Water-Moderated Cores with Boron Steel Septa at Elevated Temperatures
| Autor: | L. A. MacNaughton, G. D. Hickman, J. A. Bistline |
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| Rok vydání: | 1960 |
| Předmět: | |
| Zdroj: | Nuclear Science and Engineering. 8:381-392 |
| ISSN: | 1943-748X 0029-5639 |
| DOI: | 10.13182/nse60-a25818 |
| Popis: | A series of 15 experiments was carried out on an 8 x 30 x 32 in. core in the Pressurized Critical Assembly at KAPL. In 12 of these experiments, 0.030-in. boron stainless steel septa bisected the 8-in. dimension. These septa contained various weight per cent B/sup 10/. In the remaining three experiments, there were no boron-stainless steel septa in the core. The eigenvalues and neutron density distributions were compared with values calculated from Deutsch cross sections and "Thin Region Theory." The calculated eigenvalues were within 1% of the experimental values, with a spread of approximately 1%. For all the cores, the calculated eigenvalues were lower than the experimental values. Analyses of the neutron density distributions showed the calculated results in fairly good agreement with the experimental results. In all cases, this agreement was as good for the cores which contained the boron septa as for the ones which did not. It therefore appears that the boron was well represented by "Thin Region Theory," and that the main discrepancies between calculated and experimental values are due to the inadequacies of adapting the Beutsch scheme to these cores. (auth) |
| Databáze: | OpenAIRE |
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