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Cross section angular-differential scattering

In ion-solid interactions, it is customary to describe the number of particles scattered through different angles, 6C, in terms of a quantity called the angular differential scattering cross-section. Imagine the experiment depicted in Fig. 4.1, where a beam of ions is incident on a thin foil and is scattered into a detector of area A a at a polar angle between 8C and 6C + d0C. Each of the ions in the incident... [Pg.37]

Angular light scattering measurements are sometimes classified as either absolute or relative. In an absolute measurement 7s//(, which is directly related to the differential scattering cross section (13.2), is determined in a relative measurement the irradiance is referred to some arbitrary scattering angle, say 10°, so that (assuming azimuthal symmetry)... [Pg.391]

Equations (4.5) and (4.7) give the differential scattering cross-section in the center-of-mass. The equivalent expressions in the laboratory reference frame can be obtained for the scattered projectile and scattered target nucleus by using the angular relationships presented in Table 3.2. [Pg.41]

We define the differential scattering cross-section per unit volume of the scatterer, per unit solid angle ( 2), per unit angular frequency change as... [Pg.168]

In simplifying the derivation of the paramagnetic differential scattering cross section it is common to assume LS coupling [3, 48]. This assumption states that for individual electrons of spin s and orbital angular momentum 1 ... [Pg.36]

Another important scattering characteristic is the angular distribution of the scattered field. For an ensemble of randomly oriented particles illuminated by a vector plane wave of unit amplitude and polarization vector Cpoi = epoi,/3e/3 + epoi,a6a, the differential scattering cross-sections in the scattering plane are given by... [Pg.81]

The concept of supermolecules allows a rather rigorous treatment of the aspects of collision-induced light scattering in the binary regime. The frequency dependence of the scattered light is described by the differential photon scattering cross section per unit angular frequency and per pair,... [Pg.367]

Figure 1.6 Angular distribution of the scaled differential cross-section (l/r Kdo 1 VdJ ) of the first harmonic n — 1. Vanishing initial velocity fo = 0 is assumed and tq = 2.82 x 10 13 cm denotes the classical electron radius. The dotted line corresponds to the ordinary Thomson scattering cross-section. Figure 1.6 Angular distribution of the scaled differential cross-section (l/r Kdo 1 VdJ ) of the first harmonic n — 1. Vanishing initial velocity fo = 0 is assumed and tq = 2.82 x 10 13 cm denotes the classical electron radius. The dotted line corresponds to the ordinary Thomson scattering cross-section.

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See also in sourсe #XX -- [ Pg.37 ]

See also in sourсe #XX -- [ Pg.37 ]




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