Table 10.
Summary of MIPA performances
| Parameter | Required | Actual | Comment |
|---|---|---|---|
| Energy range | 500 eV – 10 keV | 15 eV – 15 keV | |
| Energy resolution ΔE/E | < 30% | 7.2% | Coincidence channel |
| Field of view | 2□ | 80∘ × 360∘, 24 or 48 angular pixels | Extended to maximum, with the exception of 8∘ azimuth × 72∘ polar blind sector in the zenith direction in correspondence to the magnetic boom, 13∘ × 24∘ in the direction of Low gain antenna boom |
| Angular resolution (FWHM) | Δα < 25∘ |
40∘ × 20∘ (max pixel) 5∘ × 15 (min pixel) |
direction dependent |
| Mass range, amu | 1 - 23 | 1 – 50 | |
| Mass resolution | H, alfa, heavy | M/ΔM ∼2 | |
| Sampling time | 7.81 ms | ||
| Time resolution | < 5 min | 18 s, Full Angular–Energy cycle (24A × 96E) |
Full FOV coverage achieved, Number of energy steps increased For the (8A × 32E) coverage, the time resolution is 2 sec (fast mode) |
| Efficiency, E | 12% | ||
| Geometrical factor, w/o ε, | 10−6≤GF≤10−4 cm2 sr | ∼2⋅10−6 cm2 sr eV/eV -> 2⋅10−3 cm2 sr eV at 1 keV | Azimuth dependent |
| Dynamical range | 2⋅107 |