Published 1995 | Version v1
Journal article Metadata-only

The maximum likelihood tomography for nuclear fuel pins analysis

Creators

  • 1. Institute of Physics and Nuclear Engineering, Institute of Atomic Physics, PO Box MG-6, R-76900 Bucharest, (Romania)

Description

The maximum likelihood tomographic method is used to study the reconstruction of radioactive fission products distribution in irradiated fuel pins from a very small number of projections. The method can be used to analyse the behaviour of the nuclear fuel during the irradiation and also for the improvement of the burn-up evaluation. The performances of the method are studied using phantom data which model typical distributions observed in CANDU type fuel pins. A method of optimally stop the iterative algorithm is suggested. (author) 11 figs., 11 refs

Additional details

Publishing Information

Journal Title
Romanian Journal of Physics
Journal Volume
40
Journal Issue
8-9
Journal Page Range
p. 931-943.
ISSN
1221-146X
CODEN
RJPHEC

INIS

Country of Publication
Romania
Country of Input or Organization
Romania
INIS RN
27059926
Subject category
S22: GENERAL STUDIES OF NUCLEAR REACTORS; S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
Descriptors DEI
ALGORITHMS; ANGULAR DISTRIBUTION; BURNUP; CANDU TYPE REACTORS; EVALUATION; FISSION PRODUCTS; FUEL PINS; GAMMA RADIATION; IRRADIATION; ITERATIVE METHODS; MAXIMUM-LIKELIHOOD FIT; NUCLEAR FUELS; PHANTOMS; QUALITY FACTOR; SINGLE PHOTON EMISSION COMPUTED TOMOGRAPHY; SPATIAL DISTRIBUTION
Descriptors DEC
CALCULATION METHODS; COMPUTERIZED TOMOGRAPHY; DISTRIBUTION; ELECTROMAGNETIC RADIATION; EMISSION COMPUTED TOMOGRAPHY; ENERGY SOURCES; FUEL ELEMENTS; FUELS; HEAVY WATER MODERATED REACTORS; IONIZING RADIATIONS; ISOTOPES; MATERIALS; MOCKUP; NUMERICAL SOLUTION; POWER REACTORS; PRESSURE TUBE REACTORS; RADIATIONS; RADIOACTIVE MATERIALS; REACTOR COMPONENTS; REACTOR MATERIALS; REACTORS; STRUCTURAL MODELS; THERMAL REACTORS; TOMOGRAPHY