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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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Neutron production cross sections prediction at proton bombarding energies below 50 Mev and above threshold for multiple nucleon emission
High energy neutron transport calculated using one dimensional discrete ordinates code with anisotropic scattering, comparing results with nucleon transport code calculations
Spin down effects on neutron stars, discussing decrease of period of PSR 0833-45 as result of differential rotation instability
Fast neutron irradiation effect on niobium nitride current carrying capacity, showing enhancement
Solar neutrons upper limits measured for 28 July 1967 importance 1 flares
Monte Carlo method application to neutron streaming in hemispherical air-filled ducts in water tank to determine leakage through nuclear reactor shields
Group cross section generating techniques to calculate neutron capture rates and spatial capture distribution in depleted thick U slab, using GAROL program
Photoresponse and minority carrier diffusion length long term stability of Li doped solar cells after proton, neutron and electron irradiation
Radial pulsations of neutron star losing mass, interpreting Crab Nebula pulsar observed period and secular increase of period
Fast neutron irradiation effect in Ge crystals, using X ray diffraction and volumetric measurements
Thermal neutron flux perturbations in cylinders in test reactors, using regression analysis to obtain polynomials for flux perturbation, depression, self shielding factors, etc
Nondestructive detection of titanium hydride formation in threaded joints of Ti alloy pressurization tanks by neutron radiography
Neutron activation analysis is used for quantitative identification of trace metals in copper. Establishing a unique fingerprint of impurities in Michigan copper would enable identification of artifacts made from this copper.
Electronic intensifier tube with a demagnification ratio of 9-1 enhances the usefulness of neutron-radiographic techniques. A television signal can be obtained by optical coupling of a small-output phosphor-light image to a television camera.
Computer program reduces time manually required to compute neutron age and to provide definite plan of procedural choices. Program allows convenient comparison of several fitting and error analysis procedures. Program code provides for error estimation of various integration options.
Neutron spectra for various thicknesses of liquid hydrogen
Secondary emission of protons and neutrons from target materials after proton beam impact
Neutron activation and gamma-ray analysis on stony meteorites for composition and age determination