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Method for carrying out neutron detector on-pile test verification by utilizing standard detector

A technology for standard detectors and neutron detectors, which can be used in reactors, nuclear reactor monitoring, nuclear power generation, etc., and can solve problems such as unrealized applications.

Inactive Publication Date: 2020-11-13
SHANGHAI NUCLEAR ENG RES & DESIGN INST CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the test method of using standard detectors to verify the production and development of self-sufficient detectors has not yet been applied in China.

Method used

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  • Method for carrying out neutron detector on-pile test verification by utilizing standard detector
  • Method for carrying out neutron detector on-pile test verification by utilizing standard detector
  • Method for carrying out neutron detector on-pile test verification by utilizing standard detector

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Embodiment

[0022] A method for performing neutron detector stack test verification using standard detectors, comprising the following steps:

[0023] Step 1: Place the standard detector in the dry-type enclosure through a reliable fixing method, and the rear end of the detector is led out through the signal line, and can be connected to the acquisition device for data collection during the test;

[0024] Step 2: Place the dry shroud in Step 1 in the tunnel of the test pile;

[0025] Step 3: Start the reactor and increase the power to the predetermined power level of the test plan, and use the established and mature reactor test calibration method to perform absolute calibration of the tunnel and standard detectors;

[0026] Step 4: Securely fix the self-powered detector elements that need to be verified by the stack test around a fixed bracket, and the rear end of the detector is led out through the signal line, and can be connected to the acquisition equipment for data collection during...

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PUM

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Abstract

The invention discloses a method for carrying out neutron detector on-pile test verification by utilizing a standard detector. The method is used for carrying out on-pile test verification and calibration on research, development, production and supply products of a self-powered detector in a reliable and credible manner, and can be applied to calibration and test verification of the self-powereddetector for reactor core instrument systems of most nuclear power stations.

Description

technical field [0001] The invention relates to the technical field of on-stack test of neutron detectors in nuclear power plant cores, in particular to a method for verifying on-stack tests of neutron detectors by using standard detectors. Background technique [0002] The core instrumentation system is a key system for measuring the neutron fluence rate in the core during the operation of the reactor. During the normal operation of a nuclear power plant, the reactor pressure vessel is a harsh environment of high temperature, high pressure and high radiation. When the operating power of the reactor is above 20% of the rated power, it is necessary to use the core instrumentation system to continuously monitor the current neutron fluence rate value, remind the operator of the reactor safety margin, and control the reactivity accordingly. [0003] The in-core instrumentation bushing assembly (IITA) is used for the in-core instrumentation system. The core instrumentation casi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G21C17/06
CPCG21C17/06Y02E30/30
Inventor 匡红波毕光文薛泓元卜江涛费敬然吴方亮应珠微陈海生
Owner SHANGHAI NUCLEAR ENG RES & DESIGN INST CO LTD