Table 2. Simulated beam intensities for ‘zero’ loss, single plasmon and double plasmon energy-filtered diffraction patterns (50 000 iterations).
The ‘zero’ loss simulation contains phonon events but no plasmons. Also shown are the results for a fully elastic calculation (i.e. no inelastic events). The total intensity for the diffraction pattern at a given energy loss is normalized to unity. The intensity ratios for a given Bragg beam are calculated with respect to the unscattered 000 beam.
| 000 intensity |
intensity |
002 intensity |
intensity |
|
|---|---|---|---|---|
| ‘Zero’ loss | 0.48 | 0.07 | <0.01 | 0.04 |
| Single plasmon | 0.30 | 0.09 | 0.03 | 0.05 |
| Double plasmon | 0.21 | 0.08 | 0.04 | 0.05 |
| Fully elastic | 0.46 | 0.09 | <0.01 | 0.04 |
ratio |
002/000 ratio |
ratio |
||
| ‘Zero’ loss | 0.16 | <0.01 | 0.08 | |
| Single plasmon | 0.29 | 0.09 | 0.16 | |
| Double plasmon | 0.38 | 0.18 | 0.24 | |
| Fully elastic | 0.19 | <0.01 | 0.09 |