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State real-time detection system of underwater nuclear reactor

A real-time detection and nuclear reactor technology, applied in the field of nuclear detection, can solve the problems of lack of monitoring means and achieve high detection accuracy, short half-life and good real-time performance

Inactive Publication Date: 2018-07-13
UNIT 92609 OF PLA
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, there is a lack of suitable monitoring means in the existing technology

Method used

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  • State real-time detection system of underwater nuclear reactor
  • State real-time detection system of underwater nuclear reactor
  • State real-time detection system of underwater nuclear reactor

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Embodiment Construction

[0028] The present invention will be described in detail below with reference to the accompanying drawings and the embodiments thereof, but the protection scope of the present invention is not limited to the scope described in the embodiments.

[0029] Principle of invention

[0030] The traditional method of measuring reactor power is to measure the neutron flux of the reactor at different stages to calculate the reactor power through the fission chamber, ionization chamber and counter tube. The principle is to measure the generation (n, p) and ( n, α) reaction, to produce recoil protons or α charged particles, through the design of nuclear electronics circuit, obtain the pulse height spectrum output by charged particles, and obtain the reactor power signal by integrating and counting it. In the underwater or ocean environment outside the reactor, charged particles such as α and β cannot pass through, and hydrogen-containing substances such as water have a strong moderating a...

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Abstract

The invention provides a state real-time detection system of an underwater nuclear reactor. The state real-time detection system of the underwater nuclear reactor comprises a gamma ray detector, photoelectric multiplication equipment, an analog-to-digital conversion device, a data acquisition module and a data analysis module. The detection system provided by the invention can be used for monitoring a reactor state in real time underwater (in an ocean environment) and tracking properties and development conditions of reactor accidents, and provide reliable data and technology supports for emergency and accident information of nuclear accidents. According to the detection system provided by the invention, the influences, caused by attenuation of an underwater environment and attenuation ofa detector pressure-resisting shell, on detection performance are small and the detection precision is small.

Description

technical field [0001] The invention relates to the technical field of nuclear detection, in particular to an underwater nuclear reactor state real-time detection system. Background technique [0002] Since the 1950s, in order to meet the needs of research work in the fields of marine geological surveying and mapping, marine radioactive pollution, and marine mineral exploration, online underwater nuclear detection technology has been developed for more than half a century. A comprehensive review of literature, related technology research has been widely used in engineering practice. Among them, D.G.Jones’ literature on the development and application of marine γ-ray measurement in 2001 is a review paper with more research materials at present; Comprehensive introduction. [0003] The most commonly used method for seawater radioactive pollution monitoring is sampling monitoring, which needs to take measures such as evaporation, concentration or filtration, and is carried ou...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G21C17/06G21C17/07
CPCG21C17/06G21C17/07Y02E30/30
Inventor 胥建国于勇叶伟城陈登科
Owner UNIT 92609 OF PLA
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