Title :
Evaluation of Radiation Skyshine and Groundshine of a D-D Tokamak Using Monte Carlo Method
Author :
Chen, Y.X. ; Wu, Y.C.
Author_Institution :
Inst. of Plasma Phys., Chinese Acad. of Sci., Hefei
Abstract :
Computational analyses were performed to evaluate the radiation skyshine and groundshine from the D-D Tokamak EAST under various design cases. The Monte Carlo transport code MCNP-4C, the nuclear data library FENDL-2 and a simplified geometrical model were used. The influence of different filling materials for tokamak vacuum vessel and shielding hall roofs on the environmental dose rate distribution were investigated. The results indicate that the direct contribution to environmental radiation from the D-D neutron source decreases rapidly with the radial distance increasing and then the skyshine radiation dominates. In addition, the groundshine effect makes significant contribution to the environmental radiation
Keywords :
Monte Carlo methods; Tokamak devices; dosimetry; fusion reactor design; fusion reactor materials; neutron sources; nuclear engineering computing; radiation protection; shielding; D-D Tokamak EAST; D-D neutron source; Monte Carlo transport code MCNP-4C; computational analyses; environmental dose rate distribution; environmental radiation; filling materials; geometrical model; groundshine effect; nuclear data library FENDL-2; shielding design; skyshine radiation; tokamak vacuum vessel; Filling; Fusion reactor design; Libraries; Monte Carlo methods; Neutrons; Performance analysis; Physics; Plasma sources; Solid modeling; Tokamaks; Monte Carlo; groundshine; skyshine; tokamak;
Conference_Titel :
Fusion Engineering 2005, Twenty-First IEEE/NPS Symposium on
Conference_Location :
Knoxville, TN
Print_ISBN :
0-4244-0150-X
Electronic_ISBN :
0-4244-0150-X
DOI :
10.1109/FUSION.2005.252991
