Multifunctional marine radioactive contamination dose rate detection method and device

Abstract

The invention discloses a multifunctional marine radioactive contamination dose rate detection method and device. The method herein comprises: acquiring a pulse signal of a radioactive substance through a semiconductor and a scintillant crystal detector; filtering the signal, amplifying the filtered signal, and carrying out ADC (analog-digital conversion) to obtain a digital signal; inputting thedigital signal to an FPGA (field programmable gate array) chip, and detecting whether the input signal reaches a threshold so as to determine an applicable detector; counting wavelengths of the inputsignal through a CPU (central processing unit), and processing to obtain a current nuclide dose rate; acquiring attitudes, directions, coordinate and other information of the device herein in different positions in a same sea area through an altitude sensor, a direction sensor and a global positioning system in combination with certain motion strategies; calculating and simulating to obtain an isodose rate plane and gradient of nuclear contamination through these information and the nuclide dose rate of contamination sources; determining an azimuth of the contamination sources in an incident sea area finally according to the gradient direction. The method and device herein are suitable for quickly determining marine radioactive contamination dosage rate and a specific contamination direction.

Description

technical field [0001] The invention belongs to the technical field of nuclear radiation detection, and in particular relates to a multifunctional marine radioactive pollution dose rate detection method and device. Background technique [0002] Nuclear energy is a new type of energy, which is widely used in the field of electric power. The safe operation of nuclear power plants can not only solve the problem of electricity consumption, but also promote the development of an environment-friendly society. However, nuclear technology is a double-edged sword. Once a nuclear power plant leaks strong radiation, it will bring huge disasters to the surrounding ecological environment. For example, the Chernobyl nuclear accident in the former Soviet Union, the Three Mile Island incident in the United States, and the Fukushima nuclear accident in Japan have had a great impact on the surrounding environment, especially the impact of the Fukushima nuclear accident on the marine ecology. ...

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Problems solved by technology

[0004] Aiming at the problems existing in the prior art, the purpose of the present invention is to provide a multifunctional marine radioactive pollution dose rate detection method and device, which can detect the marine radioactive pollution dose rate and specific pollution orientation in a very short time, and solve the problem of marine radioactive pollution dose rate. Problems with Rapid Detection

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