The X-ray mirror and telescope assembly (IMAGE)

Nagoya University

The X-ray mirror and telescope assembly — Caption

The nickel X-ray mirror, 60 mm across and 200 mm tall. The mirror has two sections: an upper paraboloidal section and a lower hyperboloidal section, which work together to reflect X-rays twice and focus them onto a detector. Center: A cross-section diagram showing how the mirror fits inside the complete telescope assembly, standing 250 mm tall. Right: The completed telescope assembly, ready for launch aboard the FOXSI-4 sounding rocket.

Credit

Fujii et al., 2026

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CC BY

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