tested at Panter
1 keV
40 keV
Energy (KeV)
HEW (arcsec)
1.5 23 8 24 20 27 35 31 50 33
Gianpiero Tagliaferri – INAF/OABr
XIPE – ESA/M4 -Roma

10. Proposed new Mirror design for XIPE
3-mirror modules with FL=3.5 m
27 shells with the same thickness as for NHXM, diameter min=183 mm, max=400 mm
Electroformed in Ni (or NiCo) with Ir+C coating
Total weight of 1 MM is ~40 kg (shells 30kg, 30% structure, total for 3MM=120 kg)
Gianpiero Tagliaferri – INAF/OABr
XIPE – ESA/M4 -Roma

11. Proposed new Mirror design for XIPE
3500
Gianpiero Tagliaferri – INAF/OABr
XIPE – ESA/M4 -Roma

12. Gianpiero Tagliaferri – INAF/OABr
CONCLUSIONS
3 MMs with ~1400 cm2 at 1-3 keV and 750 cm2 at 8 keV
Same shell properties as the ones developed for the Simbol-X & NHXM programs
Same technology and integration scheme used for BeppoSAX, XMM-Newton, Swift, eROSITA, so TRL≥6?
Gianpiero Tagliaferri – INAF/OABr
XIPE – ESA/M4 -Roma