Fission neutron spectrum approximation by Fourier series via generalized Chebyshev-Laguerre polynomials

Conference · Sat Dec 31 00:00:00 EST 1994

OSTI ID:68369

Fomushkin, E F ^[1]

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1. Russia Federal Nuclear Centre, Novgorod (Russian Federation)

The algorithm of neutron spectra approximation by orthogonal generalized Chebyshev-Laguerre polynomials was worked out; the weighting function is presented by gamma-distribution with arbitrary form parameter value. It is shown that the usage of 3-6 free parameters is enough for the adequate presentation of {sup 252}Cf spontaneous fission neutron spectrum in the energy range 0.001 < E < 20 MeV; viz. the form parameter alpha, equal 0.500 {+-} 0.002 and coefficients at first Chebyshev-Laguerre polynomials. The temperature T = 1.367 {+-} 0.002 MeV, being the scale parameter is determined by spectrum characteristics; i.e. by mean value and mode.

• OSTI ID: 68369
• Report Number(s): CONF-940507-Vol.1; TRN: 95:002915-0128
• Resource Relation: Conference: International conference on nuclear data for science and technology: nuclear data for the twenty-first century, Gatlinburg, TN (United States), 9-13 May 1994; Other Information: PBD: 1994; Related Information: Is Part Of Proceedings of the international conference nuclear data for science and technology. Volume 1; Dickens, J.K. [ed.]; PB: 592 p.
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
SPONTANEOUS FISSION
NEUTRON SPECTRA
CALIFORNIUM 252
FOURIER ANALYSIS
MATHEMATICAL MODELS