Muon imaging method and vehicle-mounted radioactive material monitoring system

Abstract

The invention provides a muon imaging method and a vehicle-mounted radioactive material monitoring system. The muon imaging method is characterized by comprising the following steps: S1, track reconstruction algorithm is used for carrying out reconstruction on muon angle measurement data, and an initial reconstruction image f0 is obtained; S2, the initial reconstruction image f0 serves as an initial value, algebraic reconstruction algorithm is used for iteration, and a reconstruction image fART is obtained; S3, several times of minimal total variation are carried out on the fART to obtain an image fART-TV; S4, the second step and the third step are repeated until a reconstruction image ft which can meet the preset quality can be obtained; and S5, the algebraic reconstruction algorithm is used for carrying out iteration on the ft and a final reconstruction image ffinal is obtained. Thus, radioactive monitoring can be carried out in real time, state changes of radioactive waste material in the transportation process can be particularly monitored, and thus hidden risks during the transportation process of the radioactive waste material can be reduced.

Description

technical field [0001] The invention relates to the field of nuclear safety detection, in particular to a muon imaging method and a vehicle-mounted radioactive material monitoring system. Background technique [0002] In recent years, with the vigorous development of the nuclear power industry, a large amount of radioactive waste needs to be disposed of. In order to solve the problem of radioactive waste disposal, my country promulgated the "Guidelines for the Research and Development Planning of Radioactive Waste Geological Disposal" in February 2006, which first proposed the plan to build a radioactive waste geological disposal warehouse in the middle of this century, and initially selected it in July 2011. The preferred pre-selection area for the radioactive waste repository located in Northwest Gansu. [0003] However, almost all the nuclear power plants currently in service and planned to be built in my country are distributed along the southeast coast, and are far away...

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Problems solved by technology

[0003] However, almost all the nuclear power plants currently in service and planned to be built in my country are distributed along the southeast coast, and are far away from the northwest inland repository. The terrain and climate changes are complicated during transportation, and the transportation vehicles will inevitably produce bumps and vibrations. Therefore, It is very important to ensure the safety of radioactive materials

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