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  • 1
    Electronic Resource
    Electronic Resource
    Charge composition of cosmic rays between 4 and 100 GV (1974)
    [s.l.] : Nature Publishing Group
    Nature 249 (1974), S. 814-816 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Fig. 1 Schematic representation of the detector system indicating the location of the five spectrometer plates and the target emulsion stack. Table 1 Number of nuclei as a function of charge group and rigidity Rigidity interval (GV) Charge group 4-7 Fig. 2 Rigidity spectrum. The histogram ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/249814a0
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  • 2
    Electronic Resource
    Electronic Resource
    Cosmic-ray electrons and galactic radio emission—a conflict? (1977)
    [s.l.] : Nature Publishing Group
    Nature 265 (1977), S. 424-426 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] We will refer first to the spectral shape of the cosmic-ray electrons expected from radio observations. It is found from the latest compilation of the radio intensity, I(v), by A. S. Webster (personal communication) between 10 and 8,000 MHz in the direction of the anticentre, that the spectrum ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/265424a0
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  • 3
    Electronic Resource
    Electronic Resource
    Relative abundance of antiprotons and antihelium in the primary cosmic radiation (1978)
    [s.l.] : Nature Publishing Group
    Nature 274 (1978), S. 137-139 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] We have previously reported on the p/p in the 4.2-12.5 GeV/c range from an earlier (September 1975) balloon flight3. The present instrument, shown in Fig. 1, differs from the previous experiment in one important respect. In the present flight there were three additional position measuring multiwire ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/274137b0
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  • 4
    Electronic Resource
    Electronic Resource
    Solar modulation and nuclear fragmentation effects in galactic cosmic ray transport through shielding
    Amsterdam : Elsevier
    Advances in Space Research 14 (1994), S. 853-861 
    Details
    ISSN: 0273-1177
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1016/0273-1177(94)90550-9
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  • 5
    Electronic Resource
    Electronic Resource
    γ-ray observations from the OSO-3 satellite (1974)
    Springer
    Astrophysics and space science 27 (1974), S. 147-155 
    Details
    ISSN: 1572-946X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The result on λ-rays obtained from the analysis of 5800 orbits of data from the University of Rochester telescope on board the OSO-3 satellite are presented. For γ-rays of energy greater than 100 MeV, an upper limit of 2.3×10−4 cm−2 s−1 std has been placed on the diffuse (assumed isotropic) flux. An upper limit to the flux from the Sun is set at 3.2×10−5 and 2.4×10−5 cm−2 s−1 for energies greater than 50 MeV and 100 MeV, respectively. All flux values are calculated assuming a π0-decay source of γ-rays.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00641594
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  • 6
    Electronic Resource
    Electronic Resource
    Cosmic ray antiproton and positron production in the interstellar medium (1975)
    Springer
    Astrophysics and space science 37 (1975), S. 283-300 
    Details
    ISSN: 1572-946X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We have calculated the energy spectra of cosmic ray secondary antiprotons and positrons using the latest available data on inclusive reactions. Using the measured positron spectrum, we have found that the amount of matter traversed by the cosmic rays in the few GeV region to bem≈4.7±1.5 g cm−2 of interstellar hydrogen. The computed antiproton to proton ratio is about 4×10−4 for energies 5–10 GeV. This is sufficient to make observations of antiprotons feasible from balloon flights. We have also pointed out the type of information that can be obtained if accurate information of the spectra of these two components becomes available.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00640354
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  • 7
    Electronic Resource
    Electronic Resource
    Production spectrum of gamma rays in interstellar space through neutral pion decay (1981)
    Springer
    Astrophysics and space science 76 (1981), S. 213-233 
    Details
    ISSN: 1572-946X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We have obtained a simple representation to the observed invariant cross-section for the production of neutral pions in proton-proton collisions. Making use of this representation, we have calculated the differential and integral production spectra of gamma rays in the Galaxy from interactions of cosmic ray nuclei with interstellar gas. It is shown that the uncertainties in deducing interstellar proton spectrum by demodulating the observed spectrum do not affect very much the gamma ray spectrum. We have also determined the gamma ray production spectrum through bremsstrahlung process for a typical interstellar electron spectrum derived from the radio spectrum in the Galaxy. From these, the total gamma ray production spectrum resulting from the interaction of cosmic rays with interstellar matter is compared with the observed gamma ray spectrum in the Galaxy and some inferences have been obtained. We also point out the possible uncertainty in the present calculation and suggest the improvements needed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00651256
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  • 8
    Electronic Resource
    Electronic Resource
    Radio-emitting electrons and cosmic ray confinement (1977)
    Springer
    Astrophysics and space science 49 (1977), S. 133-143 
    Details
    ISSN: 1572-946X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The propagation of cosmic ray electrons in the framework of the Disk-Halo diffusion model in which the diffusion coefficientD ∝z ∝ E μ (wherez is the distance from the galactic plane andE is the energy), and the magnetic fieldHαz −ξ has been examined by making use of the recently available radio data up to 8 GHz toward the Anticenter (A) and Halo Minimum (M). The following inferences are then made. From the difference in the frequency at which steepening occurs in the radio spectra towardA andH, it is found that the observations are consistent with the magnetic field decreasing withz such that ξ=0.24–0.37. An electron injection spectrum with a single power law down to energies well below 1 GeV cannot explain satisfactorily the observed radio spectra. All observations, however, can be understood in a self consistent way if the observed steepening of the radio spectra, and hence the interstellar electron spectrum, is due partly to the deviation in the power law electron injection spectrum below a few GeV and partly to the first break arising from electron energy losses occurring in the same energy region. In this case, using the value of ξ obtained above and a value of μ=0.3–0.6, it is found that the spectral index γ0 of the injected electrons above a few GeV has a value between 1.9 and 2.3 and the index δ a value between 0.5 and 1. Further, if the electrons and protons have the same spectral shape at injection, then γ0=2.1–2.3.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00647081
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  • 9
    Electronic Resource
    Electronic Resource
    Characteristics of a pressed silica powder Cherenkov detector
    Amsterdam : Elsevier
    Nuclear Instruments and Methods in Physics Research Section A: 226 (1984), S. 361-368 
    Details
    ISSN: 0168-9002
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0168-9002(84)90050-0
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  • 10
    Electronic Resource
    Electronic Resource
    Relative abundances of positrons and antiprotons in the primary cosmic ray flux (1974)
    [s.l.] : Nature Publishing Group
    Nature 251 (1974), S. 126-126 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Our calculations on the expected antiprotons-positron ratio differ in one significant respect from those of Shen and Berkey1: we have detailed measurements of the cross section of antiproton production up to intersecting storage ring energies. That permitted us to calculate the e+/p ratio quite ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/251126a0
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