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Brl cad users5/19/2023 ![]() The objective of the work discussed in this paper was to rectify this deficiency by integrating MCNP with a more powerful geometrical processor. Instead, complex CAD geometries are converted into MCNP geometrical constructs at great cost and subject to a high degree of error. Thus, no integrated tool exists for users wishing to run MCNP on existing engineering blueprints or designs. ![]() Moreover, there is no direct linkage between common CAD-based engineering formats and MCNP-style geometric descriptions. The representation of geometric cells using this type of approach can be very tedious and is not possible for extremely complex geometries. The physical problem geometry in MCNP is defined by the user through specification of surfaces and volumetric cells, which are formed from the intersections and unions of the surfaces. MCNP5 (hereafter referred to simply as MCNP) is a widely used Monte Carlo transport code that was developed at Los Alamos National Laboratory. In addition, performance of the new code and its limitations are discussed. In this summary BRL-CAD implementation of the GIFT library in MCNP5 and the main features of MCNP- BRL are introduced. an extended computer-aided design (CAD) geometry-driven version of MCNP5, was developed by linking MCNP5 to the BRL-CAD via a new geometry interface called the Geometry Interface for Transport (GIFT) library Application Programming Interface (API).
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