X-Ray Telescope Onboard Astro-E: Optical Design and Fabrication of Thin Foil Mirrors

X-ray telescopes aboard Phobos-I and Coronas

X-ray telescopes for the ESA XMM spacecraft

X-ray test facilities at Max-Planck-Institut Garching

X-ray test facility for diffraction gratings

X-ray testing Constellation-X optics at MSFC's 100-m facility

X-ray tests and calibrations of the ABRIXAS mirror systems

X-ray thin foil filters at cryogenic temperatures.

X-ray/EUV multilayers - Promise and pitfalls

X-ray/EUV/FUV calibration of photographic films for solar research

X-wave mediated instability of plane waves in Kerr media

X-waves Generated at Second Harmonic

XAO coronagraphy with the High-Order Test bench

Xenia: cosmo-chemical evolution of the Universe

XEUS mission reference design

XEUS: The x-ray evolving universe spectroscopy mission

XEUS: X-ray Evolving Universe Spectroscopy

Xinetics low-cost deformable mirrors with actuator replacement cartridges

XMM flight-mirror-modules environmental and optical testing

XMM space telescope: development plan for the lightweight replicated x-ray gratings