TITLE:
The Gradient of γ-Rays Irradiation’s Energy and Its Use in Treatment of Cancer Diseases
AUTHORS:
Labinot Kastrati, Gazmend Nafezi, Gëzim Shehi
KEYWORDS:
γ-Rays, G-Function, Photon Energy, Radiation Protection
JOURNAL NAME:
International Journal of Medical Physics, Clinical Engineering and Radiation Oncology,
Vol.5 No.2,
May
26,
2016
ABSTRACT: 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.