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GE21-M-04L1A: Disconnect/Broken HV connection to G2Top

We noticed a very bad efficiency for this chamber after a few good runs with a good efficiency. Screenshot_2025-05-22_at_6.25.13_PM immagine

As the bad efficency is for the whole module and nothing strange was found in the electornics or the DAQ config, the HV was checked closely.

It is found that for this module, during ADJUST the current in G3Top doesn't reflect the beams' activity as the other modules A for instance GE21-M-03L1A in the following plots.

Screenshot_2025-05-22_at_7.12.37_PM

Upon an inspection of the other electrodes, it seems that G2Top doesn't register currents when the HV settings is changed, which could be hint of a faulty or broken HV connection.

Screenshot_2025-05-22_at_7.13.14_PM

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