X-ray astronomy
X-Ray astronomy the 1980's
X-Ray Astronomy with Astro-E Introduction
X-ray astronomy with ultra-high-angular resolution
X-ray calibration of telescopes on board the ASTRO-E satellite
X-ray capillary system for hard x-ray astronomy
X-ray CCD calibration for the AXAF CCD Imaging Spectrometer
X-ray characteristics of the Italian X-Ray Astronomy Satellite (SAX) flight mirror units
X-ray characterization of an XMM mandrel at the European Synchrotron Radiation Facility
X-ray characterization of eROSITA mirror shells using out-of-focus images
X-ray deflector: theory, design, and applications
X-ray evolving universe spectroscopy mission (XEUS)
X-ray evolving universe spectroscopy mission (XEUS): narrow-field imaging high-resolution spectrometer instrument: I
X-ray evolving universe spectroscopy mission (XEUS): narrow-field imaging high-resolution spectrometer: II (1 to 10 keV)
X-ray evolving universe spectroscopy mission (XEUS): requirements of the x-ray focal plane instruments
X-ray evolving universe spectroscopy mission (XEUS): x-ray mirror design and technology
X-ray Flashes and Their Relation to Gamma-Ray Bursts
X-ray fluorescence analysis based on Kumakhov optics
X-ray flux concentrating optics for improving the performance of light element energy dispersive spectroscopy
X-ray focusing using microchannel plates