Use of Reaction Nb(n, n') Nb to Determine Neutron Spectra at Outer PV Surface of WWER-1000 Reactor

OO Gritzay; PM Rusinko; OG Vasylyeva

doi:10.1520/STP13664S

SYMPOSIA PAPER Published: 01 January 2001

STP13664S

Use of Reaction Nb(n, n') Nb to Determine Neutron Spectra at Outer PV Surface of WWER-1000 Reactor

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Among threshold reactions that are used to determine neutron field characteristics on the pressure vessel surface of the WWER-1000 reactor, the ⁹³Nb(n,n')^93mM) reaction has the greatest importance. Analysis shows that the set of experimentally obtained specific activities and the set of activities calculated using the IRDF-90 cross sections are not self-consistent. Comparative analysis of data for the ⁹³Nb(n,n')^93mNb reaction cross section, which is contained in the IRDF-90 library, and this cross section estimation on the basis of ENDF/B-VI, BROND-2 and ENSDF libraries have been performed.

Author Information

Gritzay, OO

Scientific Center “Institute for Nuclear Research”, Kyiv, Ukraine

Rusinko, PM

Scientific Center “Institute for Nuclear Research”, Kyiv, Ukraine

Vasylyeva, OG

Scientific Center “Institute for Nuclear Research”, Kyiv, Ukraine

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Details

Developed by Committee: E10

Pages: 737–744

DOI: 10.1520/STP13664S

ISBN-EB: 978-0-8031-5450-6

ISBN-13: 978-0-8031-2884-2

Use of Reaction Nb(n, n') Nb to Determine Neutron Spectra at Outer PV Surface of WWER-1000 Reactor

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