Changes between Initial Version and Version 1 of docs/CommissioningPlan/P3.22

Timestamp:

03/05/20 13:35:59 (5 years ago)

Author:

kradhakrishnan

Comment:

--

docs/CommissioningPlan/P3.22

@@ +1 @@
+ == P3.22       Instrument flat field, detector linearity and bad pixels == 
+•       **Phase**               :       3  
+•       **Status**              :       Draft    
+•       **Category**            :       Daytime calibration (C3)
+•       **Recurrence**  :       every day, with setup on request.
+•       **Duration**            :       20 minutes per configuration
+**Description**
+•       Instrument flat field, detector linearity, and bad pixels. 
+**Prerequisites**
+**Procedure**
+•       Use the calibration flat-field source.
+•       This calibration is performed illuminating the detector uniformly using the instrument FF lamp, for each filter. 
+•       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. 
+**Success criteria**
+•       95% luminous uniformity at large scale.
+•       99% luminous uniformity at pixel-to-pixel scale 10-2.
+•       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.
+**Notes**
+•       Same as activity 7.9 in AD4
+**LBTO support**
+•       Support from LBTI/LBTO?
+**Associated SHARK-NIR personnel**
+•       JF, LM, MdP
+**Date performed and by whom**