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  • 1980-1984  (3)
  • 1
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    Unknown
    Photography and photographic-photometry of the solar aureole (1983)
    In:  Other Sources
    Details
    Publication Date: 2019-06-28
    Description: This paper describes procedures for taking solar aureole photographs with conventional small format (35- or 70-mm) cameras and films and discusses photographic-photometry techniques for obtaining accurate solar aureole radiance measurements from these photographs, the measurements being used for retrieving atmospheric aerosol characteristics. The photographic data reduction techniques discussed here include sensitometry, densitometry, off-axis illumination distribution measurement, photogrammetry and photometry relations, etc. Comparison tests show that photographic measurements of the solar aureole radiance agree well with simultaneous photoelectric measurements.
    Keywords: SOLAR PHYSICS
    Type: Applied Optics (ISSN 0003-6935); 22; June 1
    Format: text
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    NASA TECHNICAL REPORTS
  • 2
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    Unknown
    Miniature personal UV solar dosimeter (1981)
    In:  Other Sources
    Details
    Publication Date: 2019-06-28
    Description: Small light-powered meter measures accumulated radiation in ultraviolet or other selected regions. Practical advantages are device's low cost, small size, accuracy, and adaptability to specific wave-band measurements. Medical applications include detection of skin cancer, vitamin D production, and jaundice. Dosimeter also measures sunlight for solar energy designs, agriculture and meteorology, and monitors stability of materials and environmental and occupational lighting.
    Keywords: PHYSICAL SCIENCES
    Type: LAR-12469 , NASA Tech Briefs (ISSN 0145-319X); 5; 3; P. 300
    Format: text
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    NASA TECHNICAL REPORTS
  • 3
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    Unknown
    Miniature spectrally selective dosimeter (1980)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: A miniature spectrally selective dosimeter capable of measuring selected bandwidths of radiation exposure on small mobile areas is described. This is achieved by the combination of photovoltaic detectors, electrochemical integrators (E-cells) and filters in a small compact case which can be easily attached in close proximity to and substantially parallel to the surface being measured. In one embodiment two photovoltaic detectors, two E-cells, and three filters are packaged in a small case with attaching means consisting of a safety pin. In another embodiment, two detectors, one E-cell, three filters are packaged in a small case with attaching means consisting of a clip to clip over a side piece of an eye glass frame.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Format: application/pdf
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    NASA TECHNICAL REPORTS
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