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  • Weitere Quellen  (7)
  • ASTRONOMY  (6)
  • SPACECRAFT INSTRUMENTATION  (1)
  • 1975-1979  (7)
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  • 1
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    Mapping X-ray heliometer for Orbiting Solar Observatory-8 (1975)
    In:  CASI
    Details
    Publikationsdatum: 2019-06-27
    Beschreibung: An instrument combining mechanical collimators and proportional counter detectors was designed to record solar X-rays with energies of 2-30 keV with good temperal, spectral, and spatial resolution. The overall operation of the instrument is described to the degree needed by personnel who interact with the experimenter during SC/experiment interfacing, experiment testing, observatory integration and testing, and pre/post launch data processing. The general layout of the instrument is given along with a summary of the instrument characteristics.
    Schlagwort(e): SPACECRAFT INSTRUMENTATION
    Materialart: NASA-CR-144710
    Format: application/pdf
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    NASA TECHNICAL REPORTS
  • 2
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    X-ray structure of the Puppis supernova remnant (1976)
    In:  Other Sources
    Details
    Publikationsdatum: 2019-06-27
    Beschreibung: The angular distribution of X-ray emission from the Puppis supernova remnant was investigated with a focusing X-ray collector during a rocket observation. Extent of the X-ray emitting region along the direction of scan is 42 (+ or - 4) arcmin and is well correlated with the size of the Puppis A radioshell. The existence of a feature within the remnant is confirmed whose X-ray emission is strongly localized, and its spectrum is observed to be softer than the rest of the remnant.
    Schlagwort(e): ASTRONOMY
    Materialart: Astrophysical Journal; 207; Aug. 1
    Format: text
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    NASA TECHNICAL REPORTS
  • 3
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    Paraboloidal X-ray telescope mirror for solar coronal spectroscopy (1979)
    In:  Other Sources
    Details
    Publikationsdatum: 2019-07-13
    Beschreibung: The telescope mirror for the X-ray Spectrograph Spectrometer Telescope System is a sixty degree sector of an extreme off-axis paraboloid of revolution. It was designed to focus a coronal region 1 by 10 arc seconds in size on the entrance slit of the spectrometer after reflection from the gold surface. This paper discusses the design, manufacture, and metrology of the mirror, the methods of precision mechanical metrology used to focus the system, and the mounting system which locates the mirror and has proven itself through vibration tests. In addition, the results of reflection efficiency measurements, alignment tolerances, and ray trace analysis of the effects of misalignment are considered.
    Schlagwort(e): ASTRONOMY
    Materialart: Space optics: Imaging X-ray optics workshop; May 22, 1979 - May 24, 1979; Huntsville, AL
    Format: text
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    NASA TECHNICAL REPORTS
  • 4
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    X-ray spectrometer spectrograph telescope system (1979)
    In:  Other Sources
    Details
    Publikationsdatum: 2019-07-13
    Beschreibung: A new sounding rocket payload that has been developed for X-ray spectroscopic studies of the solar corona is described. The instrument incorporates a grazing incidence Rowland mounted grating spectrograph and an extreme off-axis paraboloic sector feed system to isolate regions of the sun of order 1 x 10 arc seconds in size. The focal surface of the spectrograph is shared by photographic and photoelectric detection systems, with the latter serving as a part of the rocket pointing system control loop. Fabrication and alignment of the optical system is based on high precision machining and mechanical metrology techniques. The spectrograph has a resolution of 16 milliangstroms and modifications planned for future flights will improve the resolution to 5 milliangstroms, permitting line widths to be measured.
    Schlagwort(e): ASTRONOMY
    Materialart: Space optics: Imaging X-ray optics workshop; May 22, 1979 - May 24, 1979; Huntsville, AL
    Format: text
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    NASA TECHNICAL REPORTS
  • 5
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    Cosmic X-ray telescope for ARIES rocket observations (1979)
    In:  Other Sources
    Details
    Publikationsdatum: 2019-07-13
    Beschreibung: A rocket-borne Wolter Type I X-ray telescope having a focal length of 2.3m, an entrance aperture of 66cm and a geometrical area of 380cm2 is nearing completion. The telescope mirrors are formed by diamond turning their figures into forged aluminum substrates of 5083 alloy. These diamond-turned substrates are subsequently plated with a thin coating of electroless nickel and polished to obtain the final X-ray reflecting surfaces. Details of the rocket payload, the X-ray telescope, its calculated response and the experience gained in selecting the mirror substrate alloy are discussed and the current status of the telescope is reviewed.
    Schlagwort(e): ASTRONOMY
    Materialart: Space optics: Imaging X-ray optics workshop; May 22, 1979 - May 24, 1979; Huntsville, AL
    Format: text
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    NASA TECHNICAL REPORTS
  • 6
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    Solar X-ray spectroscopy with a Bent Crystal Spectrometer /BCS/ (1977)
    In:  Other Sources
    Details
    Publikationsdatum: 2019-07-13
    Beschreibung: A high-resolution Bent Crystal Spectrometer (BCS) which provides simultaneous and continuous time coverage of a range of wavelengths is described; its application to spectral studies of solar X-ray emission is discussed. Design of the BCS and its accompanying position-sensitive detector is considered. Calibrations of the crystal curvature, the angle between a crystal reference plane and the collimator axis, and the position response of the position-sensitive proportional counter in determining absolute wavelengths are also mentioned. An active solar region spectrum obtained during an airborne BCS test is compared to wavelength data derived from theory or previous experiments, and excellent agreement is found. Specifications for a BCS system to be used in the Solar Maximum Mission satellite of 1979 are given.
    Schlagwort(e): ASTRONOMY
    Materialart: Plenary Meeting; Jun 07, 1977 - Jun 18, 1977; Tel Aviv; Israel
    Format: text
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    NASA TECHNICAL REPORTS
  • 7
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    Rocket observations of the Perseus X-ray source (1975)
    In:  Other Sources
    Details
    Publikationsdatum: 2019-07-13
    Beschreibung: The spectrum and angular distribution of soft X-ray emission from the source in the Perseus cluster has been observed. A prominent feature of this source is a point-like component at the position of NGC 1275. Preliminary analysis indicates that the spectrum of this source does not rise as steeply at energies below 1 keV as has been reported previously.
    Schlagwort(e): ASTRONOMY
    Materialart: International Conference on X-Rays in Space - Cosmic, Solar, and Auroral X-Rays, Calgary; Aug 14, 1974 - Aug 21, 1974; Alberta; Canada
    Format: text
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    NASA TECHNICAL REPORTS
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