LAT Specifications & Performance
| Quantity | LAT (Minimim Spec.) | EGRET |
|---|---|---|
| Energy Range | 20 MeV - 300 GeV | 20 MeV - 30 GeV |
| Peak Effective Area1 | > 8000 cm2 | 1500 cm2 |
| Field of View | > 2 sr | 0.5 sr |
| Angular Resolution2 |
< 3.5° (100 MeV) < 0.15° (>10 GeV) |
5.8° (100 MeV) |
| Energy Resolution3 | < 10% | 10% |
| Deadtime per Event | < 100 μs | 100 ms |
| Source Location Determination4 | < 0.5' | 15' |
| Point Source Sensitivity5 | < 6 x 10-9 cm-2 s-1 | ~ 10-7 cm-2 s-1 |
1 After background rejection
2 Single photon, 68% containment, on-axis
3 1-σ, on-axis
4 1-σ radius, flux 10-7 cm-2 s-1 (>100 MeV), high |b|
5> 100 MeV, at high |b|, for exposure of one-year all sky survey, photon spectral index -2