Calculation of the total Rayleigh scattering cross sections of photons in the energy range of 30–50keV for Nb and Mo elements

Koherent saçılma üzerine moleküler girişimin etkisi

“…The findings suggesting the superiority of the RMFF theory have been reported earlier [16,19,[21][22][23][24][25][26][27][28][29][30][31][32][33][34][35]. It has been established both from comparison of theoretical results and from experiments that the RMFF, in general, produces better results than other choices of the FF [34].…”

“…In the numerical integration, the integration variable was taken as 1-cosθ, from which the values of x=sin(θ/2)/λ(Å)=[(1-cosθ)/2] 1/2 /λ(Å) could be computed close to θ=0. The integration range used, was from 1-cos = 10 -16 to 2.0 ( =0.0000008538 to 180 ), divided into intervals in the logarithm of 1-cos by using a modified formula [16]. However, in the studies of Hubbell et al [17] and Hubbell and Øverbø [18], the integration range was taken from 1-cos =10 -12 to 2.0 ( =0.000081 to 180 ).…”

“…The FF approximation is often used to predict the Rayleigh scattering amplitudes. A detailed explanation on the FF approximations is given by Böke [16].…”

Coherent X-ray scattering data for plastics

“…The experimental form factors are in better accommodation with the modified relativistic form factor (MFF) approximation [7]. The MFF approach is better than other approaches, as indicated by some researchers [7,[8][9][10][11][12][13][14][15][16][17].…”

Relativistic polarization analysis of Rayleigh scattering by atomic hydrogen

“…In atomic physics, especially, the polarization properties of light have been studied for various processes, such as atomic and ionic photoionization [1], hyperfine-quenched transitions [2], two-photon decay [3,4], atomic-field bremsstrahlung [5], radiative electron capture [6], and elastic scattering of light. Elastic scattering of light by atoms and ions [7,8] (so-called Rayleigh scattering) has applications in astronomy, shielding, medical diagnostics, and also is used extensively to obtain information about the structural properties of materials and complex molecules [9][10][11][12][13][14].…”