Monte Carlo Calculation of the Dose Profiles for a 6 MeV Electron Beam with Longitudinal Magnetic Fields

  • Jeong, Dong-Hyeok (Dept. of Rad. Onc., Wonkwang Univ. Hospital, Iksan) ;
  • Oh, Young-Kee (Dept. of Rad. One., Kyungpook Nat. Univ. Hospital, Taegu) ;
  • Kim, Jhin-Kee (Medical Sci. Inst., Chonbuk Nat. Univ. Hospital, Jeonju) ;
  • Kim, Jeung-Kee (Dept. of Rad. One., Dong-A Univ. Hospital, Pusan) ;
  • Shin, Kyo-Chul (Dept. of Therapeutic Radiology, Dankook Univ. Hospital, Cheonan) ;
  • Kim, Ki-Hwan (Dept. of Therapeutic Radiology, Chungnam Nat. Univ. Hospital, Teajeon) ;
  • Lee, Jeong-Ok (Dept. of Radio tee., Wonkwang Health Science College, Iksan) ;
  • Kang, Jeong-Ku (Dept. of Rad. One., Presbyterian Medical Center, Jeonju) ;
  • Moon, Sun-Rock (Dept. of Rad. Onc., Wonkwang Univ. Hospital, Iksan)
  • Published : 2002.09.01

Abstract

Using Monte Carlo calculations the effects of longitudinal magnetic fields on the beam profiles produced by clinical electron beam were studied. The Monte Carlo calculations were performed using the EGS4 code system modified to account for external magnetic fields. The beam profiles for a 6 MeV electron beam with longitudinal magnetic fields of 0.5-3.0 T were calculated. As a result of these calculations we found that the penumbra widths can be reduced with increased magnetic fields. This means that the electron therapy benefits from the external magnetic fields.

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