A note on obtaining symmetrical angular yield curves in MeV ion channeling |
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Affiliation: | Department of Physics and Astronomy, University of Pittsburgh, Pittsburgh, PA 15260, USA |
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Abstract: | Planar channeling effects can distort the angular yield (dip) curve measured about an axial channeling direction. Two methods for minimizing distortion due to planar channeling are discussed: 1) varying the angles θ and φ of a two-axis goniometer together during the angular scan, and 2) remounting the sample so that a scan of only θ produces an undistorted symmetric dip curve. In practice, remounting the sample is preferred in order to minimize effects due to the mechanical limitations of the goniometer. |
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