Table 3.
Comparison of execution times using a single 2.2 GHz CPU for different simulation runs. The reduce gamma flood and FLS simulation times are all on the order of minutes, even with the inclusion of full optical transport.
| Geometry | Reference | Simulation method | Incident gammas per flood | Number of flood images | Total incident gammas | Total CPU min |
|---|---|---|---|---|---|---|
| Pixelated scintillator | Wang et al. (Ref. 19) | Synthesized slit (NPS only) | 3.4 × 108 | 50 | 1.7 × 1010 | 177 000 (estimated) |
| Pixelated scintillator | Current work | IEC (NPS only) | 3.4 × 108 | 50 | 1.7 × 1010 | 2 650 000 |
| Pixelated scintillator | Current work | IEC (NPS only) | 80 | 500 | 4 × 104 | 8.3 |
| Pixelated scintillator | Current work | FLS (MTF, NPS, DQE) | … | … | 2 × 104 | 3.1 |
| AS1000 EPID with optical transport | Current work | FLS (MTF, NPS, DQE) | … | … | 4 × 105 | 14.5 |