Comparison of PDPs for TSI dosimetry

This work is to demonstrate the initial phase of the method used to perform the dosimetry for implementation of Total Skin Irradiation (TSI) obeying the rules of spatial distribution of dose (range of ± 8% in the vertical axis and ± 4% in the horizontal axis ) R50 and depth without the use of degraded. This required to obtain the best angle into two symmetrical fields to get the lowest-dose variation in the vertical plane of the patient. Then was measured in the PDP for the fields and angled to direct the beam (90). Comparing the PDPs was observed a small difference between the curves can then get only the PDP with the direct beam. (author)