INFLUENCE OF XENON POISONING ON THE CONTROL AND SAFETY OF HIGH FLUX REACTOS (in French)
The general laws governing the increase in xenon and iodine concentration in nuclear reactors employing thermal neutrons are given on the assumption that the neutron flux in the core is uniform. The mechanisms are shown by which the progressive xenon poisoning enables the imposition of certain rates of radioactive liberation on the controlrod insertion and withdrawal speeds. Since the progress in xenon poisoning depends on the past history of the reactor and since the search for the most rapid shut-down procedure is a question of finding an optimal solution, a certain number of parameters are evaluated that enable a definition of the shut-down procedure of high flux reactors to be stated, taking into account the progress in xenon concentration and the amount of available radioactivity. The resalts of the calculations are applied to high flux reactors of the type Siloe and Pegase. (auth)
- Research Organization:
- Centre d'Etudes Nucleaires, Saclay, France
- NSA Number:
- NSA-16-021738
- OSTI ID:
- 4827905
- Journal Information:
- J. Nuclear Energy, Pts. A & B. Reactor Sci. and Technol., Journal Name: J. Nuclear Energy, Pts. A & B. Reactor Sci. and Technol. Vol. Vol: 6
- Country of Publication:
- Country unknown/Code not available
- Language:
- French
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