Effective Steady-State Xenon Poisoning in Thermal Reactors

Journal Article · Sun Oct 01 04:00:00 EDT 1961 · Kernenergie (Berlin)

OSTI ID:4782839

Wenzel, P. ^[1]

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1. VEB EPkA, Berlin (Germany)

With the help of the perturbation theory, the effect of the position dependence of the thermal neutron flux and the lattice parameter in the active zone on the steady-state xenon poisoning was investigated for thermal reactors with solid fuel elements. A correction for the xenon concentration calculated in the first approximation from the mean flux is given. The correction includes the position dependence of the flux and lattice parameter and depends in a simple manner on the mean flux in the active zone. In the estimation of the critical behavior of a reactor or for the interpretation of the control system, it is safer to calculate with the corrected effective values of the xenon concentration; they deviate sharply from the uncorrected values, principally for average fluxes in the order of magnitude of 10¹³/n/cm².

• Research Organization: VEB EPkA, Berlin (Germany)
• Sponsoring Organization: USDOE National Nuclear Security Administration (NNSA), Nuclear Criticality Safety Program (NCSP); US Atomic Energy Commission (AEC)
• NSA Number: NSA-16-015798
• OSTI ID: 4782839
• Journal Information: Kernenergie (Berlin), Journal Name: Kernenergie (Berlin) Vol. 4; ISSN 0023-0642
• Country of Publication: Germany
• Language: German

Related Subjects

22 GENERAL STUDIES OF NUCLEAR REACTORS
CONTROL SYSTEMS
CRITICALITY
DIFFERENTIAL EQUATIONS
DISTRIBUTION
FUEL ELEMENTS
NEUTRON FLUX
Nuclear Criticality Safety Program (NCSP)
PERTURBATION THEORY
POISONING
REACTIVITY
REACTORS
THERMAL NEUTRONS
XENON