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Injector Commissioning & Optimization QWeak Collaboration Meeting November 08, 2009

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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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