1DB, a one-dimensional diffusion code for nuclear reactor analysis

Technical Report · Sun Sep 01 04:00:00 EDT 1991

DOI:https://doi.org/10.2172/6366280· OSTI ID:6366280

Little, Jr, W W ^[1]

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1. Pacific Northwest Lab., Richland, WA (United States)

1DB is a multipurpose, one-dimensional (plane, cylinder, sphere) diffusion theory code for use in reactor analysis. The code is designed to do the following: To compute k{sub eff} and perform criticality searches on time absorption, reactor composition, reactor dimensions, and buckling by means of either a flux or an adjoint model; to compute collapsed microscopic and macroscopic cross sections averaged over the spectrum in any specified zone; to compute resonance-shielded cross sections using data in the shielding factor format; and to compute isotopic burnup using decay chains specified by the user. All programming is in FORTRAN. Because variable dimensioning is employed, no simple restrictions on problem complexity can be stated. The number of spatial mesh points, energy groups, upscattering terms, etc. is limited only by the available memory. The source file contains about 3000 cards. 4 refs.

• Research Organization: Westinghouse Hanford Co., Richland, WA (United States)
• Sponsoring Organization: DOE; USDOE, Washington, DC (United States)
• DOE Contract Number: AC06-87RL10930
• OSTI ID: 6366280
• Report Number(s): WHC-EP-0435; ON: DE92003020
• Country of Publication: United States
• Language: English

Related Subjects

22 GENERAL STUDIES OF NUCLEAR REACTORS
220100* -- Nuclear Reactor Technology-- Theory & Calculation
99 GENERAL AND MISCELLANEOUS
990200 -- Mathematics & Computers
BURNUP
COMPUTER CODES
COMPUTER PROGRAM DOCUMENTATION
CROSS SECTIONS
DIFFUSION
MATHEMATICAL MODELS
NEUTRON FLUX
NUMBER CODES
ONE-DIMENSIONAL CALCULATIONS
PHYSICS
RADIATION FLUX
REACTOR PHYSICS
SHIELDING