Angular dependence of the scattering

For molecules having dimensions comparable with the wavelength, phase differences will occur between waves scattered from different regions of the molecule. These phase differences result in an angular dependence of the scattered intensity. The reduction may be expressed in temis of a particle interference factor P(2Q) such that... 

Small-angle X-ray diffraction was performed on three selected fractions (Mw = 13000 45800 91500) within concentrations of 0.5 and 4%. Rigid rodlike geometry of the molecules is indicated in the angular dependence of the scattering intensities. 

Angular dependence of the scattering intensity, particle sizing u3ing PCS, 81,83f,84... 

Fig. 8a-d. Generation of Synchrotron radiation by a circling electron or positron, a) Classical radiation emission by a particle accelerated in direction v b) corresponding radiation emission by a circling particle in the nonrelativistic case c) radiation emission by a circling particle in the relativistic case d) out of plane angular dependence of the scattering intensity in case c)... 

Kerker, M. et ah. Determination of particle size by the minima and maxima in the angular dependence of the scattered light. Range of validity of the method, J. Colloid Set, 19, 193-200, 1964. Mandelbrot, B., The Fractal Geometry of Nature, Freeman, San Franciso, CA, 1983. 

FIG. 20 Angular dependence of the scattering amplitude of the slow diffusive mode As (above) and slow diffusion coefficient Ds (below). Sodium poly(styrene sulfonate) (NaPSS) in water, no added salt, = 710,000, polyion concentration c = 10 g/L. As is expressed in arbitrary units. 

The angular dependence of the scattering of 129-keV y-rays has been used to determine the E2/M1 mixing ratio as... 

Chen et analysed data for He(2 S ) + Ar on the basis of the orbiting model, with transitions restricted to the turning-point, Rc in V. From the angular dependence of the scattered He atoms, the range of impact parameters and thus of values of Rc contributing to ionization was determined and thus the value of Ra from the value of determined over the range R = 2.9 to 3.4 A. 

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