Experimental characterization of the accuracy of multidetector boron meter for operational safety of reactors | Zendy

Sung Si Hyeong | Zendy; Kim Hee Reyoung | Zendy

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Experimental characterization of the accuracy of multidetector boron meter for operational safety of reactors

Author(s) -

Sung Si Hyeong,

Kim Hee Reyoung

Publication year - 2018

Publication title -

international journal of energy research

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.808

H-Index - 95

eISSN - 1099-114X

pISSN - 0363-907X

DOI - 10.1002/er.4059

Subject(s) - boron , monte carlo method , boric acid , detector , metre , accuracy and precision , nuclear engineering , materials science , neutron detection , neutron , engineering , physics , nuclear physics , optics , mathematics , statistics , astronomy , quantum mechanics

Summary The accuracy of a boron meter, which is used to measure the concentration of boric acid, is 1 of the factors affecting operational safety in nuclear reactors. The concept of using a multisensitivity detector to improve the accuracy of the boron meter is proposed, and the accuracy improvement is confirmed by Monte Carlo N‐Particle simulation. A Monte Carlo simulation using a multidetector showed a 30 times lower accuracy error (~2 ppm) than a single‐detector boron meter system (~100 ppm). In this study, a new concept of boron meter with improved accuracy is experimentally verified. Experimental verification confirmed that the accuracy was 50% higher than that of the single detector system. To improve the accuracy of the system, the detection efficiency of BF 3 detector was measured in boron concentration, source strength, and neutron irradiation time.

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