Mesh generation method with variable weights based on gradient changes in a radiation field

doi:10.16511/j.cnki.qhdxxb.2019.21.026

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Abstract 3-D radiation field data is used for dose evaluations and design optimization. This paper presents a mesh generation method that uses variable weights based on gradient changes in a radiation field to improve the calculational speed and 3-D visualizations of the radiation field. The 3-D mesh has different densities that are arranged based on the radiation field gradients to balance the computational accuracy and efficiency. The point kernel integral method was used to verify the method. The results show that this non-uniform mesh generation method with variable weights effectively shortens the computing time for the point kernel integral method results. This method also provides better visualization of the radiation field. Thus, this study reduces the calculational time for the point kernel integral problem and gives better results for visualization and dose assessments of 3-D radiation fields in nuclear facilities.

Keywords 3-D radiation field point-kernel integration mesh generation dose visualization

Issue Date: 14 October 2019

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	HE Liang
	LI Hua
	ZHAO Yuan
	LIU Liye
	CAO Qinjian
	LI Junli

Cite this article:

HE Liang,LI Hua,ZHAO Yuan, et al. Mesh generation method with variable weights based on gradient changes in a radiation field[J]. Journal of Tsinghua University(Science and Technology), 2019, 59(10): 861-865.

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http://jst.tsinghuajournals.com/EN/10.16511/j.cnki.qhdxxb.2019.21.026 OR http://jst.tsinghuajournals.com/EN/Y2019/V59/I10/861

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