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AbstractAbstract
[en] The unfolding spectrum capacity of SAND-II and RDMM methods was investigated using threshold detectors to determine the thermal neutron induced 235U fission spectrum. A Monte Carlo error analysis code was used to analyse the input data errors. The errors of solution uniqueness for SAND-II and the effect of the weighting function for RDMM have been discussed. The sensitivity of both methods for the structure of the unknown spectra has been tested briefly. The results showed that SAND-II and RDMM are better methods for determinating the fast neutron spectra with smooth variation. The SAND-II is more suitable for unknown spectra with simple structure
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Source
Apr 1986; 13 p; IAE--0007
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Report
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Numerical Data
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COMPARATIVE EVALUATIONS, ERRORS, FISSION SPECTRA, INTERNAL CONVERSION RADIOISOTO, ITERATIVE METHODS, LAGUERRE POLYNOMIALS, MONTE CARLO METHOD, NEUTRON ACTIVATION ANALYSIS, NUMERICAL DATA, NUMERICAL SOLUTION, SPECTRA UNFOLDING, SPONTANEOUS FISSION RADIOISOTO, THERMAL COLUMNS, THRESHOLD DETECTORS, URANIUM 235
ACTINIDE NUCLEI, ACTIVATION ANALYSIS, ALPHA DECAY RADIOISOTOPES, CHEMICAL ANALYSIS, DATA, DATA PROCESSING, EVALUATION, EVEN-ODD NUCLEI, FUNCTIONS, HEAVY NUCLEI, INFORMATION, ISOMERIC TRANSITION ISOTOPES, ISOTOPES, MEASURING INSTRUMENTS, MINUTES LIVING RADIOISOTOPES, NEUTRON DETECTORS, NONDESTRUCTIVE ANALYSIS, NUCLEI, POLYNOMIALS, RADIATION DETECTORS, RADIOISOTOPES, SPECTRA, URANIUM ISOTOPES, YEARS LIVING RADIOISOTOPES
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