Published September 1991 | Version v1
Report Restricted

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

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

Description

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 keff 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 formnd 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

Availability note (English)

MF available from INIS under the Report Number; OSTI as DE92003020; NTIS; INIS; US Govt. Printing Office Dep.

Files

Restricted

The record is publicly accessible, but files are restricted to users with access.

Additional details

Publishing Information

Imprint Pagination
102 p.
Report number
WHC-EP--0435

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
23031731
Subject category
S22: GENERAL STUDIES OF NUCLEAR REACTORS; S99: GENERAL AND MISCELLANEOUS;
Resource subtype / Literary indicator
Computer Program Description
Descriptors DEI
BURNUP; COMPUTER PROGRAM DOCUMENTATION; CROSS SECTIONS; DIFFUSION; MATHEMATICAL MODELS; NEUTRON FLUX; NUMBER CODES; ONE-DIMENSIONAL CALCULATIONS; REACTOR PHYSICS; SHIELDING
Descriptors DEC
COMPUTER CODES; RADIATION FLUX

Optional Information

Contract/Grant/Project number
Contract AC06-87RL10930
Funding organization
USDOE, Washington, DC (United States).