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Discussion of options to increase the control drum worth in fast reactor

  • Huaping Mei EMAIL logo , Chao Chen und Taosheng Li
Veröffentlicht/Copyright: 15. März 2023
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Abstract

The control drum is usually placed in the periphery of the active zone of the reactor core, and the control drum worth is generally small. This paper discusses different schemes to improve the control drum worth by the combination of neutron reflectors and absorbers, and the design optimization of the drums under the condition that external dimensions of the drums and positions of the drums relative to the core are fixed. The results show that BeO as the reflector, B4C and Gadolinium as the neutron absorber can obtain relatively higher drum worth. In addition, the control drum worth can also be appropriately improved by using a double-layer combination of moderator material and neutron absorber material, but it cannot be effectively improved by enlarging the central angle of the neutron absorber sector.


Corresponding author: Huaping Mei, Chinese Academy of Sciences, Institute of Nuclear Energy Safety Technology, Hefei Institutes of Physical Science, Hefei 230031, China, E-mail:

Funding source: Hefei Municipal Natural Science Foundation

Award Identifier / Grant number: 2022032

Funding source: Anhui Provincial Key Research and Development Project

Award Identifier / Grant number: 2022l07020018

  1. Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.

  2. Research funding: This work is supported by Hefei Municipal Natural Science Foundation (No. 2022032), and the Anhui Provincial Key Research and Development Project (No. 2022l07020018).

  3. Conflict of interest statement: The authors declare no conflicts of interest regarding this article.

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Received: 2022-10-10
Published Online: 2023-03-15
Published in Print: 2023-06-27

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