Results 181 to 190 of about 2,168,923 (219)
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Evaluation of In-Orbit Thermal Performance of X-Ray Astronomy Satellite "Hitomi"
, 2017This study presents the evaluation results of the thermal performance for Japan Aerospace Exploration Agency’s X-ray astronomy satellite (Hitomi) ASTRO-H mission.
N. Iwata +9 more
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Lightweight and high-resolution single crystal silicon optics for x-ray astronomy
Astronomical Telescopes + Instrumentation, 2016We describe an approach to building mirror assemblies for next generation X-ray telescopes. It incorporates knowledge and lessons learned from building existing telescopes, including Chandra, XMM-Newton, Suzaku, and NuSTAR, as well as from our direct ...
Will Zhang +7 more
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Advancements in hard x-ray multilayers for x-ray astronomy
SPIE Optical Engineering + Applications, 2015This paper is focused on recent progress in the development of broad-band multilayer coatings designed for hard X-ray energies, for use in future astronomical telescopes.
D. Windt
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Chi-squared and C statistic minimization for low count per bin data. [Sampling in X ray astronomy]
, 1989Results are presented from a computer simulation comparing two statistical fitting techniques on data samples with large and small counts per bin; the results are then related specifically to X-ray astronomy.
J. Nousek, David Shue
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Uniformity of Kilo-Pixel Arrays of Transition-Edge Sensors for X-ray Astronomy
IEEE transactions on applied superconductivity, 2015We are developing kilo-pixel arrays of transition-edge sensor (TES) microcalorimeters for use in future laboratory and space based X-ray astrophysics experiments. These arrays are required to achieve an energy resolution of ΔEFWHM
S. Smith +12 more
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Design Parameters of Paraboloid-Hyperboloid Telescopes for X-ray Astronomy.
Applied Optics, 1972We have evaluated the principal optical characteristics of paraboloid-hyperboloid x-ray telescopes by a ray-tracing procedure; we find that our results for resolution, focal plane curvature, and finite source distance effects may be approximated in terms
L. Vanspeybroeck, R. Chase
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X-ray characterization of curved crystals for hard x-ray astronomy
Europe Optics + Optoelectronics, 2015Among the methods to focus photons the diffraction in crystals results as one of the most effective for high energy photons. An assembling of properly oriented crystals can form a lens able to focus x-rays at high energy via Laue diffraction in ...
E. Buffagni +4 more
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Instrumental Technique in X-Ray Astronomy
, 1975This review is confined to nonfocusing, high-sensitivity counter techniques used in the detection of cosmic photons in the 0.20 to 300 keV range. The status of x-ray astronomy, photon interactions, detector principles and applications, sensitivity ...
L. Peterson
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Optics for the x-ray imaging concentrators aboard the x-ray astronomy satellite SAX.
Applied Optics, 1988The 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.
O. Citterio +8 more
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