SLVAE32B August 2018 – December 2023 TPS7H2201-SP
Event rates were calculated for LEO (ISS) and GEO environments by combining CREME96 orbital integral flux estimations and simplified SEE cross-sections according to methods shown in Section 10. A minimum shielding configuration of 100 mils (2.54 mm) of aluminum, and worst-week solar activity (this is similar to a 99% upper bound for the environment) was assumed. Using the 95% upper-bounds for the SEL, SEB/SEGR, and SET, the event-rates of the TPS7H2201-SP are listed in Table 11-2, Table 11-3, and Table 11-4, respectively. As previously mentioned, no SEL, SEB, or SEGR events were observed under any of the test runs, indicating that the TPS7H2001-SP is SEL, SEB, and SEGR immune. Cross-sections and event rates shown in Table 11-2 and Table 11-3, are calculated based on 0 events observed using a 95% (2σ) confidence interval.
| Orbit Type | Onset LET (MeV × cm² / mg) | CREME96 Integral Flux ( / day × cm²) | σ SAT (cm²) | Event Rate ( / day) | Event Rate (FIT) | MTBE (Years) |
|---|---|---|---|---|---|---|
| LEO (ISS) | 75.0 | 6.61 × 10-5 | 1.84 × 10-7 | 1.22 × 10-11 | 5.07 × 10-4 | 2.25 × 108 |
| GEO | 1.87 × 10-4 | 3.44 × 10-11 | 1.43 × 10-3 | 7.97 × 107 |
| Orbit Type | Onset LET (MeV × cm² / mg) | CREME96 Integral Flux ( / day × cm²) | σ SAT (cm²) | Event Rate ( / day) | Event Rate (FIT) | MTBE (Years) |
|---|---|---|---|---|---|---|
| LEO (ISS) | 75 | 6.61 × 10-5 | 4.61 × 10-8 | 3.05 × 10-12 | 1.27 × 10-4 | 8.99 × 108 |
| GEO | 1.87 × 10-4 | 8.61 × 10-12 | 3.59 × 10-4 | 3.18 × 108 |
| Orbit Type | Onset LET (MeV × cm² / mg) | CREME96 Integral Flux ( / day × cm²) | σ SAT (cm²) | Event Rate ( / day) | Event Rate (FIT) | MTBE (Years) |
|---|---|---|---|---|---|---|
| LEO (ISS) | 75 | 6.61 × 10-5 | 2.29 × 10-8 | 1.51 × 10-12 | 6.31 × 10-5 | 1.81 × 109 |
| GEO | 1.87 × 10-4 | 4.28 × 10-12 | 1.78 × 10-5 | 6.4 × 108 |