CUED Publications database

The potential use of <sup>241</sup>Am as proliferation resistant burnable poison

Goyand, L and Ronen, Y and Shwageraus, E (2008) The potential use of <sup>241</sup>Am as proliferation resistant burnable poison. In: UNSPECIFIED pp. 2141-2148..

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This paper discusses the use of 141 Am as proliferation resistant burnable poison for light water reactors. Homogeneous addition of small (less than 1 %) amounts of 241 Am to the conventional LWR fuel results in significant increase in 238 Pu/Pu ratio in the discharged fuel improving its proliferation resistance. Moreover, 241 Am, admixed to the fuel, acts as burnable absorber allowing for substantial reduction in conventional reactivity control means without notable fuel cycle length penalty. This is possible due to favourable characteristics of 241 Am transmutation chain. The fuel cycle length penalty of introducing 241 Am into the core is evaluated and discussed, as well as the impact of He production in the fuel pins and degradation of reactivity feedback coefficients. Proliferation resistance and reactivity control features related to the use of 241 Am are compared to those of using 237 Np, which has also been suggested as an additive to the conventional fuel in order to improve its proliferation resistance. It was found that 241 Am admixture is more favourable than 237 Np admixture because of the smaller fuel cycle length penalty and higher burnable poison savings.

Item Type: Conference or Workshop Item (UNSPECIFIED)
Divisions: Div A > Energy
Depositing User: Cron Job
Date Deposited: 17 Jul 2017 19:15
Last Modified: 10 Aug 2017 01:36