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    News on BPM, vdM and ML

    → Europe/Zurich
    6/2-008 (CERN)

    6/2-008

    CERN

    15
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    GUI + python 2 comits and check

    Piotr will comit his changes next week and Ana's commit is postponed.

    Test day July 1st !

     

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    Ana, Update on BPM calibrations

    Outlayers presented in BI meeting dissappeared. Now very few outlayers appear likely due 

     

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    Hector, vdM news

    Montecarlo simulations with magnetic error to understand k-mod results in vdM optics.

    MQX errors a bit larger than in Andy's report, set to 7 e-4.  The errors introduce about 1/19 beta-beating.

    Bad beta* reconstruction has also large reconstructed waist. 

    Leon suggests to prevent the algorithm to jump to a larger beta* than 25m.

    Check with model waist.

    At 17m there is only one bad measurement out of ~200, so 17 m would be a better location.

    To check also the phase advance in between Q1L and Q1R.

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    Hector, ML for tune measurement cleaning.

    In the Qx,Qy plane one can apply a DBSCAN algorithm that assigns a density.

    Tune moving by trims is nice identified as different clusters.

    Tune moving during Kmod is also nicely cleaned, cluster is the full kmod range.

    ->Compare to regular cleaning tools.

    In general correlating drifts in Timber is a nice exercise.

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