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. 2008 Oct 24;9(4):57–67. doi: 10.1120/jacmp.v9i4.2811

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© 2008 The Authors.

This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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(a) Monte Carlo and effective source‐to‐surface distance (SSD) relative outputs for 9 MeV electron beam. (b) Percentage differences between Monte Carlo and effective SSD.