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Method for monitoring 16N leaking from nuclear power reactor vapor generator

A steam generator and nuclear power technology, applied in the field of nuclear power reactor radiation monitoring, can solve the problems of low sensitivity of the monitoring system, prone to false alarms, etc., and achieve the effect of solving low sensitivity and avoiding uncertain factors.

Active Publication Date: 2014-08-13
田志恒 +2
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  • Abstract
  • Description
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Problems solved by technology

[0003] The object of the present invention is to provide a kind of steam generator leaking out for nuclear power reactor 16 N monitoring method to solve the technical problems of low sensitivity of the monitoring system and prone to false alarms

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  • Method for monitoring 16N leaking from nuclear power reactor vapor generator
  • Method for monitoring 16N leaking from nuclear power reactor vapor generator
  • Method for monitoring 16N leaking from nuclear power reactor vapor generator

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Embodiment Construction

[0030] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways defined and covered by the claims.

[0031] see Figure 1 to Figure 3 , according to the present invention for nuclear power reactor steam generator leakage 16 The monitoring method of N comprises the following steps: S01, the scintillator detection device containing the gamma source leaves the scale peak of the stable gamma energy spectrum after the background is stripped, which is used to monitor the leaked gas from the steam generator of the nuclear power reactor 16 N and generating a monitoring signal; S02, processing the monitoring signal with a signal processor, and outputting a monitoring result. The use of scintillators with built-in gamma sources avoids the uncertain factors brought about by packaging process operations such as embedded sources, and solves the technical probl...

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Abstract

The invention provides a method for monitoring 16N leaking from a nuclear power reactor vapor generator. The method comprises the following steps: S01. reserving a scale peak of a stable gamma energy spectrum after a scintillant detection device internally containing a gamma source is stripped at the background, monitoring 16N leaking from the nuclear power reactor vapor generator by the scale peak and generating a monitoring signal; and S02. processing the monitoring signal by using a signal processing machine, and outputting a monitoring result. By using a scintillant internally containing the gamma source, the uncertainty factor of the scintillant caused by packaging process operations such as an embedded source can be avoided, and the technical problem that a monitoring result is influenced due to false alarm easily caused by low sensitivity of the monitoring system is solved.

Description

technical field [0001] The present invention relates to the field of radiation monitoring of nuclear power reactors, in particular, to a device for leaking out of nuclear power reactor steam generators 16 N monitoring method.. Background technique [0002] The nuclear power reactor adopts the built-in 241 The NaI(Tl) scintillator of Amα source is used as a detection device to monitor the leakage from the steam generator 16 N technology has been around for decades and is still widely used today, where the alpha source is used to stabilize 16 The gamma spectrum of N, but 241 The 3.5MeV equivalent gamma energy peak area generated by the ionization of Amα particles in the scintillator is relatively wide (about 3.0-3.7MeV, related to the embedded process). 16 The 0.2-4.5MeV energy region that N technology focuses on produces a high background count rate, and the monitoring system has low sensitivity and is prone to false alarms. The scintillator with embedded α source also h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G21C17/00
CPCG01T1/202
Inventor 田志恒
Owner 田志恒
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