Introduction: The aim of this study is to analyze the gradient of percentage depth dose for photon and electron beams of LINACs and to simplify the data set.
Materials and Methods: Dosimetry measurements were performed in accordance with Technical Reports Series No. 398 IAEA.
Results and discussion: The gradient of percentage depth dose was calculated and compared with the available published data.
Conclusion: Instead of percentage depth dose for increasing and decreasing parts, the findings suggest using only two numbers for specific gradient of dose, separately. In this way, they can replace the whole set of the percentage depth dose (PDD).
