P1.7 Science detector calibrations

• Phase : 1
• Status : Almost COMPLETE
• Category : Daytime testing (functionality and operability) (C3) + Daytime calibration (C4)
• Recurrence : starting from commissioining. daily/weekly/monthly/yearly depending on individual activities.
• Duration : 0.5 day

Description

• Calibration and testing of the SHARK-NIR science detector.

Prerequisites

• SHARK-NIR connected to LBT network.
• Electronics cabinets on.
• The cryostat should be running and cooled down.
• Internal alignment of the SHARK-NIR is verified.

Procedure

• Check bias calibration & master dark scripts and then perform the following daytime calibration procedures below.

Code	Activity	Location to perform this test
SDC1	Instrumental background for science	Padova / LBT cleanroom / LBT Platform
SDC2	Instrument flat field, detector linearity and bad pixels	Padova / LBT cleanroom
SDC3	Wavelength calibration	Padova / LBT cleanroom
SDC4	Thermal background	Padova / LBT cleanroom / LBT Platform
SDC5	Detector gain	Padova / LBT cleanroom / LBT Platform
SDC6	Detector persistence	Padova / LBT cleanroom / LBT Platform
SDC7	Spectral resolution	Padova / LBT cleanroom
SDC8	Ghost calibration	Padova (remote)

• Check the working of all the detector read-out modes and windowing possibilities. Note that this will be checked rigorously in the Padova laboratory.

Templates

• SHARKNIR_cal_InstrumentBackground - tested and working
• SHARKNIR_gen_cal_InstrumentFlatField - tested and working
• SHARKNIR_lss_cal_Wavelength - tested and working
• SHARKNIR_gen_mon_ThermalBackground - tested and working
• SHARKNIR_di_mon_DetectorGain - tested and working
• SHARKNIR_ci_mon_DetectorPersistence - tested and working
• SHARKNIR_lss_mon_SpectraResolution - tested and working
• SHARKNIR_cal_mon_Ghost - to be tested

Success criteria

• SCICAM linearity as expected.
• SCICAM bad pixels mask created.
• SCICAM bias and flat scripts working.
• All individual activity (in the table) success criteria are met.

Notes

• Save all the intermediate images to check the SHARK-NIR Data Reduction pipeline.

LBTO support

• Liquid Nitrogen refill is required in the cleanroom.

Date performed and by whom