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Survey Tube Realignment Corrections Evaluation

Evaluating the correction of survey tube alignment errors for precise measurements. Phi is now always measured as the stack number for improved accuracy. Easy fixes to achieve correct readings between the original and corrected DelX. Analysis shows small errors with systematic variations that can be easily addressed. This study aims to subdivide further for accurate data in cm.

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Survey Tube Realignment Corrections Evaluation

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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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