Results 231 to 240 of about 258,403 (267)

Scattering length and effective range for scattering in a plane and in higher dimensions

Physics Letters A, 1985
It is shown how the concepts of scattering length and effective range, previously introduced for low-energy scattering from a potential V(r) in a plane, correspond to the well-known parameters in three dimensions. This is done by considering low-energy scattering in a general dimension n>=2 and subsequently showing that both the n=2 and n=3 cases ...
Verhaar, B.J., Goey, de, L.P.H., Vredenbregt, E.J.D., van den Eijnde, J.P.H.W.   +3 more
openaire   +4 more sources

Fluorescence depolarization in a scattering medium: Effect of size parameter of a scatterer

Physical Review E, 2002
For a monodisperse scattering medium, we investigate the dependence on scatterer size parameter for the change in anisotropy of fluorescence due to single scattering at excitation or emission wavelength. The value for the ratio of the anisotropy of fluorescence after one scattering at excitation or emission wavelength to the initial value was observed ...
N, Ghosh, S K, Majumder, P K, Gupta
openaire   +2 more sources

Two-photon scattering effect of a single Mie scatterer

Journal of the Optical Society of America B, 2021
We perform a theoretical study on the two-photon scattering effect of a single Mie scatterer, and investigate its dependence on the rotation angle of the scatterer, and the wavelength and polarization of incident light. Different regions of the two-photon correlation map are recognized by investigating two parameters, i.e., the visibility of two-photon
openaire   +1 more source

The Effect of Elastic Scattering Cross Section to Multiple-Scattering of Electrons

AIP Conference Proceedings, 2007
A Monte Carlo code is developed which simulates the interactions and transport of electron within a given medium. The angular distributions of the electrons transmitted through a medium of definite thickness are obtained by using this code. In order to investigate the contribution of elastic scattering to multiple‐scattering, the angular distrubutions ...
CENGİZ, AHMET, Aytekin, Hueseyin, Koray, Abdullah   +2 more
openaire   +2 more sources

COMPTON SCATTER EFFECTS IN CT RECONSTRUCTIONS

Journal of Computer Assisted Tomography, 1982
Compton scatter of x‐ray quanta is the dominant attenuation mechanism in medical diagnostic imaging. In this paper, it is shown that the scatter‐to‐primary ratio determines the nature and intensity of scatter artifacts in computed tomography (CT) reconstructions and that this ratio, while significantly lower than in radiographic and fluoroscopic ...
openaire   +2 more sources

Dispersive effects in pion-nucleus scattering

Physical Review C, 1985
The influence of dispersive, medium effects on pion-nucleus elastic scattering is investigated in a simple model. The pion-nucleus interaction in the impulse approximation is represented by an optical potential whose form is motivated by field-theoretic considerations and the properties of the ${\ensuremath{\Delta}}_{33}$ resonance. The intermediate ${\
, Ernst, , Johnson
openaire   +2 more sources

Anisotropic effects in highly scattering media

Physical Review E, 2003
In this paper, we study anisotropic scattering and light propagation models applicable to diffuse optical tomography. We propose a model for anisotropic scattering in the radiative transfer framework and derive the corresponding anisotropic diffusion model.
Jenni, Heino, Simon, Arridge, Jan, Sikora, Erkki, Somersalo   +3 more
openaire   +2 more sources

Multiple scattering and dynamical effects in diffuse electron scattering

Acta Crystallographica Section A, 1973
A many-beam dynamical theory for Bragg scattering effects in diffuse electron scattering is developed which takes multiple diffuse scattering into account. For non-absorbing crystals the theory is shown to include previous theories for Kikuchi lines and bands; with absorption, a weaker dependence on the anomalous absorption parameters than in previous ...
openaire   +1 more source

Effects of phase-cancellation on scattering measurements

Ultrasonic Imaging, 1981
Piezoelectric transducers are sensitive to the phase of the incident pressure. When measuring the transmission properties of inhomogeneous materials which distort the shape of the wave front, a substantive error results if a phase-sensitive transducer is used as a receiver due to the phase-cancellation effect. This artifact has been found also to exist
openaire   +1 more source

Scattering Effects

2023
openaire   +1 more source