Radiation monitoring system

Abstract

The invention provides a radiation monitoring system. The system comprises a monitoring terminal and a monitoring center; a detector probe, an analog circuit module, an analog-to-digital conversion module, a digital multichannel analyzer and a microprocessor are arranged in the monitoring terminal, wherein the detector probe is electrically connected with the analog circuit module, the analog circuit module is electrically connected with the digital multichannel analyzer through the analog-to-digital conversion module, the digital multichannel analyzer is electrically connected with the microprocessor, and the monitoring terminal is in communication connection with the monitoring center. The monitoring system provides an effective means for occasions requiring unattended operation, radionuclide analysis and gamma dose rate online monitoring, can provide basic information for command departments to master field information of key areas in real time, evaluate radiation leakage situationdevelopment, qualitatively and quantitatively judge nuclear accident / event evolution stages and the like, and has wide applicability in the field of radiation monitoring.

Description

technical field [0001] The invention relates to the field of monitoring devices, in particular to a radiation monitoring device. Background technique [0002] Environmental radiation monitoring is the measurement of the level of radioactive pollution in the surrounding environment of the facility and the release to the environment. In a broad sense, environmental monitoring includes effluent monitoring and environmental monitoring. [0003] Environmental radiation monitoring is to monitor the environmental gamma radiation level and neutron dose equivalent rate. For facilities containing Class I and II sealed sources, the radiation environment monitoring is divided into three categories: radiation environment level investigation before use, radiation environment monitoring during use, and environmental radiation monitoring after decommissioning. [0004] At present, in the new generation of gamma spectrometer and highly sensitive gamma dose rate meter products, NaI(Tl) detec...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the technical problems that the monitoring and analysis equipment in the prior art has low monitoring sensitivity, unattended radionuclide analysis cannot be realized, and cannot be applied to occasions where gamma dose rate online monitoring works, the present invention provides a radiation monitoring system, which is used for The scintillation detector for low-range dose rate measurement and the GM counter tube for high-range dose rate measurement collect the signal, and the nuclear pulse signal output by the NaI(Tl) scintillation probe is conditioned by the analog circuit and converted from analog to digital (ADC). , the obtained digital nuclear pulse signal is sent to the digital multi-channel (DMCA) for nuclear pulse signal processing, pulse counting and amplitude spectrum synthesis, and then processed by the microprocessor (MPU) to obtain the dose rate after energy response compensation

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