Changes between Version 11 and Version 12 of docs/CommissioningPlan/P2.6


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Timestamp:
02/05/21 17:12:04 (4 years ago)
Author:
kradhakrishnan
Comment:

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  • docs/CommissioningPlan/P2.6

    v11 v12  
    1212**Procedure**
    1313•       Go to a specific elevation of the telescope.
    14 * Close the AO loop to produce the best PSF at the pin of the pyramid of the SOUL WFS. KEep that shape steady on ASM.
     14* Close the AO loop for the on-axis light source to produce the best PSF at the pin of the pyramid of the SOUL WFS. Keep that shape steady on ASM.
    1515* Now, optimize the PSF shape on the SCICAM using the trial & error algorithm. The ALPAO-DM on the SHARK-NIR Bench is used to apply different modes. [Currently, this is the baseline approach].
    1616•       For the same elevation, keeping the same ASM shape as before and the same source, perform the phase-diversity test (with flat ALPAO-DM) making use of the Wollaston prism and dual-band imager lens configuration. Apply the obtained NCPA on the ALPAO DM within SHARK. Take SCICAM images to see the improvement. [In case the NCPA produced by the baseline approach is not stable enough for a longer period and/or if more correction seems necessary for high contrast, we will be implementing this approach (for which we will be using the star itself as the source during nighttime)].
    1717•       Note that in the above two cases, the optical path contains the same optics (except for the Wollaston and DBI lens) including the dichroic and IN_TT of the deployable arm.
    18 * Repeat these measurements for the decided discreet zenith angles (or elevation of the telescope), SHARK-NIR DROT angle (fixed), and star (source) brightness.
     18* Repeat these measurements for the decided discreet zenith angles (or elevation of the telescope) and SHARK-NIR DROT angle (fixed).
    1919
    2020**Success criteria**