Study of neutron sensitivity for vanadium self-powered neutron detector in nuclear reactors
Source abstract
Abstract
Vanadium self-powered neutron detectors (SPNDs) are widely used as in-core unmovable detectors in nuclear power plants to continuously carry out data monitoring of neutron flux and nuclear power. In this study, a theoretical calculation model is presented for determining the signal current and thermal neutron sensitivity of vanadium SPNDs. First, the physical characteristics and reaction mechanisms in vanadium SPNDs irradiated with neutrons were discussed thoroughly. Then, a computational approach to determine the neutron sensitivity of the vanadium SPND based on a Monte Carlo method without assumptions and approximations was introduced. Finally, in order to verify the performance of the vanadium SPND and our methodology, the calculated values were compared with experimental measurements and the previous literature. It can be found that all the results agree well with the experimental measurements and that the maximum differences do not exceed 3%, which demonstrates the reliability and effectiveness of the method and further improves the calculation accuracy.
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Research context
OpenAlex topics: Nuclear reactor physics and engineering · Nuclear Materials and Properties · Nuclear Physics and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
University of Science and Technology of China 1 , Hefei 230026, China
Institute of Nuclear Energy Safety Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences 2 , Hefei 230031, China
China Nuclear Power Technology Research Institute Co., Ltd. 3 , Shenzhen 518031, China
References (29)
Show source-provided references
1. Computational study of a chromium self-powered detector for neutron flux monitoring in the test blanket module of ITER10.1016/j.nima.2018.08.020 ↗
2. A numerical method for quantitatively analyzing the space charge effect of self-powered neutron detector10.1016/j.anucene.2022.109308 ↗
3. New calculational model for self-powered neutron detector based on Monte Carlo simulation10.1080/00223131.2014.975766 ↗
4. Vanadium detectors offer accuracy and long life
5. Numerical simulation of delayed-SPND response current in NECP-bamboo10.1016/j.anucene.2022.109438 ↗
6. Pfeiffer · 2013 · 1
7. Current compensation for material consumption of cobalt self-powered neutron detector10.1016/j.net.2019.09.010 ↗
8. Calculational model for self-powered neutron detector10.13182/nse72-a22491 ↗
9. Neutron and gamma-ray effects on self-powered in-core radiation detectors10.13182/nse74-a23434 ↗
10. Calibration of self-powered neutron detectors10.13182/nse83-a17316 ↗
11. Performance of prompt- and delayed-responding self-powered in-core neutron detectors in a pressurized water reactor10.13182/nse84-a17965 ↗
12. A Monte–Carlo calculation of the neutron sensitivity of self-powered detectors10.1109/tns.1973.4326961 ↗
13. Vermeeren · 2015 · 1
14. Vanadium, rhodium, silver and cobalt self-powered neutron detector calculations by RAST-K v2.010.1016/j.anucene.2017.09.048 ↗
15. Numerical optimization of rhodium self-powered neutron detector10.1016/j.anucene.2017.2.008 ↗
16. Construction of a prototype silver self-powered neutron detector and simulation of a developed SPND using MCNP4C code10.1007/s40995-018-0533-9 ↗
17. A Monte-Carlo simulation method for the study of self-powered neutron detectors10.1016/j.nima.2018.10.061 ↗
18. A general Monte Carlo N-particle transport code: Version 4C
19. Analysis on natural circulation capacity of the CARR10.1016/s1001-8042(07)60044-x ↗
20. Self-powered detector response to thermal and epithermal neutron flux10.13182/nse91-a23799 ↗
21. Model for calculating prompt-response self-powered neutron detectors10.13182/nse74-a23330 ↗
22. Dynamic compensation methods for self-powered neutron detectors10.13182/nse94-a19384 ↗
23. Analysis and comparison of direct inversion and Kalman filter methods for self-powered neutron detector compensation10.1016/j.nima.2020.164097 ↗
24. Analog and digital dynamic compensation techniques for delayed self-powered neutron detectors10.13182/nse90-a23765 ↗
25. Characteristics of self-powered neutron detectors used in power reactors
26. Application of prompt self-powered neutron detectors to the lead-cooled fast reactor demonstrator ALFRED: Validation of the Monte Carlo model for selected SPNDs10.1115/1.4037262 ↗
27. A study on the sensitivity of self-powered neutron detectors (SPNDs)10.1109/23.958400 ↗
28. Theoretical study of radiation induced electromotive force effects on mineral insulated cables10.1063/1.1622976 ↗
29. Development and verification of a simulation toolkit for self-powered neutron detector10.1016/j.anucene.2020.107784 ↗