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Injector Commissioning & Optimization QWeak Collaboration Meeting November 08, 2009

Meeting plan for electron injector commissioning and optimization, focusing on higher voltage, beamline improvements, and polarization reversal projects. Includes key tasks, timeline, and challenges to address.

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Injector Commissioning & Optimization QWeak Collaboration Meeting November 08, 2009

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  1. Injector Commissioning & Optimization QWeak Collaboration Meeting November 08, 2009

  2. Team • Coordinator: Suleiman • Members: Poelker, Grames, Hansknecht, King, Carlini, Paschke, Ramsay • Plan: • Higher Voltage: • Gun: Dec 2009, 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. Standard Parity Setup (May 2010) • Laser Alignment of Pockels Cell: • +HV & -HV • Pitch, Yaw, & Roll • x & y Stages • IHWP IN/OUT • Pockels Cell OFF • Electron beam optimization (PQB): • RHW Angle • Photocathode Angle • Injector Matching & Adiabatic Damping (Yves Roblin)

  4. Issues • Hall B is taking physics beam • Need a student and a postdoc • Hall A and Hall B beams crosstalk with Hall C. Charge feedback on Halls A and B beams. • 32 MHz beam for background studies?

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