Changes between Version 2 and Version 3 of docs/CommissioningPlan/SDC2


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Timestamp:
01/14/22 13:01:06 (3 years ago)
Author:
kradhakrishnan
Comment:

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  • docs/CommissioningPlan/SDC2

    v2 v3  
    11 == SDC2        Instrument flat field, detector linearity and bad pixels ==
    2 •       **Phase**               :       Any 
    3 •       **Status**              :       Draft   
    4 •       **Category**            :       Daytime calibration (C3)
    5 •       **Recurrence**  :       every day, with setup on request.
    6 •       **Duration**            :       20 minutes per configuration
     2
     3- **Phase**             :       Any 
     4- **Status**            :       Draft   
     5- **Category**          :       Daytime calibration (C3)
     6- **Recurrence**        :       every day, with setup on request.
     7- **Duration**          :       20 minutes per configuration
     8
    79**Description**
    8 •       Instrument flat field, detector linearity, and bad pixels.
     10- Instrument flat field, detector linearity, and bad pixels.
     11
    912**Prerequisites**
     13
    1014**Procedure**
    11 •       Use the calibration flat-field source.
    12 •       This calibration is performed illuminating the detector uniformly using the instrument FF lamp, for each filter.
    13 •       It is expected that the detector FF depends on filters, final accumulated charge in the pixels. Thus, a series of exposures will be taken at different count levels (realized via ND filters and/or DIT) for each filter setup. In this case, the template takes the background frames automatically. Comparing different count rates at constant DIT will also yield a linearity map of the detector.
     15- Use the calibration flat-field source.
     16- This calibration is performed illuminating the detector uniformly using the instrument FF lamp, for each filter.
     17- It is expected that the detector FF depends on filters, final accumulated charge in the pixels. Thus, a series of exposures will be taken at different count levels (realized via ND filters and/or DIT) for each filter setup. In this case, the template takes the background frames automatically. Comparing different count rates at constant DIT will also yield a linearity map of the detector.
     18
     19**Templates**
     20
    1421**Success criteria**
    15 •       95% luminous uniformity at large scale.
    16 •       99% luminous uniformity at pixel-to-pixel scale 10-2.
    17 •       Large scales filtered out, only small detector scale will remain. Effect of the large-scale flat field on DBI (rescaling in flux & wavelength) has negligible impact on DBI performances.
     22- 95% luminous uniformity at a large scale.
     23- 99% luminous uniformity at pixel-to-pixel scale 10-2.
     24- Large scales filtered out, only a small detector scale will remain. Effect of the large-scale flat field on DBI (rescaling in flux & wavelength) has negligible impact on DBI performances.
     25
    1826**Notes**
    19 •       Same as activity 7.9 in AD4
     27- Same as activity 7.9 in AD4
     28
    2029**LBTO support**
    2130
    22 **Associated SHARK-NIR personnel**
    23 
    2431**Date performed and by whom**