Table 5.
HRIEUV telescope measured performance summary.
| Parameter | Measured value | Uncertainty |
|---|---|---|
| Peak wavelength | 17.4 nm | |
| Spectral response (efficiency in open filter position) at 17.4nm | > 1.6 e.ph−1 | 16 % |
| Platescale | 0.492 arcsec.pixel−1 | < 1% |
| Telescope focal length | 4187 mm | < 1% |
| Read noise (HG) | 2.8 e rms | 0.2 e |
| Dark current (pix) | < 0.05 e.s−1 @ –50 °C | 0.02 e.s−1 |
| Spectral efficiency @ 17.4 nm | 5 DN.ph−1 | 10 % |
| Electronic gain, HG (mean) | 0.64 DN.e−1 (1.6 e.DN−1) | 10% |
| Electronic gain, LG (mean) | 0.027 DN.e−1 | 10% |
| Non-linearity sat (LG) | > 130 ke (> 3558 DN) | |
| EUV HG effective gain (mean) @ 17.4 nm | 7 DN.ph−1 | 10 % |
| Photo-response non-Uniformity (PRNU) | < 2 % |
Notes. Values in DN correspond to 12-bit scale of the corresponding LG or HG of the detector.
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