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BMU ReAlignment

BMU ReAlignment. James N. Bellinger University of Wisconsin at Madison 29-July-2008 BMU Alignment Corrections. Corrections from Survey. Tube Front. Tube Back. Phi is always measured as stack number. Original DelX. WEST. WooHyun's plots. EAST. Earlier Corrected DelX.

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BMU ReAlignment

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  1. BMU ReAlignment • James N. Bellinger • University of Wisconsin at Madison • 29-July-2008 • BMU Alignment Corrections

  2. Corrections from Survey Tube Front Tube Back Phi is always measured as stack number

  3. Original DelX WEST WooHyun's plots EAST

  4. Earlier Corrected DelX Uses phi correction WEST Not quite correct yet. EAST

  5. Evaluation • The error in phi is small • The error varies systematically with phi • Should be easy to fix • Fit directly to delta-X

  6. Subdivide Further at SW Motivation: These look flat Del-X in cm phi

  7. New Corrected DelX WEST EAST

  8. Original vs Corrected DelX

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