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Injector Commissioning & Optimization QWeak Collaboration Meeting Summary

Detailed plan and timeline for higher voltage commissioning and optimization of the QWeak experiment, including electron polarization reversal, new helicity board commissioning, and necessary target acquisition for QWeak pattern and reversal rate. Meeting highlights key tasks, timeline, and needed support like new IA, injector matching, and adiabatic damping.

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Injector Commissioning & Optimization QWeak Collaboration Meeting Summary

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  1. Injector Commissioning & Optimization QWeak Collaboration Meeting February 1, 2010

  2. Team • Coordinator: Suleiman • Members: Poelker, Grames, Hansknecht, King, Carlini, Paschke, Ramsay • Plan: • Higher Voltage: • Gun: Feb 2010, Test Cave • CEBAF Beamline: May 2010 • Electron Polarization Reversal: Commission at 100 kV during PREx, >100 kV in May 2010 • New Helicity Board: Commission during PREx • QWeak Pattern: May 2010 • QWeak Reversal Rate: May 2010 (need target & Lumi) • New IA (Charge Feedback): May 2010 (need analysis support)

  3. Higher Voltage (May 2010) • Inverted Gun to > 100 kV • Injector to > 100 keV • Commission Wien Flipper at > 100 keV • Injector Matching & Adiabatic Damping (Yves Roblin) • 3 days are needed

  4. Parity Quality Setup (May 2010) • Laser Alignment of Pockels Cell: • Initially, we will do our quick setup with a spinning WP + LP • Electron beam optimization (PQB): • RHW Angle • 1 shift is needed • IA Charge Feedback • 1 shift is needed

  5. Helicity Board Settings (May 2010) • Helicity pattern • Helicity reversal rate: need target • Pockels Cell T_Settle • 3 shifts are needed

  6. Issues • Need a student and a postdoc • 32 MHz beam for background studies: work is underway

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