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Research Paper | Physics Science | Iraq | Volume 3 Issue 11, November 2014 | Popularity: 6.1 / 10

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Calculation of the Amounts of Fission Products (85Kr,129I,137Cs) in Pressurized Water Reactors (PWR)

Ali. K. Hasan, Najim. A. Askouri, Haidar. M. Talib

Abstract: The fission process of uranium-235 nucleus, produces fission products such as (85Kr, 129I, 137Cs) as the most important products. The risks of these products on the reactor safety and the environment are important the quantities of these products depend on the fission rate inside the nuclear fuel; ie, on their yields. Uranium dioxide ceramics UO2 are widely used in pressurized water reactors (PWR). The calculations were obtained need by using (MATLB R2011b), through calculating the effects of thermal power, neutrons flux, cooling water temperature. It was found that the quantities of fission products increased with thermal power and neutrons flux. The increase of coolant temperature led to decrease of the amounts of fission products.

Keywords: fission, products, 85Kr, 129I, 137Cs

Edition: Volume 3 Issue 11, November 2014

Pages: 334 - 337

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