The field equations of a noncovariant theory of gravitation, based on the existence of a preferred frame of reference in the universe, are applied to the homogeneous isotropic cosmological model. One is naturally led to a particular value of the previously undetermined constant present in the equations. The second-order equation determining the radius of the universe can be integrated to give a first-order equation similar to that of general relativity, but with an additional term that can lead to oscillations without any singular state. One obtains a conservation law for the total energy, which is found to be positive definite.

The reflection of light ions from heavy random targets has been calculated within the single-collision approximation on the basis of essentially the same physical model as Schiott's adaptation of the LSS range theory to light ions. An accurate effectivepower approximation has been utilized to evaluate a number of physical quantities relating to reflected ions under the assumption of Thomas-Fermi scattering. Analytical results as well as universal curves are presented for reflected-energy spectra integrated over ejection angle, particle and energy reflection coefficients, and quantities derived from these. Good agreement with experimental results is obtained for e≳, where e is Lindhard's energy parameter. The results are compared with those from previous calculations on the basis of transport theory and computer simulation. An estimate is given of the single-collision tail of the light-ion range profile. Qualitative corrections for beam attenuation and recoil energy loss are presented in appendices.

Gravitation Theory and Oscillating Universe

Total backscattering of keV light ions from solid targets in single-collision approximation

We review critically the field of Auger electron emission from slow ion impact on surfaces (Auger neutralization and deexcitation), and Auger emission from the decay of inner-shell holes created by impact with energetic ions We show how the inspection of the basic formalism of transition rates for Auger neutralization, reveals the basic physical mechanisms involved, and provides the foundation for the method of Ion Neutralization Spectroscopy (INS) created by Hagstrum and co-workers We describe the necessary experimental techniques, and show some of the most prominent applications of INS We then present background information from electron-excited Auger Electron Spectroscopy (AES), we review the basic physics of inner-shell excitation by energetic light-ions (Born approximation and leading corrections to it), the case of inner-shell electron promotion in heavy ion collisions, and specific solid state effects Finally, we discuss experimental aspects and specific examples of ion-induced Auger s

Gravitation Theory and Oscillating Universe

Citations

Total backscattering of keV light ions from solid targets in single-collision approximation

Principles and applications of ion-induced auger electron emission from solids

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