A patient is treated using an isocentric AP/PA midline techn…

A patient is treated using an isocentric AP/PA midline technique, 6 MV with the prescription for a total of a 45 Gy in 25 fractions.  The IFD is 20 cm., ES is 16 cm.2, RDR is 1.0, FSF is 1.024.   A 45-degree wedge with a factor of .580 is used on both fields which are weighted 2:1, AP/PA.  Calculate the PA MU using a TAR.