Numerical investigation of absorption dose distribution of onion powder in electron irradiation system by MCNPX code
نویسنده
چکیده
a Department of physics, faculty of science, Takestan Branch, Islamic Azad University,Takestan, IRAN. b Engineering Department, Shahid Beheshti University, G.C., P.O. Box 1983963113, Tehran, IRAN. ________________________________________________________________________________________ Abstract: Absorption dose distribution of onion powder in electron irradiation system has been numerically investigated by using of MCNPX (Monte Carlo N-Particle extended) software package and the real parameters of the Rhodotron Accelerator at Yazd Radiation Processing Center (YRPC) of Atomic Energy Organization of Iran (AEOI). The simulations were carried out for the cases in which the onion powder was irradiated by one sided and double-sided electron irradiation and with homogeneous and inhomogeneous sample structures. The line dose profiles and surface dose profile, as well as iso-dose profiles for different depths, and 3D profile of dose distributions in each case were also studied. The simulation results indicated that the dose distribution for double-sided irradiation is uniform and its maximum is in the center. The results also showed that the maximum of depth–dose curve on one-side and double-side irradiation is up to maximal value of 33 kGy and 44 kGy, respectively.
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