Published November 1990 | Version v1
Report Metadata-only

Improvements in the neutron resonance treatment for cell calculations

Creators

  • 1. Comision Nacional de Energia Atomica, San Carlos de Bariloche (Argentina). Centro Atomico Bariloche

Description

A method potentially useful for calculating group parameters in complicated lattices has been developed and included in the computer codes: RMET21, for homogeneous mixtures and cylindricized pin cells; RMET22, for cluster geometry. After the presentation and validation (Ann. Nucl. Energy, Vol. 14, 11, pp 589-601, 1987), the codes have been applied to different cases. The results of applications to the study of PWR and CANDU reactors are described in the present paper. The uses of RMET21, RMET22 codes are: Test of different resonance treatments; Test of resonance cross-section data; Evaluation of effective cross-sections in the resonance region for broad energy groups to be used in fast codes. Examples using WIMS-D are given; Temperature change effects; Calculations of resonance integrals vs. background cross-sections and lambda Goldstein-Cohen factors; Effects of interaction between resonance absorbers; Sensitivity, in core calculations results due to the cell resonance treatment. The codes RMET are useful and necessary tools for research and practical applications. (author). 11 refs, 9 figs, 4 tabs

Part of:
In-core fuel management practices. Proceedings of two technical committee meetings and workshops held in Madrid, 12-15 July 1988, and Vienna, 4-7 December 1989

Additional details

Publishing Information

Imprint Title
In-core fuel management practices. Proceedings of two technical committee meetings and workshops held in Madrid, 12-15 July 1988, and Vienna, 4-7 December 1989
Imprint Pagination
438 p.
Journal Page Range
p. 14-22.
Report number
IAEA-TECDOC--567

Conference

Title
Technical committee meeting and workshop on improvements of in-core fuel management codes.
Dates
12-15 Jul 1988.
Place
Madrid (Spain).

INIS

Country of Publication
International Atomic Energy Agency (IAEA)
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
22023350
Subject category
S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
Resource subtype / Literary indicator
Conference
Descriptors DEI
CANDU TYPE REACTORS; COMPUTER CALCULATIONS; DOPPLER COEFFICIENT; GROUP CONSTANTS; PWR TYPE REACTORS; R CODES; REACTOR CORES; RESONANCE NEUTRONS
Descriptors DEC
BARYONS; COMPUTER CODES; CROSS SECTIONS; ELEMENTARY PARTICLES; ENRICHED URANIUM REACTORS; FERMIONS; HADRONS; HEAVY WATER MODERATED REACTORS; NEUTRONS; NUCLEONS; POWER REACTORS; PRESSURE TUBE REACTORS; REACTIVITY COEFFICIENTS; REACTOR COMPONENTS; REACTORS; THERMAL REACTORS; WATER COOLED REACTORS; WATER MODERATED REACTORS

Optional Information