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. Author manuscript; available in PMC: 2012 Jul 18.
Published in final edited form as: Scanning. 2011 Jul 18;33(3):135–146. doi: 10.1002/sca.20262

Figure 2.

Figure 2

Schema of the intersection of an electron trajectory and a triangle and the change of region associate with it. A: single triangle where the new region is Au. B: two triangles overlap and ambiguity in the determination of the new region. C: intersection of two triangles with discontinuity in the determination of the new region. D: small gap approach to resolve these two problems. E: another ambiguity in the determination of the new region (the red dash lines define the lateral limit of the Au region of the plane shape).