SLVK173 July 2024 TPS7H4011-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 described in Heavy Ion Orbital Environment Single-Event Effects Estimations. Assume a minimum shielding configuration of 100mils (2.54mm) of aluminum, and worst-week solar activity (this is similar to a 99% upper bound for the environment). Using the 95% upper-bounds for SEL, SEB/SEGR, and SET the event rate calculations for SEL, SEB/SEGR, and SET are shown on Table 9-1,Table 9-2, and Table 9-2, respectively. Note that this number is for reference since no SEL, SEB/SEGR, or SET events were observed.
Orbit Type | Onset LETEFF (MeV-cm2/mg) | CREME96 Integral FLUX (/day/cm2) | σSAT (cm2) | Event Rate (/day) | Event Rate (FIT) | MTBE (Years) |
---|---|---|---|---|---|---|
LEO (ISS) | 75 | 6.26 × 10–5 | 9.22 × 10-8 | 5.77 × 10–12 | 2.41 × 10–4 | 4.75 × 108 |
GEO | 1.77 × 10–4 | 1.63 × 10–11 | 6.79 × 10–4 | 1.68 × 108 |
Orbit Type | Onset LETEFF (MeV-cm2/mg) | CREME96 Integral FLUX (/day/cm2) | σSAT (cm2) | Event Rate (/day) | Event Rate (FIT) | MTBE (Years) |
---|---|---|---|---|---|---|
LEO (ISS) | 75 | 6.26 × 10–5 | 4.61 × 10-8 | 2.89 × 10–12 | 1.20 × 10–4 | 9.49 × 108 |
GEO | 1.77 × 10–4 | 8.15 × 10–12 | 3.40 × 10–4 | 3.36 × 108 |
Orbit Type | Onset LETEFF (MeV-cm2/mg) | CREME96 Integral FLUX (/day/cm2) | σSAT (cm2) | Event Rate (/day) | Event Rate (FIT) | MTBE (Years) |
---|---|---|---|---|---|---|
LEO (ISS) | 75 | 6.26 × 10-5 | 4.61 × 10–8 | 2.89 × 10–12 | 1.20 × 10-4 | 9.49 × 108 |
GEO | 1.77 × 10-4 | 8.15 × 10–12 | 3.40 × 10-4 | 3.36 × 108 |