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. 2007 May 10;8(2):76–92. doi: 10.1120/jacmp.v8i2.2350

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© 2007 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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Locations of the test points within the CIRS phantom (CIRS, Norfolk, VA). Source‐to‐surface distance is 100 cm, field size is $26 \times 14$ cm, 500 monitor units. The yellow background is the tissue‐equivalent material.