An investigation of an optimal range of subcriticality for accelerator - driven systems.

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It is attempted in this paper to define an optimal range of subcriticality of ADS systems from the operational and safety points of view. To devise a representative measure of the subcriticality level, the mathematical and physical implications of the effective multiplication factor and the source multiplication factor have been reviewed. A set of criteria that bound the feasible subcriticality level is proposed in terms of the effective multiplication factor; the minimum required subcriticality is determined by the largest value of potential reactivity increase including the temperature defect and the calculation and measurement uncertainties, and the maximum allowable subcriticality level ... continued below

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Kim, Y.; Park, W. S.; Yang, W. S.; Taiwo, T. A. & Hill, R. N. July 2, 2002.

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It is attempted in this paper to define an optimal range of subcriticality of ADS systems from the operational and safety points of view. To devise a representative measure of the subcriticality level, the mathematical and physical implications of the effective multiplication factor and the source multiplication factor have been reviewed. A set of criteria that bound the feasible subcriticality level is proposed in terms of the effective multiplication factor; the minimum required subcriticality is determined by the largest value of potential reactivity increase including the temperature defect and the calculation and measurement uncertainties, and the maximum allowable subcriticality level is bounded by the system economy and the technical feasibility of the system. Within this feasible domain of subcriticality, a preliminary estimation of the optimal range of subcriticality was performed for a lead-bismuth-eutectic (LBE) cooled ADS design based on the safety and transmutation performances. The effects on the system safety of the subcriticality level were analyzed for several important transients using an integral safety analysis method, and the transmutation performance was evaluated in terms of the fuel and long-lived fission product discharge burnups.

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  • PHYSOR 2002 - ANS RPD Topical Meeting, Seoul (KR), 10/07/2002--10/10/2002

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  • Report No.: ANL/RAE/CP-108118
  • Grant Number: W-31-109-ENG-38
  • Office of Scientific & Technical Information Report Number: 803894
  • Archival Resource Key: ark:/67531/metadc741227

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  • July 2, 2002

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  • Oct. 19, 2015, 7:39 p.m.

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  • March 22, 2016, 1:44 p.m.

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Kim, Y.; Park, W. S.; Yang, W. S.; Taiwo, T. A. & Hill, R. N. An investigation of an optimal range of subcriticality for accelerator - driven systems., article, July 2, 2002; Illinois. (digital.library.unt.edu/ark:/67531/metadc741227/: accessed December 12, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.