Red CCD Characteristics
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Red CCD Characteristics |
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Note: This is for a previous generation detector on LRIS, not the current detector.
In June 2004 the clock driver board failed. Some capacitors and the ADC were replaced.In the period 2002-May-9 to 2003-July-28 the detector electronics was not working properly and, as a result, strong blooming was generated by pixels at the ~34,000 ADUs level or higher.
| Board | Service Dates |
Measure Date |
Gain* [e-/ADU] |
Noise* [e-/pixel] |
Bias* [ADU] |
Linearity
[up to ... ADU] |
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|---|---|---|---|---|---|---|---|---|---|---|
| Left | Right | Left | Right | Left | Right | Left | Right | |||
| CCD-2 Leach Gen 1 - After repair | 2003-June-10 | 2003-June-13 | 1.98 | 2.17 | 6.1 | 6.3 | ~752 | ~850 | ~60,000 | ~62,000 |
| CCD-2 Leach 1 system | 2003-Aug-07 | 2003-Aug-7 | 1.98 | 2.21 | 6.2 | 8.6 | ~735 | ~835 | ||
| CCD-2 Leach 1 system + temp electronics | 2003-July-31 - 2003-July-29 |
2003-July-28 | 1.46 | 1.36 | 6.2 | 6.8 | - | - | ||
| CCD-2 Leach 1 system | 1996-Jun-24 - 2002-May-8 |
1996-Jun-26 | 1.97 | 2.10 | 6.3 | 6.6 | ~990 | ~1080 | ||
| Combo CCD-1 Leach system | 1995-Dec-7 - 1996-Jun-24 |
1995-Dec-8 | 1.83 | 2.16 | 5.34 | 5.53 | ~850 | ~920 | ||
| Spare Leach system | 1995-Oct-17 - 1995-Nov-15 |
1995-Oct-20 | 1.38 | 1.43 | 9.9 | 10.1 | ~727 | ~793 | ||
| Primary Leach system | 1995-Jul-20 - 1995-Oct-17 |
1995-Aug-28 | 2.19 | 2.19 | 6.65 | 6.16 | ~940 | ~968 | ||