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Modulated BBA

This report by Jen Niedziela and Todd Satogata details the modulation of Infrared (IR) Q1, Q2, Q3, and Q5 parameters using various frequencies, including 1/20 Hz and 1/5 Hz. The study transitioned from an initial setup of 1mm to 5mm later on and included down-sampling of Beam Position Monitors (BPMs). Key data points comprised 20 seconds of Turn-by-Turn (TBT) data collected every 1562 turns. The report emphasizes the need for enhanced data collection scripts, ongoing analysis, and requests for additional TBT orbit plot data if available.

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Modulated BBA

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  1. Modulated BBA Jen Niedziela and Todd Satogata APEX Report May 18, 2007

  2. May 16, 2007 • Set up to modulate IR Q1’s, Q2’s, Q3’s, and Q5’s • 1/20 Hz modulation on quad • 1/5 Hz modulation on bump across quad • Started out with 1mm • Went to 5mm later in study • Down sampled BPMs • 20 seconds of TBT data • Data every 1562 turns (1 sample/19.5ms) • Made data taking faster with enhanced script • Took one dataset for IR6, 8, 10, and 12 in BLUE • Analysis in progress • Request time to get data in yellow if available

  3. TBT orbit plot bi9-bv1

  4. Sample Data – bi9-bvs

  5. Sample data – bi9-bhs

  6. Beta Functions From AT Model: BetaX = 71.052 BetaY = 94.378

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