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Table 2
Charge 4 VC: main parameters for the combination of apodizers and Lyot stops that give the highest system through puts for the five aperture diameters COA and the three spider thicknesses tS.
| C O A | t S | C O LS | T A | T LS | T LP | T max | IWA | Contrast |
|
|
||||||||
| 10 | 0 | 38 | 88 | 79 | 61 | 56 | 1.8 | 2 × 10-10 |
| 15 | 0 | 44 | 85 | 74 | 54 | 48 | 2.3 | 2 × 10-10 |
| 20 | 0 | 50 | 83 | 70 | 48 | 41 | 2.6 | 3 × 10-10 |
| 25 | 0 | 50 | 76 | 72 | 43 | 35 | 2.8 | 3 × 10-10 |
| 30 | 0 | 56 | 75 | 67 | 40 | 30 | 3.2 | 6 × 10-10 |
|
|
||||||||
| 10 | 0.5 | 36 | 84 | 81 | 56 | 50 | 1.8 | 2 × 10-9 |
| 15 | 0.5 | 42 | 81 | 77 | 49 | 42 | 2.3 | 6 × 10-10 |
| 20 | 0.5 | 50 | 79 | 71 | 43 | 35 | 2.5 | 5 × 10-9 |
| 25 | 0.5 | 50 | 73 | 72 | 39 | 31 | 2.8 | 4 × 10-9 |
| 30 | 0.5 | 56 | 71 | 67 | 35 | 25 | 3.2 | 7 × 10-9 |
|
|
||||||||
| 10 | 1 | 32 | 63 | 85 | 37 | 28 | 2.2 | 2 × 10-8 |
| 15 | 1 | 42 | 64 | 78 | 34 | 25 | 2.3 | 2 × 10-8 |
| 20 | 1 | 50 | 63 | 72 | 29 | 21 | 2.5 | 1 × 10-8 |
| 25 | 1 | 50 | 57 | 73 | 25 | 18 | 2.9 | 2 × 10-8 |
| 30 | 1 | 56 | 55 | 68 | 22 | 14 | 3.2 | 3 × 10-8 |
Notes. See notes of Table 1.
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