THEORETICAL AND EXPERIMENTAL STUDY ON REACTIVITY CHANGE IN REACTORS, CAUSED BY XENON POISONING

Journal Article · Tue Jan 01 04:00:00 EST 1963 · Zeitschrift fuer Angewandte Mathematik und Physik (Switzerland)

DOI:https://doi.org/10.1007/BF01589274· OSTI ID:4681866

Haelg, W; Albers, H; Doron, Z

The calculation of the reactivity amount invested in the xenon poison involves the formation of an average to be calculated for the whoie reactor, depending on a space- and time-dependent flux distribution. The relevant integrals were transformed into a form applicable for reactor operation. It is shown that the poisoning during the build-up of xenon can be expressed by an effective neutron flux. Contrary to this, the behavior of the reactivity after shut-down must be described by more than one effective parameter. Methods for the calculation of these parameters and their dependence on reactor geometry and power level are given. Finally numerical values for the research reactor DIORIT are evaluated and compared with the measured reactivity of the system. The agreement between experiment and theory is excellent, deviations being within the range of the experimental error. It is suggested to use the uniform xenon poison as a means to calibrate the total amount of reactivity of regulating devices. (auth)

• Research Organization: Technische Hochschule, Zurich
• NSA Number: NSA-17-024661
• OSTI ID: 4681866
• Journal Information: Zeitschrift fuer Angewandte Mathematik und Physik (Switzerland), Journal Name: Zeitschrift fuer Angewandte Mathematik und Physik (Switzerland) Journal Issue: 2 Vol. Vol: 14; ISSN ZAMPA
• Country of Publication: Country unknown/Code not available
• Language: German

Related Subjects

CONFIGURATION
DIFFERENTIAL EQUATIONS
DIORIT
DISTRIBUTION
ERRORS
NEUTRON FLUX
NUMERICALS
POISONING
POWER
REACTIVITY
REACTOR TECHNOLOGY
REACTORS
RESEARCH REACTORS
SHUTDOWN
STANDARDS
VARIATIONS
XENON