N. D. T, B. D. L, Q.T. P. Dosimetric characteristics of 6 MV photons from TrueBeam STx medical linear accelerator: simulation and experimental data. Nucl. Sci. and Tech. [Internet]. 2019Jun.15 [cited 2024Nov.24];9(2):37-44. Available from: http://jnst.vn/index.php/nst/article/view/51