Automatic mass total gamma analyzer system

Abstract

The invention belongs to the technical field of spent fuel aftertreatment. The invention particularly relates to an automatic mass total gamma analyzer system which is used for measuring gamma rays ofa radioactive sample to be measured in a sample distribution table and comprises an automatic mass total gamma analyzer provided with a pneumatic sample conveying system, and the pneumatic sample conveying system is used for conveying the sample to be measured from the sample distribution table to the automatic mass total gamma analyzer. And the automatic mass total gamma analyzer is used for obtaining and analyzing the gamma ray spectrum of the sample to be measured, outputting an analysis result of the gamma ray spectrum, and controlling the pneumatic sample conveying system to convey the sample. According to the system, the sample to be measured can be directly measured without pretreatment; the analysis process is simple, efficient and rapid; the sample to be measured can be recycled;the automatic acquisition of sample information, the automatic receiving and sending of a measurement bottle and the automatic measurement of the sample to be measured can be realized, finally, the unattended full-automatic analysis is realized, the labor intensity and the dosage of workers are greatly reduced, and the working efficiency is greatly improved.

Description

technical field [0001] The invention belongs to the technical field of spent fuel reprocessing, and in particular relates to an automatic mass total gamma analyzer system. Background technique [0002] Spent fuel, also known as irradiated nuclear fuel, is nuclear fuel that has been exposed to radiation and used, usually produced by nuclear reactors in nuclear power plants. Spent fuel reprocessing is the most critical link in the latter part of the nuclear fuel cycle, and is currently the most extensive treatment method for spent fuel discharged from nuclear reactors. Spent fuel reprocessing plants usually adopt the PUREX process, which utilizes the high extractability of U(VI) and Pu(IV) by tributyl phosphate (TBP) and the easy oxidation and reduction of Pu to realize U, The extraction and mutual separation of Pu mainly include uranium and plutonium decontamination cycle, uranium purification cycle and plutonium purification cycle. In the whole process, the total gamma mea...

AI Technical Summary

Problems solved by technology

In the whole process, the total gamma measurement is one of the most important analysis items. It has the characteristics of many analysis points and high analysis frequency. At present, the gamma counting method is generally used for measurement. The extraction and other operations are all done manually, which requires a lot of manpower and material resources. The labor intensity of the staff is high, the efficiency is low, and there is also the risk of excessive radiation doses.

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