FONT Meeting1 3-BPM resolution with digital filtering N. Blaskovic.

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FONT Meeting1 3-BPM resolution with digital filtering N. Blaskovic

Contents 3-BPM resolution using –Single-sample point & averaging –Fitting & transfer matrices –Raw unfiltered data & 25 MHz digital LPF FONT Meeting2N. Blaskovic

Data Data from 12 June 2015 (first shift with high β optics for 3-BPM resolution studies) No 714 MHz or C-band BPFs Charge: 0.7 x FONT Meeting3N. Blaskovic

No filtering Single-sample resolution –~90 nm by fitting –~100 nm using transfer matrices Multi-point averaging (not integration!) resolution –~50 nm by fitting –~50 nm using transfer matrices FONT Meeting4N. Blaskovic

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25 MHz digital LPF Single-sample resolution better than without digital LPF (except IPC with fitting) Multi-point averaging resolution worse than with digital LPF IPC resolution worse than that of IPA and IPB (when fitting) FONT Meeting7N. Blaskovic

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3-BPM resolution FONT Meeting10N. Blaskovic BPM Resolution (nm) Unfiltered25 MHz digital LPF FittingGeometricFittingGeometric PointAve.PointAve.PointAve.PointAve. IPA IPB IPC

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