Presentation Information

11:00 AM - 11:15 AM JST(2:00 AM - 2:15 AM UTC)

[3B06]Core power distribution re-construction method based on the ex-core detector with power correlation between fuel regions(2)Effect of detector uncertainty

*Yuki Nakai¹, Rei Kimura¹, satoshi wada¹ (1. TOSHIBA ESS)

Keywords:

ex-core instruments,core monitoring,SMR,small reactor

Small Modular Reactors (SMRs) are expected to be next-generation power sources, and in-core and ex-core instruments will be adopted for their monitor systems. However, the monitor systems should use only the ex-core ones in terms of maintenance-ability and long-term reliability. We are developing a reconstruction method to estimate a fuel output distribution using only ex-core instruments. Detector uncertainty dependence of the reconstruction performance is evaluated using Monte Carlo simulations. We will show the results and discuss the prospects of the reconstruction method.

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