Published December 1, 1971 | Version v1
Miscellaneous Metadata-only

EXPANDA-6, 1-D Neutron Diffusion in Slab, Cylindrical, Spherical Geometry from JAERI Fast-Set with PuO2 UO2 Mixture

Creators

  • 1. JAERI, Tokai-mura, Naka-gun, Ibaraki-ken (Japan)

Description

1 - Nature of physical problem solved: EXPANDA-6 solves the one-dimensional diffusion equation in slab, cylinder or spherical geometry. It calculates effective cross sections, which will be used as the coefficients of the equation, from the library data of JAERI- Fast set with 25-group structure. The criticality adjustment can be done by the usual concentration search together with an optional search by changing concentration of PUO2 in the PUO2-UO2 mixture. 2 - Method of solution: The central difference approximation is adopted for the differential coefficients. The three points difference equation is solved by the ordinary set of two points recurrence formulae

Availability note (English)

Available on-line: http://www.nea.fr/abs/html/nea-0313.html

Additional details

Identifiers

URL
http://www.nea.fr/abs/html/nea-0313.html;

Publishing Information

Imprint Pagination
[html]

INIS

Country of Publication
Nuclear Energy Agency of the OECD (NEA)
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
40082526
Subject category
S99: GENERAL AND MISCELLANEOUS; S73: NUCLEAR PHYSICS AND RADIATION PHYSICS; S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
Resource subtype / Literary indicator
Computer Program Description, Non-conventional Literature
Descriptors DEI
APPROXIMATIONS; COMPUTER PROGRAM DOCUMENTATION; CRITICALITY; CROSS SECTIONS; CYLINDERS; CYLINDRICAL CONFIGURATION; E CODES; FAST REACTORS; GEOMETRY; JAERI; NEUTRON DIFFUSION EQUATION; NEUTRON FLUX; ONE-DIMENSIONAL CALCULATIONS; PLUTONIUM OXIDES; SLABS; SPHERES; SPHERICAL CONFIGURATION; URANIUM DIOXIDE; WEBSITES
Descriptors DEC
ACTINIDE COMPOUNDS; CALCULATION METHODS; CHALCOGENIDES; COMPUTER CODES; CONFIGURATION; DIFFERENTIAL EQUATIONS; DIFFUSION EQUATIONS; DOCUMENT TYPES; EPITHERMAL REACTORS; EQUATIONS; JAPANESE ORGANIZATIONS; MATHEMATICS; NATIONAL ORGANIZATIONS; OXIDES; OXYGEN COMPOUNDS; PARTIAL DIFFERENTIAL EQUATIONS; PLUTONIUM COMPOUNDS; RADIATION FLUX; REACTORS; TRANSURANIUM COMPOUNDS; URANIUM COMPOUNDS; URANIUM OXIDES

Optional Information

Notes
2 refs.