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Figure 21
Power spectral density of beam instabilities in the vertical plane, measured on the focal spot, in 2008 (black) and 2011 (red). The reduction in the amplitude of vibrations between 30 and 50 Hz is visible. |
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access
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Figure 21
Power spectral density of beam instabilities in the vertical plane, measured on the focal spot, in 2008 (black) and 2011 (red). The reduction in the amplitude of vibrations between 30 and 50 Hz is visible. |