The Gradient of γ-Rays Irradiation’s Energy and Its Use in Treatment of Cancer Diseases  

作　　者：Labinot Kastrati Gazmend Nafezi Gë zim Shehi Labinot Kastrati;Gazmend Nafezi;Gëzim Shehi(Department of Radiotherapy, Clinic of Oncology, University Clinical Center of Kosovo, Pristina, Kosovo;Faculty of Mathematical and Natural Sciences, University of Pristina, Pristina, Kosovo;Department of Physics, Faculty of Natural Sciences, University of Tirana, Tirana, Albania)

机构地区：[1]Department of Radiotherapy, Clinic of Oncology, University Clinical Center of Kosovo, Pristina, Kosovo [2]Faculty of Mathematical and Natural Sciences, University of Pristina, Pristina, Kosovo [3]Department of Physics, Faculty of Natural Sciences, University of Tirana, Tirana, Albania

出　　处：《International Journal of Medical Physics, Clinical Engineering and Radiation Oncology》2016年第2期150-153,共4页医学物理学、临床工程、放射肿瘤学（英文）

摘　　要：The Ionising irradiations used mostly in the treatment of tumoral diseasses are: X, γ, β and e irradiations. The discussion will be about γ irradiations, produced in linear accelerator with photon energy 6 MV and 15 MV. It is important to know the absorption performance before and after the electronic equilibrium. This is a reason that we’ve used the function of dose gradient for irradiations γ. It represents the velocity of dose change as a function of depth in tissue. From skin to maximum dose value, the increase of G-function is more accentuated for γ-rays than for β-particles while after that the G-function decreasing is less sharp for γ-rays. Finally, we’ll discuss about the advantages in terms of radiation protection of γ-rays used in radiotherapy.The Ionising irradiations used mostly in the treatment of tumoral diseasses are: X, γ, β and e irradiations. The discussion will be about γ irradiations, produced in linear accelerator with photon energy 6 MV and 15 MV. It is important to know the absorption performance before and after the electronic equilibrium. This is a reason that we’ve used the function of dose gradient for irradiations γ. It represents the velocity of dose change as a function of depth in tissue. From skin to maximum dose value, the increase of G-function is more accentuated for γ-rays than for β-particles while after that the G-function decreasing is less sharp for γ-rays. Finally, we’ll discuss about the advantages in terms of radiation protection of γ-rays used in radiotherapy.

关 键 词：γ-Rays G-FUNCTION Photon Energy Radiation Protection 

分 类 号：O57[理学—粒子物理与原子核物理]