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  1. Commissioning Activity Planning
  2. CAP-220

High-frequency pick-up noise in CCD biases

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    Details

    • Type: Task
    • Status: Done
    • Priority: Undefined
    • Resolution: Done
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: AuxTel

      Description

      Since the change in connection between the cryostat and the WREB for CCD signals, all biases show a high-frequency noise that is highly correlated between channels. This noise shows up in the plot averaged over rows, so it seems coherent with the readout. It might not be simple pick-up noise, but a grounding issue can create this type of high-frequency injection.

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          rhl Robert Lupton added a comment -

          Is this still relevant with the ITL-A and possible related cabling problems?

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          rhl Robert Lupton added a comment - Is this still relevant with the ITL-A and possible related cabling problems?
          Hide
          juramy Claire Juramy added a comment -

          Issue disappeared after changing the whole hardware.

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          juramy Claire Juramy added a comment - Issue disappeared after changing the whole hardware.

            People

            Assignee:
            Unassigned Unassigned
            Reporter:
            juramy Claire Juramy
            Watchers:
            Andrew Bradshaw, Claire Juramy, Kirk Gilmore [X] (Inactive), Robert Lupton
            Votes:
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            Watchers:
            4 Start watching this issue

              Dates

              Created:
              Updated:
              Resolved:

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