Radiation resistance method and system for distributed electrothermal annealing and photothermal annealing

Abstract

The invention provides a radiation resistance method and system for distributed electrothermal annealing and photothermal annealing, including a control module, a signal light source and n high-power lasers respectively connected to the control module, and the signal light source and n An optical fusion module connected to a high-power laser, a photoelectric composite cable and a photodetector connected to the optical fusion module, an optical fiber sensor connected to the photoelectric composite cable, an acquisition card connected to the photodetector, and a photoelectric detector connected to the photoelectric composite cable. The upper computer connected with the acquisition card, and the control module is respectively connected with the upper computer and the optical fiber sensor. The invention uses electrothermal annealing and photothermal annealing to reduce and eliminate the serious deterioration of accuracy and measurement distance caused by radiation attenuation of the optical fiber sensor in a radiation environment, thereby ensuring the reliability and accuracy of the optical fiber sensor measurement.

Description

technical field [0001] The invention belongs to the field of anti-radiation technology, and in particular relates to a method and system for anti-radiation of distributed electrothermal annealing and photothermal annealing. Background technique [0002] With the vigorous development of nuclear power technology in the country, the safety of nuclear installations has become an important challenge for the construction and development of nuclear power. Due to the special working conditions of nuclear radiation, sensors are required to have decades of continuous service capability. Therefore, extremely stringent requirements are put forward for the sensor's ability to withstand harsh environments and long-term stable working ability, which has not been well resolved for a long time, and is a long-standing problem in the field of engineering testing. In order to ensure the safety and reliability of nuclear installations, many process parameters need to be monitored in real time du...

AI Technical Summary

Problems solved by technology

However, in the nuclear irradiation environment, the radiation will cause the radiation-induced damage effect of the optical fiber, and new defect centers, namely color centers, will be generated inside the optical fiber. Loss is radiation attenuation, which seriously deteriorates the measurement accuracy and measurement distance of fiber optic sensors

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