THE XENON EFFECT ON THE STATICS OF A THERMAL REACTOR

Technical Report · Fri Mar 01 04:00:00 EST 1963

OSTI ID:4701339

Aviram, I; Pazy, A

The effect of xenon poisoning on the static reactivity of a thermal reactor is examined by four methods. Two of them, the exact and semi-exact solutions, consider the local effects of the xenon at every point of the reactor and in both, the global reactivity effect is obtained by performing the numerical integration of non-linear differential equations. In the other two, the perturbation method and the method of equivalent uniform poisoning, the xenon poisoning is originally regarded as an integrated effect with appropriate weighting functions while the reactivity change is obtained from correspondingly linearized diffusion equations. Both the exact solution and the method of equivalent uniform poisoning account for changes of the detailed configuration of the thermal flux within the equivalent cell while the other two do not. The values of the effective multiplication factor obtained by various methods are within a range of 100 pcm which is permissible in standard calculations of reactor statics. (auth)

• Research Organization: Israel. Atomic Energy Commission, Rehovoth
• NSA Number: NSA-17-026762
• OSTI ID: 4701339
• Report Number(s): IA-741
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

CONFIGURATION
DIFFERENTIAL EQUATIONS
DIFFUSION
MULTIPLICATION FACTORS
NEUTRON FLUX
NUMERICALS
POISONING
REACTIVITY
REACTOR TECHNOLOGY
REACTORS
STATISTICS
THERMAL NEUTRONS
XENON