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  • Other Sources  (435)
  • SPACE RADIATION  (435)
  • 1970-1974  (435)
  • 1900-1904
  • 1973  (435)
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  • Other Sources  (435)
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  • 1970-1974  (435)
  • 1900-1904
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  • 1
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    Skylab and the Sun (1973)
    In:  CASI
    Details
    Publication Date: 2019-08-28
    Description: Articles pertaining to the solar studies and the Skylab program are presented, with emphasis on the usefulness of the Apollo Telescope Mount (ATM) program. A description of Skylab objectives and key mission events is included along with articles about the sun. Skylab solar studies which are reported include these topics: ATM solar observatory, scientific instruments, crew operations and crew training, and the joint observing program. The Skylab associated solar programs are also reported.
    Keywords: SPACE RADIATION
    Type: NASA-EP-119
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 2
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    The quiet sun (1973)
    In:  CASI
    Details
    Publication Date: 2019-08-28
    Description: An up-to-date textbook of solar physics is presented. The solar structure and processes, and the interior are described along with the photosphere, the chromosphere, and the corona. The strongest Fraunhofer lines, visible coronal lines, and coronal UV, XUV, and X-ray lines are listed.
    Keywords: SPACE RADIATION
    Type: NASA-SP-303 , LC-72-600092
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 3
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    Cosmic ray isotopes (1973)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: The isotopic composition of cosmic rays is studied in order to develop the relationship between cosmic rays and stellar processes. Cross section and model calculations are reported on isotopes of H, He, Be, Al and Fe. Satellite instrument measuring techniques separate only the isotopes of the lighter elements.
    Keywords: SPACE RADIATION
    Type: NASA-CR-138166 , SRL-73-15 , Intern. Cosmic Ray Conf.; Aug 26, 1973; Denver
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    NASA TECHNICAL REPORTS
  • 4
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    Gamma-ray astrophysics (1973)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: Conference papers on gamma ray astrophysics are summarized. Data cover the energy region from about 0.3 MeV to a few hundred GeV and theoretical models of production mechanisms that give rise to both galactic and extragalactic gamma rays.
    Keywords: SPACE RADIATION
    Type: NASA-SP-339 , Apr 30, 1973 - May 02, 1973; Greenbelt, MD; United States
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    NASA TECHNICAL REPORTS
  • 5
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    Goddard contributions to the Los Alamos Conference on Transient Cosmic Gamma and X-ray Sources (1973)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: Conference papers, covering the orgin and instrumentation for measuring the position of cosmic gamma ray bursts, are presented. Summaries cover gamma ray detectors, energy speectra, and the stellar super flare hypothesis.
    Keywords: SPACE RADIATION
    Type: NASA-TM-X-70507 , X-660-73-315 , Sep 20, 1973 - Sep 21, 1973; Los Alamos, NM; United States
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    NASA TECHNICAL REPORTS
  • 6
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    Cosmic soft gamma-ray bursts and the stellar super-flare hypothesis (1973)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: Cosmic soft gamma ray bursts are discussed, and the stellar super-flare hypothesis is supported. Previous predictions and observations of gamma ray bursts are cited. Studies show that it is plausible that the bursts are caused by the bremsstrahlung of electrons accelerated to high energies in a stellar flare event. Possible observational consequences are listed for the stellar flare hypothesis.
    Keywords: SPACE RADIATION
    Type: NASA-TM-X-70513 , X-641-73-333 , Conference on Transient Cosmic Gamma-Ray and X-Ray Sources; Sep 20, 1971 - Sep 21, 1971; Los Alamos, NM; United States
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    NASA TECHNICAL REPORTS
  • 7
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    Solar energy to meet the nation's energy needs (1973)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: Solar energy, being a non-depleting clean source of energy, is shown to be capable of providing energy in all the forms in which it is used today. It can be used to generate electricity, for heating and cooling buildings, and for producing clean renewable gaseous, liquid and solid fuel. There is little question of the technical feasibility for utilizing solar energy. The chief problem is rapidly providing innovative solutions that are economically competititive with other systems.
    Keywords: SPACE RADIATION
    Type: NASA-TM-X-68290 , E-7625 , Energy Facts for Concerned Citizens: A Natl. Forum; Apr 26, 1973 - Apr 27, 1973; Boise, ID; United States
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    NASA TECHNICAL REPORTS
  • 8
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    A correlative study of SSC's, interplanetary shocks, and solar activity (1973)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: A total of 93 SSC's were examined during the four year period from 1968 to 1971 at and near the peak of the solar activity cycle. Of the 93 SSC's 81 could be associated with solar activity, such as solar flares and radio bursts of Type II and Type IV. The mean propagation speeds of these flare-associated events ranged from 400 to 1000 km/sec with an average speed of 600-700 km/sec. Disturbances associated with 48 of the SSC's have been studied in detail using the corresponding interplanetary (IP) magnetic field, and plasma data when they were available. It was found that 41 of the 48 disturbances corresponded to IP shock waves, and the remaining seven events were tangential discontinuities. Thirty percent of the IP shocks had thick structure (i.e. the magnetic field jump across the shock occurred over a distance much greater than 50 proton Larmor radii). Also given is a statistical study of the gross geometry of a typical or average shock surface based on multiple spacecraft sightings and their relative orientation with respect to the solar flare. It is suggested that a typical shock front propagating out from the sun at l AU has a radius of curvature on the order of l AU. Also given are some general properties of oblique IP flare-shocks.
    Keywords: SPACE RADIATION
    Type: NASA-TM-X-70499 , X-692-73-322 , Conference on Flare-produced Shock Waves in the Corona and Interplanetary Space; Sep 11, 1972 - Sep 14, 1972; Boulder, CO; United States
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    NASA TECHNICAL REPORTS
  • 9
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    Lunar orbital gamma ray measurements from Apollo 15 and Apollo 16. (1973)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: Examination of the data obtained by gamma-ray spectrometers on the Apollo 15 and Apollo 16 spacecraft has been carried out in part by summing up broad regions of the energy spectrum. The most instructive of these energy regions is 0.55 to 2.75 MeV, where the difference in count rates observed can be accounted for mainly by variations in the Th, U, and K content of the surface layers. The highest values are found in Mare Imbrium and Oceanus Procellarum, where a good deal of local variation is observed. By contrast, little increase is seen in the eastern maria surveyed compared with count rates in highland areas. The broad highland regions are low in radioactivity, but there is a measurable rise near the southernmost latitude on the far side. In addition to the radioactive lines, gamma-ray lines which can be ascribed to O, Si, Fe, Mg, and Al have been identified.
    Keywords: SPACE RADIATION
    Type: Plenary Meeting on Space research XIII; May 10, 1972 - May 24, 1972; Madrid; Spain
    Format: text
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    NASA TECHNICAL REPORTS
  • 10
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    Gamma ray and neutron measurements and their relation to the solar flare problem. (1973)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: In order to interpret recent observations of solar gamma ray lines from OSO-7, we consider the possible nuclear reactions which can occur and assess their relative importance in the solar environment. This analysis shows that about 3 times 10 to the 32nd power protons (energy greater than 30 MeV) must have been produced during the initial phase of the flare on Aug. 4, 1972. The ability to determine the temperature in the solar region where the positrons annihilate has been estimated from the 0.51 MeV line width, giving a temperature there of less than 7 million deg K. The major conclusions from these observations are discussed and some outstanding problems are mentioned. Finally, requirements for the next generation of solar gamma ray and neutron experiments are discussed.
    Keywords: SPACE RADIATION
    Type: Plenary Meeting on The near ultraviolet spectrum of early type stars obtained with S 59; May 23, 1973 - Jun 05, 1973; Konstanz; Germany
    Format: text
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    NASA TECHNICAL REPORTS
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