Calibration of digital wide-range neutron power measurement channel for open-pool type research reactor
| Autor: | Jong Bok Lee, Sungmoon Joo, Sang Mun Seo |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Nuclear engineering
Instrumentation Astrophysics::High Energy Astrophysical Phenomena Signal lcsh:TK9001-9401 Power (physics) Nuclear Instrumentation System Nuclear Energy and Engineering Neutron flux Research Reactor Digital Wide-Range Neutron Power Measurement Calibration Power Calibration Environmental science Neutron detection lcsh:Nuclear engineering. Atomic power Research reactor Neutron Commissioning Fission Chamber |
| Zdroj: | Nuclear Engineering and Technology, Vol 50, Iss 1, Pp 203-210 (2018) |
| ISSN: | 1738-5733 |
| Popis: | As the modernization of the nuclear instrumentation system progresses, research reactors have adopted digital wide-range neutron power measurement (DWRNPM) systems. These systems typically monitor the neutron flux across a range of over 10 decades. Because neutron detectors only measure the local neutron flux at their position, the local neutron flux must be converted to total reactor power through calibration, which involves mapping the local neutron flux level to a reference reactor power. Conventionally, the neutron power range is divided into smaller subranges because the neutron detector signal characteristics and the reference reactor power estimation methods are different for each subrange. Therefore, many factors should be considered when preparing the calibration procedure for DWRNPM channels. The main purpose of this work is to serve as a reference for performing the calibration of DWRNPM systems in research reactors. This work provides a comprehensive overview of the calibration of DWRNPM channels by describing the configuration of the DWRNPM system and by summarizing the theories of operation and the reference power estimation methods with their associated calibration procedure. The calibration procedure was actually performed during the commissioning of an open-pool type research reactor, and the results and experience are documented herein. |
| Databáze: | OpenAIRE |
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