Nuclear Science and Engineering / Volume 16 / Number 1 / May 1963 / Pages 39-67
Technical Paper / dx.doi.org/10.13182/NSE63-A26477
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Relative reaction rates have been measured in the fuel and moderator of a CANDU-type lattice cell and analyzed to obtain the spectrum parameters, i.e., effective neutron temperature T and epithermal index . Measurements were made with the coolant channels containing the normal heavy water and also light water and mixtures of light and heavy water at temperatures up to 280°C. An empirical formula has been derived for the effective neutron temperature in the fuel of operating power reactors with similar fuel geometries.