Announcements
EMCCDs
'Alopeke & Zorro have two iXon Ultra 888 back-illuminated Electron Multiplying CCDs (EMCCDs).
| Type | iXon Ultra 888 EX |
| Size | 1024 x 1024 |
| Pixel Size | 13 μm |
| Dark current | 0.0002 e-/pix/sec |
| Well depth | 80,000 e- |
| Linearity | better than 99.9% |
| Timestamp accuracy | 10 ns |
| Minimum Exposure Time (s) | |||
| ROI / Binning | 1x1 | 2x2 | 4x4 |
| 1024x1024 | 0.0562 | 0.0278 | 0.0135 |
| 512x512 | 0.0282 | 0.0140 | |
| 256x256 | 0.0144 | ||
| Read Noise (e-) | ||||||
| EMCCD Amplifier | Conventional Amplifier | |||||
| Readout Speed (MHz) | 30 | 20 | 10 | 1 | 1 | 0.1 |
| Without EM | 130 | 80 | 40 | 12 | 6 | 3.5 |
| With EM | <1 | <1 | <1 | <1 | - | - |
| Gains | ||||
| Camera (Serial Number) |
Amplifier | HSSPEED (MHz) |
PREAMP Setting |
Gain (e-/ADU) |
| Alopeke Red (X-10244) |
Electron Multiplying | 30 | 2 | 5.61 |
| Electron Multiplying | 20 | 2 | 4.39 | |
| Conventional CCD | 1 | 2 | 0.80 | |
| Alopeke Blue (X-10405) |
Electron Multiplying | 30 | 2 | 5.54 |
| Electron Multiplying | 20 | 2 | 4.42 | |
| Conventional CCD | 1 | 2 | 0.76 | |
| Zorro Red (X-11807) |
Electron Multiplying | 30 | 2 | 5.42 |
| Electron Multiplying | 20 | 2 | 4.60 | |
| Conventional CCD | 1 | 2 | 0.78 | |
| Zorro Blue (X-11828) |
Electron Multiplying | 30 | 2 | 5.69 |
| Electron Multiplying | 20 | 2 | 4.76 | |
| Conventional CCD | 1 | 2 | 0.77 | |
