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Related to X-ray telescope: ultraviolet telescope
X-ray telescopeAn instrument carried above the Earth's atmosphere by an X-ray satellite, etc., and by means of which X-rays from space can be detected and recorded. See also CCD; grazing incidence; microchannel plate detector; proportional counter.
x-ray telescope[′eks ‚rā ′tel·ə‚skōp]
An instrument designed to detect x-rays emanating from a source outside the earth's atmosphere and to resolve the x-rays into an image; they are carried to high altitudes by balloons, rockets, or space vehicles; although several types of x-ray detector, involving gas counters, scintillation counters, and collimators, have been used, only one, making use of the phenomenon of total external reflection of x-rays from a surface at grazing incidence, is strictly an x-ray telescope.