Particle tracking acceleration via signed distance fields in direct-accelerated geometry Monte Carlo

Journal Article · Sat Aug 26 00:00:00 EDT 2017 · Nuclear Engineering and Technology

DOI:https://doi.org/10.1016/j.net.2017.08.008· OSTI ID:1425791

Shriwise, Patrick C. ^[1]; Davis, Andrew ^[1]; Jacobson, Lucas J. ^[1]; Wilson, Paul P. H. ^[1]

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1. Univ. of Wisconsin, Madison, WI (United States). CNERG Research Group

Computer-aided design (CAD)-based Monte Carlo radiation transport is of value to the nuclear engineering community for its ability to conduct transport on high-fidelity models of nuclear systems, but it is more computationally expensive than native geometry representations. This work describes the adaptation of a rendering data structure, the signed distance field, as a geometric query tool for accelerating CAD-based transport in the direct-accelerated geometry Monte Carlo toolkit. Demonstrations of its effectiveness are shown for several problems. The beginnings of a predictive model for the data structure's utilization based on various problem parameters is also introduced.

• Research Organization: Univ. of Wisconsin, Madison, WI (United States)
• Sponsoring Organization: USDOE Office of Science (SC), Fusion Energy Sciences (FES); Nuclear Regulatory Commission (NRC) (United States)
• Grant/Contract Number: FG02-99ER54513; SC0017122; NRC-HQ-84-14-G-0030
• OSTI ID: 1425791
• Journal Information: Nuclear Engineering and Technology, Vol. 49, Issue 6; ISSN 1738-5733
• Publisher: Korean Nuclear Society
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
Monte Carlo
radiation transport
CAD
DAGMC