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SABRINA: an interactive solid geometry modeling program for Monte Carlo

Description: SABRINA is a fully interactive three-dimensional geometry modeling program for MCNP. In SABRINA, a user interactively constructs either body geometry, or surface geometry models, and interactively debugs spatial descriptions for the resulting objects. This enhanced capability significantly reduces the effort in constructing and debugging complicated three-dimensional geometry models for Monte Carlo Analysis.
Date: January 1, 1985
Creator: West, J.T.
Partner: UNT Libraries Government Documents Department

MORSE: current status of the two Oak Ridge versions

Description: There are two versions of the MORSE Monte Carlo radiation transport computer code system at Oak Ridge National Laboratory. MORSE-CG is the most well-known and has undergone extensive use for many years. Development of MORSE-SGC was originally begun in order to restructure the cross section handling and thereby save storage, but the more recent goal has been to incorporate some of the KENO ability to handle multiple arrays in the geometry and to improve on 3-D plotting capabilities. New capabilities recently added to MORSE-CG include a generalized form for a Klein Nishina estimator, a new version of BREESE, the albedo package, which now allows multiple albedo materials and a revised DOMINO which handles DOT-IV tapes.
Date: January 1, 1980
Creator: Emmett, M.B. & West, J.T.
Partner: UNT Libraries Government Documents Department

Criticality analyses of disrupted core models of Three Mile Island Unit 2

Description: Three hypothetical disrupted core models were analyzed for the President's Commission on the Accident at Three Mile Island. Soluble boron in the present configuration was assumed to be 3180 weight parts per million (wppM). Positive reactivity effects due to fuel swelling, fuel slumping, and coolant displacement by ZrO/sub 2/ increase the cold, shutdown system multiplication factor from approximately 0.74 to 0.86. The increase in reactivity for the three models can be roughly correlated with a decrease in the borated water-to-fuel volume ratio. Each of the 39,825 pin-lattice locations was modeled explicitly in the Monte Carlo analyses of the reactor core. Parametric studies were performed with one-dimensional discrete-ordinates analyses. The report includes a benchmark critical analysis of the system at hot, zero-power startup, a description of the analytical methods used, and a comprehensive compilation of the data upon which the analytical models were based.
Date: December 1, 1979
Creator: Westfall, R.M.; West, J.T.; Whitesides, G.E. & Thomas, J.T.
Partner: UNT Libraries Government Documents Department

SCALE: A modular code system for performing standardized computer analyses for licensing evaluation. Functional modules F9--F16 -- Volume 2, Part 2, Revision 4

Description: SCALE--a modular code system for Standardized Computer Analyses Licensing Evaluation--has been developed by Oak Ridge National Laboratory at the request of the US Nuclear Regulatory Commission. The SCALE system utilizes well-established computer codes and methods within standard analysis sequences that (1) allow an input format designed for the occasional user and/or novice, (2) automate the data processing and coupling between modules, and (3) provide accurate and reliable results. System development has been directed at problem-dependent cross-section processing and analysis of criticality safety, shielding, heat transfer, and depletion/decay problems. Since the initial release of SCALE in 1980, the code system has been heavily used for evaluation of nuclear fuel facility and package designs. This revision documents Version 4.2 of the system. The manual is divided into three volumes: Volume 1--for the control module documentation, Volume 2--for functional module documentation; and Volume 3--for documentation of the data libraries and subroutine libraries. This volume discusses the following functional modules: MORSE-SGC; HEATING 7.2; KENO V.a; JUNEBUG-II; HEATPLOT-S; REGPLOT 6; PLORIGEN; and OCULAR.
Date: April 1, 1995
Creator: West, J. T.; Hoffman, T. J.; Emmett, M. B.; Childs, K. W.; Petrie, L. M.; Landers, N. F. et al.
Partner: UNT Libraries Government Documents Department