Chebyshev acceleration for lambda mode calculations
- COPESP, Sao Paulo (Brazil)
Coordenadoria para Projetos Especals (COPESP) has been making an effort to develop a power distribution mapping system utilizing self-powered neutron detectors. The scheme adopted to estimate the power distribution is based on an expansion of lambda modes for a given reactor state. Two-dimensional lambda modes were obtained previously with a modified version of the CITATION code. The method was based on the orthogonality properties of the lambda modes. Several modes could be obtained, but the convergence was slow because of the lack of an appropriate accelerating scheme in the CITATION code for calculating lambda modes. This work presents the acceleration scheme implemented into the CITATION code to obtain lambda modes.
- OSTI ID:
- 6671783
- Report Number(s):
- CONF-921102-; CODEN: TANSAO
- Journal Information:
- Transactions of the American Nuclear Society; (United States), Vol. 66; Conference: Joint American Nuclear Society (ANS)/European Nuclear Society (ENS) international meeting on fifty years of controlled nuclear chain reaction: past, present, and future, Chicago, IL (United States), 15-20 Nov 1992; ISSN 0003-018X
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
POWER DISTRIBUTION
TWO-DIMENSIONAL CALCULATIONS
ACCELERATION
C CODES
EIGENVALUES
NUMERICAL SOLUTION
PWR TYPE REACTORS
REACTOR KINETICS
SELF-POWERED NEUTRON DETECTORS
COMPUTER CODES
ENRICHED URANIUM REACTORS
KINETICS
MEASURING INSTRUMENTS
NEUTRON DETECTORS
POWER REACTORS
RADIATION DETECTORS
REACTORS
SELF-POWERED DETECTORS
THERMAL REACTORS
WATER COOLED REACTORS
WATER MODERATED REACTORS
220100* - Nuclear Reactor Technology- Theory & Calculation