Table 3. Simulated intensities for normal incidence and precession angles of θE, 5θE and 10θE, where θE is the plasmon characteristic scattering angle (0.04 mrad).
The precession calculations included 500 uniformly spaced incident wavevectors along the precession cone. The intensity ratios for a given Bragg beam are calculated with respect to the unscattered 000 beam. The results do not include any inelastic scattering. In each case the total intensity of the diffraction pattern was normalized to unity.
| 000 intensity |
intensity |
002 intensity |
intensity |
|
|---|---|---|---|---|
| Normal incidence | 0.46 | 0.09 | <0.01 | 0.04 |
| Precession (θE) | 0.46 | 0.09 | <0.01 | 0.04 |
| Precession (5θE) | 0.45 | 0.09 | <0.01 | 0.04 |
| Precession (10θE) | 0.44 | 0.08 | <0.01 | 0.05 |
ratio |
002/000 ratio |
ratio |
||
| Normal incidence | 0.19 | <0.01 | 0.09 | |
| Precession (θE) | 0.19 | <0.01 | 0.09 | |
| Precession (5θE) | 0.19 | <0.01 | 0.10 | |
| Precession (10θE) | 0.20 | 0.01 | 0.11 |