P1.10 Verification of the operability of the motors & light sources and looking for filter defects/artifacts

• Phase : 1
• Status : Draft
• Category : Unpack, Assemble, and Verification (C1)
• Recurrence : once
• Duration : 1.5

Description

• Checking the working of motors and light sources within SHARK-NIR using optical feedback. Finding the filter defects/artifacts using an internal calibration source (flat-field) within the instrument.

Prerequisites

• SHARK-NIR connected to LBT network.
• Electronics racks on.
• DM best shape uploaded (shape minimizing internal aberrations)
• The cryostat should be running and cooled down.

Procedure

• When the services are up and running, after the motors are homed, each of the individual motors is individually tested for their different named/nominal positions.
• The light sources within SHARK-NIR are used simultaneously to check the working of the motors looking at the optical feedback.
• Check the CRED-2 and ALPAO-DM SW and optical feedback.
• Take the images of all the filters using the internal calibration source (flat-field) within the instrument to locate/find out the filter defects/artifacts, if any. You may take short- and long-exposures to get better contrast of the features if required.

Success criteria

• All the motors can reach the named positions / nominal positions.
• All the light sources are working and confirmed through optical feedback at the SCICAM.
• CRED-2 AND ALPAO-DM working normally.
• All the filter images saved.

Notes

LBTO support

• Liquid Nitrogen refill is required in the cleanroom.

Associated SHARK-NIR personnel

Date performed and by whom

Comments

• KR: add the filter monitoring routine check.