I study on the electron trajectory in matter. In this case, the bremsstrahlung emission, inelastic collision and elastic scattering are taken into account in order to calculate the electron trajectory. The obtained results for electron energy loss distribution in certain depth and depth-dose deposition are in excellent agreement with experimental data. On the other hand, when the electron incident energy increases more than 30 MeV, the consistency of the obtained results for depth-dose deposition decreases in comparison with the experimental data. In accordance with the literature [1], this inconsistency between the theoretical results and experimental data is originated from the effect of the secondary electron on the depth-dose deposition. Therefore, I need to found the answers for the following questions,
1. Is it true that this inconsistency just related to the effect of the secondary electron on the depth-dose deposition?
2. Is there any experimental data for depth-dose deposition of an energetic electron beam where the effect of the secondary electron on the depth-dose deposition is filtered?
[1] Luo Zhengming and Anders Brahme, Phys. Rev. B. 46 (1992) 15739–15752.
Dear Dr. Hanno Krieger
The depth dose deposition for an electron beam with incident energies above 30 MeV can be founded in the following references.
[1] Iwan Kawrakow, Matthias Fippel and Klaus Friedrich, Med. Phys. 23 (1995) 445–457.
[2] Luo Zhengming and Anders Brahme, Phys. Rev. B. 46 (1992) 15739–15752.
It is answered in the literature [3, 4] that this effect is originated from the energy loss by radiation. Thus, the effect of the secondary electron dose deposition on the total dose profile are not very important in comparison with the primary electron dose deposition.
[3] Mohammad Reza Kia and Houshyar Noshad, "Bremsstrahlung Probability Density Function in Thin Absorber", under review by Nucl. Instr. Meth. Phys. Res. B.
[4] Mohammad Reza Kia and Houshyar Noshad, "Calculation of Electron Trajectory in Matter", to be submitted for Phys. Med. Biol.
Dear Dr. Hanno Krieger
The depth dose deposition for an electron beam with incident energies above 30 MeV can be founded in the following references.
[1] Iwan Kawrakow, Matthias Fippel and Klaus Friedrich, Med. Phys. 23 (1995) 445–457.
[2] Luo Zhengming and Anders Brahme, Phys. Rev. B. 46 (1992) 15739–15752.
It is answered in the literature [3, 4] that this effect is originated from the energy loss by radiation. Thus, the effect of the secondary electron dose deposition on the total dose profile are not very important in comparison with the primary electron dose deposition.
[3] Mohammad Reza Kia and Houshyar Noshad, "Bremsstrahlung Probability Density Function in Thin Absorber", under review by Nucl. Instr. Meth. Phys. Res. B.
[4] Mohammad Reza Kia and Houshyar Noshad, "Calculation of Electron Trajectory in Matter", to be submitted for Phys. Med. Biol.
Dear Dr. Hanno Krieger
The depth dose deposition for an electron beam with incident energies above 30 MeV can be founded in the following references.
[1] Iwan Kawrakow, Matthias Fippel and Klaus Friedrich, Med. Phys. 23 (1995) 445–457.
[2] Luo Zhengming and Anders Brahme, Phys. Rev. B. 46 (1992) 15739–15752.
- Badges
- Science topic