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Vibration study report4/10/2013LCLS-II Physics meetingA. Lutman, J. Turner

12Talk OveriewAnalysis description

Results

23Scheme I - Simulation

Fit averageFirst momentFit 1 averageFit 2 average First momentAreaTwo Gaussians: fit poorlyAsymmetric Gaussian: nice but lengthyTwo separated Gaussians fit well each featureImage at MEC34Reference run 35 (no works during this run)

Left feature position XTime ~(27k shots)Frequency ~(27k shots)Slice standard deviationfull set standard deviationSamples with no image, and missing timestamps have been filled with the average of the adjacent samples.Frequencies higher than baseline

Low: 0-2 Hz13.3 Hz 16.5 Hz19.5-20.2 Hz25.17 Hz29.5 Hz31.4 Hz47.2 Hz47.8 Hz49.4 Hz57.5 Hz58.8 Hz59.1 Hz59.3 Hz45Sample runs (run 37)

Run 37, another reference after moving mirrorsRun 41 (during Jackhammer)For the analysis only the longest consecutive interval without big disturbances has been considered, for each dataset.56Jackhammer (4-7)

67Jackhammer (4-7)

78Jackhammer (4-7)

Right spotLeft spotX positionY position89Backhoe (8-13)

910Backhoe (8-12)Right spotY position

10

11Backhoe (8-13)Right spotLeft spotX positionY position1112Concrete Vibrator (14-18)

1213Concrete Vibrator (14-18)

1314Concrete Vibrator (14-18)

Right spotLeft spotX positionY position1415Concrete Vibrator (14-18) Y-Low frequencies

Y centroid 0 to 6 Hz range1516Plate Compactor (19-22)

1617Plate Compactor (19-22)

17

18Plate Compactor (19-22)

1819Core Drilling (23-26)

1920Core Drilling (23-26)

2021Backhoe (27-30)

2122Backhoe (27-30)

2223Jackhammer (31-34)

2324Jackhammer (31-34)

2425Jackhammer (38-41) New reference 37

2526Jackhammer (38-41) New reference 37

2627Backhoe (43,45) New reference 37

2728Backhoe (43,45) New reference 37

2829Plate Compactor (47-49) New reference 37

2930Plate Compactor (47-49) New reference 37

3031Concrete Vibrator(50,52-54) New reference 37

3132Concrete Vibrator(50,52-54) New reference 37

3233Jackhammer (54-57,59) New reference 37

3334Jackhammer (54-57,59) New reference 37

12 Hz 3435Core Drilling (60-63) New reference 37

3536Core Drilling (60-63) New reference 37

3637Backhoe (64-67) New reference 37

3738Backhoe (64-67) New reference 37

29.7-30.3 Hz 38