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  • Analytical Chemistry and Spectroscopy  (591)
  • SPACE RADIATION  (535)
  • 1975-1979  (518)
  • 1970-1974  (608)
Collection
Keywords
Publisher
Years
Year
  • 1
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    Pioneer 10 observations of the solar wind interaction with Jupiter (1974)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: Detailed analysis of the Pioneer 10 plasma analyzer experiment flight data during the Jupiter flyby in late November and early December 1973 has been performed. The observations show that the interaction of Jupiter's magnetic field with the solar wind is similar in many ways to that at earth, but the scale size is over 100 times larger. Jupiter is found to have a detached standing bow shock wave of high Alfven Mach number. Like the earth, Jupiter has a prominent magnetopause that deflects the magnetosheath plasma and excludes its direct entry into the Jovian magnetosphere. Unlike that of the earth, the sunward hemisphere of Jupiter's outer magnetosphere is found to be highly inflated with thermal plasma and a high-beta region that is highly responsive to changes in solar wind dynamic pressure.
    Keywords: SPACE RADIATION
    Type: Journal of Geophysical Research; 79; Sept. 1
    Format: text
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    NASA TECHNICAL REPORTS
  • 2
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    Pioneer 10 observations of the solar wind interation with Jupiter (1974)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: Pioneer 10 Plasma Analyzer experiment flight data during the Jupiter flyby are presented. The observations show that the interaction of Jupiter's magnetic field with the solar wind is similar in many ways to that at earth, but the scale size is over 100 times larger. Jupiter is found to have a detached standing bow shock wave of high Alfven Mach number. Jupiter has a prominent magnetopause which deflects the magnetosheath plasma and excludes its direct entry into the Jovian magnetosphere. The sunward hemisphere of Jupiter's outer magnetosphere is found to be highly inflated with thermal plasma and a high beta region which is highly responsive to changes in solar wind dynamic pressure. Observational arguments are presented which tend to discount a thin disklike magnetosphere but, rather, favor a Jovian magnetosphere, albeit probabily considerably flattened as compared to the earth's magnetosphere, yet still with reasonable thickness. Results concerning the shock jump conditions, the magnetosheath flow field and inferred internal magnetospheric plasma are presented.
    Keywords: SPACE RADIATION
    Type: NASA-TM-X-62357
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 3
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    Composition of interplanetary particles at energies from 0.1 to 150 MeV/nucleon, part B (1972)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: During the Apollo 16 mission, a solar flare produced an enormous amount of low-energy nuclei, many orders of magnitude greater than the level inferred from studies of tracks in the window of the Apollo 12 spacecraft during a time when the sun was quiet. The differential energy spectrum of nuclei with Z less than or equal to 6 falls by seven orders of magnitude over the interval from 0.1 to 20 MeV/nucleon, then remains almost flat up to approximately 100 MeV/nucleon. The two parts correspond to contributions from the sun and from galactic cosmic rays. Any maximum in the spectrum occurs below the lowest energy studied.
    Keywords: SPACE RADIATION
    Type: NASA. Lyndon B. Johnson Space Center Apollo 16 Prelim. Sci. Rept.; 8 p
    Format: text
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    NASA TECHNICAL REPORTS
  • 4
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    The ISEE-C gamma ray burst spectrometer (1978)
    In:  Other Sources
    Details
    Publication Date: 2011-08-17
    Description: The technical properties, operation, and expected sensitivity are discussed for an experiment intended to search for narrow lines in the spectra of gamma ray bursts during the ISEE-C mission. At the heart of the experiment is a radiatively cooled germanium solid state photon detector. The instrumentation is capable of storing the entire spectrum of all but the largest bursts in the energy range 0.05-6.5 MeV. In addition, it analyzes the signals from two CsI detectors in two other experiments on the spacecraft and records event time histories from these to a few millisecond accuracy. A background mode permits spectral analysis during quiet times and will allow the determination of physically interesting upper limits for narrow lines in the diffuse gamma ray background radiation.
    Keywords: SPACE RADIATION
    Type: Gamma Ray Spectry. in Astrophys.; p 516-528
    Format: text
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    NASA TECHNICAL REPORTS
  • 5
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    Observations of medium-energy gamma-ray emission from the galactic center region (1978)
    In:  Other Sources
    Details
    Publication Date: 2011-08-17
    Description: Measurements of the gamma-ray emission in the medium-energy range between 15 and 100 MeV, obtained during two balloon flights from Brazil, are presented. The importance of this energy region in determining whether neutral-pion decay or electron bremsstrahlung is the most likely dominant source mechanism is discussed, along with the implications of such observations. Specifically, the data from this experiment suggest that emission from the galactic plane is similar to the theoretical spectrum calculated by Fichtel et al. (1976), including both source mechanisms but with the bremsstrahlung component enhanced by a factor of about 2. A spectral distribution of gamma-rays produced in the residual atmosphere above the instrument is also presented and compared with other data. A rather smooth spectral variation from high to low energies is found for the atmospheric spectrum.
    Keywords: SPACE RADIATION
    Type: Astrophysical Journal; vol. 225
    Format: text
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    NASA TECHNICAL REPORTS
  • 6
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    Observations of medium energy gamma ray emission from the galactic center region (1978)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: Measurements of the gamma-ray emission in the medium energy range between 15 and 100 MeV, obtained during two ballon flights from Brazil are presented. The importance of this energy region in determining whether pi deg - decay of electron bremsstrahlung is the most likely dominant source mechanism is discussed along with the implications of such observations. Specifically, the data from this experiment suggest that emission from the galactic plane is similar to theoretical spectrum calculations including both sources mechanisms, but with the bremsstrahlung component enhanced by a factor of about 2. A spectral distribution of gamma-rays produced in the residual atmosphere above the instrument is also presented and compared with other data. A rather smooth spectral variation from high to low energies is found for the atmospheric spectrum.
    Keywords: SPACE RADIATION
    Type: NASA-TM-79543
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 7
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    Energy spectrum of medium energy gamma-rays from the galactic center region (1978)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: A balloon-borne magnetic core digitized spark chamber with two assemblies of spark-chambers above and below the scintillation counters was used to measure the medium energy gamma ray flux from the galactic center region. Gamma ray calculations are based on the multiple scattering of the pair electrons in 15 aluminum plates interleaved in the spark chamber modules. Counting rates determined during ascent and at ceiling indicate the presence of diffuse component in this energy range. Preliminary results give an integral flux between 15 and 70 MeV compared to the differential points in other results.
    Keywords: SPACE RADIATION
    Type: NASA-TM-78331 , INPE-1218-PE/122
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 8
    Electronic Resource
    Electronic Resource
    Sample size in gas chromatography (1978)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 1 (1978), S. 306-307 
    Details
    ISSN: 0935-6304
    Keywords: Gas Chromatography ; calculation of sample size ; simplest formula ; any type of GC column used ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240010608
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    Paper (German National Licenses)
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  • 9
    Electronic Resource
    Electronic Resource
    Degradation of diluted solutions of silicone stationary phases during storage (1979)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 2 (1979), S. 69-70 
    Details
    ISSN: 0935-6304
    Keywords: Gas Chromatography ; Stationary phases, chemical stability in solutions ; SE 30, SE 54 in chloroform or toluene show rapid depolymerization (HCL-, Tetramethylammoniu hydroxide-traces responsible) ; Solutions with decreased molecular weight of silicon phase give decreased film thickness (Hg plug technique) and increased tailing in glass capillary impregnation ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240020204
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    Paper (German National Licenses)
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  • 10
    Electronic Resource
    Electronic Resource
    Stationary phases for gas chromatography; chemical stability of polysiloxanes (1979)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 2 (1979), S. 405-410 
    Details
    ISSN: 0935-6304
    Keywords: Gas chromatography ; Capillary, glass ; Stationary phases of polysiloxane-type degrade in acidic solution ; Several salt traces affect stability at high temperature NaCl on Duran-5O: no effect at 260°C ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: A number of polysiloxanes have been shown to be sensitive to acids when dissolved in chloroform.At 26O°C polysiloxanes were found to degrade under the influence of several compounds used or produced during the preparation of glass capillary columns.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240020707
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    Paper (German National Licenses)
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