SHANG Jing LI Weimin. Radiation field calculation outside the duct-embedded shielding wall of an E-beam irradiator[J]. Nuclear techniques, 2011, 34(5): 372-376.
SHANG Jing LI Weimin. Radiation field calculation outside the duct-embedded shielding wall of an E-beam irradiator[J]. Nuclear techniques, 2011, 34(5): 372-376.DOI:
Duct-embedded shielding walls of an electron beam irradiator may weaken the shielding effect locally.In order to evaluate how this happens to the E-beam irradiator
the radiation dose distribution outside the duct-embedded walls and on the pipes axis were simulated by the Monte Carlo code of MCNP.The simulation results show that with increasing duct angles to the wall
the photon energy spectrum softens and the radiation dose reduces generally
but at the angles exceeding 50°
the radiation doses are not in apparent decreases.In addition
the duct diameter is an important factor for the radiation shielding.Based on the simulation
suggestions are given for reference of shielding designs of cable irradiation facilities.