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Front. Energy Res. | doi: 10.3389/fenrg.2019.00067

Design of the Container for the Sampling and Detection Monitoring System of N-13 in Pressurized Water Reactor Primary Loop Water Leakage Based on the Coincidence Method

 ZHAO YUE1*, ZHOU J. Liang1 and QU G. Pu1
  • 1University of South China, China

The N-13 coincidence method is an effective approach for monitoring the primary loop leakage in pressurized water reactors. The high coincidence efficiency and low background are crucial to achieving a lower limit of measurement for such a monitoring system. In this paper, we proposed four types of geometric designs of the sampling composing NaI(TI) detector. For varying container volumes (V), the detection efficiency (ε) of these containers was investigated through the Geant4 simulation and experimental measurement. The value of ε•V, which is a key combined parameter, was obtained accordingly. Finally, we obtained the optimal size of the suitable sampling and detection container for the coincidence method.

Keywords: N-13, Coincidence method, Sampling container, Coincidence efficiency, simulation, GEANT4

Received: 28 Dec 2018; Accepted: 08 Jul 2019.

Edited by:

Muhammad Zubair, University of Sharjah, United Arab Emirates

Reviewed by:

Ming Tang, Los Alamos National Laboratory (DOE), United States
Ivo Kljenak, Jožef Stefan Institute (IJS), Slovenia  

Copyright: © 2019 YUE, Liang and Pu. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

* Correspondence: Dr. ZHAO YUE, University of South China, Hengyang, China, 430000089377@usc.edu.cn