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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Composition of solar cosmic rays.
Solar cosmic ray particle composition, charge and energy spectra of nuclear components and isotopic composition of H and He
Anisotropies of solar cosmic rays.
Solar cosmic ray anisotropies in terms of model with particles propagating along interplanetary magnetic field undergoing pitch-angle scattering
Satellite observations of solar cosmic rays
Solar cosmic rays satellite observation, considering flare associated, recurrent and storm particle events and active center associated energetic particles
Solar cosmic rays
Solar cosmic ray data, discussing multicharged nuclei relative abundances in photosphere and propagation models
Solar cosmic ray, solar wind, solar flare, and neutron albedo measurements, part C
All mineral detectors exposed on Apollo 16 had high surface track densities probably produced by a solar flare that occurred during the mission. The heavy ions followed a power law spectrum with exponent approximately 3 down to approximately 200 KeV/nucleon. The abundance of low-energy particle tracks observed in this flare may explain the high track densities observed in lunar dust grains. Pristine heavy-particle tracks in feldspar give long tracks. Shallow pits similar to those expected from extremely heavy solar wind ions were observed in about the expected number. Initial results give a low apparent value of neutron albedo relative to theory.
Effect of energy changes on solar cosmic rays.
Solar wind convection and energy changes effects on solar cosmic rays, solving time dependent spherically symmetric Fokker-Planck equation
Observations of energetic X-rays and solar cosmic rays associated with the 23 May 1967 solar flare event.
Peaks and time intensity profile of energetic X rays and cosmic rays observed by OGO-C ion chamber on May 23, 1967 flare event
Solar cosmic ray phenomena
Solar cosmic ray phenomena, noting ionospheric effects and physical processes near sun
Solar cosmic ray propagation characteristics.
Solar cosmic ray propagation and adequacy of current models to explain modes of propagation
COMPOSITION OF SOLAR COSMIC RAYS
Composition of solar cosmic rays - radiation hazard
Review of galactic and solar cosmic rays
Galactic and solar cosmic rays - space radiation
Recurrent solar cosmic ray events and solar M regions
Recurrent solar cosmic ray events and M region magnetic storms
Propagation of solar cosmic rays in the solar wind.
The theory of the propagation of solar cosmic rays in the solar wind is reviewed, with particular emphasis on the diffusive transport during the decay phase of events. Recent evidence is shown to corroborate the prediction that the diffusion coefficient is small for protons with energies of the order of 1 Mev. It is concluded that the transport equation explains the principal phenomena quite well, in that most effects are reasonably understood.
Solar cosmic ray bursts and solar neutrino fluxes
The neutrino flux detected in the C1-Ar experiment seems to respond to the powerful solar cosmic ray bursts. The ground-based detectors, the balloons and the satellites detect about 50% of the bursts of soalr cosmic ray generated on the Sun's visible side. As a rule, such bursts originate from the Western side of the visible solar disk. Since the solar cosmic ray bursts are in opposite phase withthe 11-year galactic cosmic ray cycle which also seems to be reflected by neutrino experiment. The neutrino generation in the bursts will flatten the possible 11-year behavior of the AR-37 production rate, Q, in the Cl-Ar experiment. The detection of solar-flare-generated gamma-quanta with energies above tens of Mev is indicative of the generation of high-energy particles which in turn may produce neutrinos. Thus, the increased Q during the runs, when the flare-generated high energy gamma-quanta have been registered, may be regarded as additional evidence for neutrino geneation in the solar flare processes.
A summary of solar cosmic ray events
Characteristics of solar cosmic ray events and correlation with solar flare data