Verification of Absorbed Radiation Dose for X-rays through Lagrange’s Interpolation Method
Saeed Ahmad Buzdar1Qurat-ul-Ain Shamsi1M.Afzal1Aalia Nazir1Muhammad Altaf Hussain Nizamani2Muhamad Asghar Gadhi3
1. Department of Physics,The Islamia University of Bahawalpur,Pakistan2. Department of Physics, University of Sind,Jamshoro, Hyderabad, Paksitan3. Bahawalpur Institute of Nuclear Medicine & Oncology (BINO),Bahawalpur, Pakistan
摘要：The advent of modern technologies and mega voltage beam energies in radiation therapy has increased the demand of higher degree of accuracy and efficiency.We intended to increase the efficiency of the radiation therapy by applying mathematical and computational tools not only to verify the measured Percentage Depth Dose（PDD）data but also to aid in rapid machine commissioning.Lagrange’s interpolation method was used to calculate the absorbed doses at depths with step size of 1cm.The measured PDD data at selected depths with 5 to 8 cm separation have been used as the points of interpolations.The interpolated results precisely agree with the measured data,and can be used as the input data for treatment planning.This exploration should be extended for the interpolation of dose for different field sizes as well so that the commissioning time can be further decreased and the reliability of the measured data is assured.
The 4th Session of 2013 Workshop of Pakistan Academy of Sciences