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  • 1
    facet.materialart.
    Unknown
    Use of graphite epoxy composites in the Solar-A Soft X-Ray Telescope (1990)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: This paper describes the use of composite materials in the Soft X-Ray Telescope (SXT). One of the primary structural members of the telescope is a graphite epoxy metering tube. The metering tube maintains the structural stability of the telescope during launch as well as the focal length through various environmental conditions. The graphite epoxy metering tube is designed to have a negative coefficient of thermal expansion to compensate for the positive expansion of titanium structural supports. The focus is maintained to + or - 0.001 inch by matching the CTE of the composite tube to the remaining structural elements.
    Keywords: ASTRONOMY
    Type: Advances in Optical Structure Systems; Apr 16, 1990 - Apr 19, 1990; Orlando, FL; United States
    Format: text
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    NASA TECHNICAL REPORTS
  • 2
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    Unknown
    Imaging capabilities of SXT for Solar-A (1991)
    In:  Other Sources
    Details
    Publication Date: 2019-07-12
    Description: The present study characterizes the Soft X-ray Telescope (SXT), a grazing-incidence solar X-ray telescope which will be flown on the Japanese Solar-A satellite. X-ray tests showed that the SXT mirror meets or exceeds design requirements. SXT advantages over Skylab are: improved time resolution (not less than 0.5 s), greatly decreased mirror scatter, coaligned aspect telescope to intersperse images of sunspots and magnetic plage, and digital data readout.
    Keywords: ASTRONOMY
    Type: of the COSPAR 28th Plenary Meeting, The Hague, Netherlands, June 25-July 6, 1990. A91-47654 20-92) Advances in Space Research (ISSN 0273-1177); 69-72
    Format: text
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    NASA TECHNICAL REPORTS
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