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Modulated BBA

Modulated BBA. …the second 10 minutes… Jen Niedziela and Todd Satogata APEX Report. May 2, 2007. Set up to modulate IR Q1’s, Q3’s 1/40 Hz modulation on quad 1/10 Hz modulation on bump Down sampled BPMs to get 40 seconds of TBT data Script for data-taking now functional

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Modulated BBA

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  1. Modulated BBA …the second 10 minutes… Jen Niedziela and Todd Satogata APEX Report

  2. May 2, 2007 • Set up to modulate IR Q1’s, Q3’s • 1/40 Hz modulation on quad • 1/10 Hz modulation on bump • Down sampled BPMs to get 40 seconds of TBT data • Script for data-taking now functional • Interrupted by QLI in blue • Truncated time to ~20 minutes • Three data sets for bo6-qd1 • Two data sets for bo6-qd3 • Analysis in progress • Request one more hour

  3. Sample Data – bo6-bh12 ~160 turns between nodes, point of minimal response visible Quad Modulation frequency visible in BPM spectrum

  4. BBQ response bo6-qd3 bo6-qd1 (misfire)

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