A radioactive source positioning system and positioning method

Abstract

The invention discloses a positioning system and a positioning method for a radiation source. The positioning system comprises the components of at least two nuclear radiation detectors, a blocking plate and an information processing center. The detectors are used for a nuclear radiation number and energy of the radiation source. The blocking plate is arranged between the detectors and is used for blocking partial nuclear radiation number which is received by at least one nuclear radiation detector. The information processing center is used for reading the signal of the detector and determines direction information of the radiation source. Furthermore according to a position azimuth, the radiation source is searched through driving a trolley, an unmanned aerial vehicle, an unmanned underwater vehicle or a handheld terminal. The positioning system and the positioning method for the radiation source have advantages of low cost, high repeatability and long-term stable operation. The positioning system and the positioning method are used for determining the azimuth, thereby realizing a relatively large positioning visual field, preventing blind searching and improving radiation source searching efficiency. Simple and quick positioning process is realized. Furthermore damage caused by long-term exposure to the radiation source can be reduced.

Description

technical field [0001] The invention belongs to the technical field of nuclear radiation detection, and in particular relates to a radiation source positioning system and a positioning method. Background technique [0002] Since the discovery of radioactivity, humans have been committed to applying radiation to various aspects such as industry, agriculture, medicine, resources, environment, and military affairs, such as non-destructive testing, radiation therapy, and radiation treatment. While the radiation sources that emit rays benefit mankind, they are also very dangerous. As far as the radioactive source itself is concerned, due to its high energy, it can cause ionizing radiation, cause cell lesions or destroy cell tissues, thus causing harm to the human body. Therefore, reasonable preservation of radioactive sources is very important. When a radioactive source is lost, leaked or stolen, it is necessary to find, locate and deal with the radioactive source. [0003] In...

AI Technical Summary

Problems solved by technology

Because the detection process takes a long time, source search personnel are easily exposed to radiation from radioactive sources at close range, resulting in additional dose exposure

[0004] On the other hand, the commonly used conventional nuclear radiation detectors do not have the ability to locate the direction and can only increase the dose value, thus making it difficult to find the radioactive source

In recent years, detectors with imaging capabilities, such as coded plate imaging detectors and Compton cameras, have also been developed and utilized, but these detectors are expensive and difficult to be widely used

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