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Calculation of Critical Experiment Parameters for the High Flux Isotope Reactor

Year: 2025

Type: article

Abstract: Six critical experiments were performed shortly before the initial ascension to power of the High Flux Isotope Reactor (HFIR). Critical configurations were determined at various control rod positions by varying the soluble boron content in the light water coolant. Calculated k-effective was 2% high at beginning-of-life (BOL) typical conditions but was 1.0 at end-of-life (EOL) typical conditions. Axially averaged power distributions for a given radial location were frequently within experimental error. At specific r,z locations with the core, the calculated power densities were significantly different from the experimentally derived values. A reassessment of the foil activation data seems desirable.

Source: OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information)

Author: Primm, III, R. T. [Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)]

Institution: Oak Ridge National Laboratory

Language: English

Topic: Nuclear reactor physics and engineering

Subfield: Aerospace Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W4407763984

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Related to: 10