Azimuthal angle scan

Azimuthal Angle Scan Using Shadow Cone... 

Figure 3.3.21 Experimental (solid circles) and simulated (solid lines) azimuthal angle scans obtained from clean Pd(OOl) surface and (2x2)p4g surface are compared. Best match between experiment and simulation is for a surface with a lateral atom offset of 0.5 A [36].

Figure Bl.23.8. Scattering intensity of 2 keV Ne versus azimuthal angle 6 scans for Pt 110] in the (1 x 2) and (1 X 3) reconstructed phases. Scattering angle 0 = 28° and incident angle a = 6°.

Fig. 3.62. Examples ofTOF-SARS spectra for Kr scattering from CdS -time-of-flight spectrum, scans for the angle of incidence a, and the azimuthal angle S [3.149].

Cu Ka, radiation = 1.54960 A) was used. A pinhole collimator with a 0.5 mm opening was used to define the sampling volume, and seller slits were and to minimize sample displacement errors. The (1 4 6) AI2O3 reflection at -136° 26 was step-scanned using three azimuthal angles ((j) = 9, 45, and 99°) and seven tilt angles, ( / = 0, +28.2, 42, and 55 °)... 

A point on the azimuthal scan may be represented by a unit vector, n, such that u, = cosfi and = sinjS (fi is the azimuthal angle). A weighted average of the second moment tensor of n provides a simple representation of anisotropy in the scattering pattern ... 

---