An automatic mass total gamma analyzer system

Abstract

The invention belongs to the technical field of spent fuel reprocessing, and specifically relates to an automatic mass total gamma analyzer system, which is used to measure the radioactive gamma rays of samples to be tested in a sample distribution platform, including an automatic mass gamma analyzer equipped with a pneumatic sample delivery system. The total gamma analyzer, the pneumatic sample delivery system is used to transfer the sample to be tested from the sample distribution platform to the automatic mass total gamma analyzer; the automatic mass total gamma analyzer is used to obtain and analyze the gamma ray spectrum of the test sample, And output the analysis results of the gamma ray spectrum, and also used to control the delivery of the sample by the pneumatic sample delivery system. Using the present invention, the sample to be tested can be directly measured without pretreatment; the analysis process is simple, efficient and fast; the sample to be tested can be recycled; it can realize automatic acquisition of sample information, automatic sending and receiving of running rabbit bottles, and automatic measurement of samples to be tested , and finally realize unattended fully automatic analysis, which greatly reduces the labor intensity and dose of the staff, and greatly improves the work efficiency.

Description

technical field [0001] The invention belongs to the technical field of spent fuel reprocessing, in particular 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 the nuclear reactor of a nuclear power plant. Spent fuel reprocessing is the most critical link in the latter part of the nuclear fuel cycle, and it is the most extensive treatment method for spent fuel discharged from nuclear reactors. The spent fuel reprocessing plant usually adopts the PUREX process, which utilizes the high extractability of U(VI) and Pu(IV) by tributyl phosphate (TBP) and the easy redox properties of Pu to achieve U, U, and PU. The extraction and mutual separation of Pu mainly include uranium and plutonium co-decontamination cycle, uranium purification cycle and plutonium purification cycle. In the whole process, the total gamma measure...

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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