Object: Using computer to calculate average energy lost by photons at every points in each body, in order to determine the dose distribution of photonradiation in the water phantom.
Considering recoil of electron, a new theory to explain axial channelling radiation is presented based on Compton scattering of virtual photon with relativistic electron.
考虑电子的反冲的影响，利用虚光子与相对论电子的康普顿散射理论对轴沟道辐射进行了研究。
3
The concept of the radiation pressure and the physical essence of it are presented based on the photon gas.