Value transmission method

Abstract

The invention relates to the field of radioactive activity measurement, and provides a magnitude transmission method, which comprises the following steps of: correspondingly measuring m to-be-measured sources by m measurement standard devices, acquiring the activity of the corresponding m to-be-measured sources, and acquiring the activity of the corresponding m to-be-measured sources under the condition that the measurement conditions of the same transmission standard device and the m measurement standard devices are consistent; the transmission standard device measures the same exemption reference source and to-be-measured sources corresponding to the measurement standard devices under the corresponding measurement conditions, and m reference source counting rates and m to-be-measured source counting rates are obtained; obtaining m equivalent activities according to the m to-be-measured source activities, the reference source counting rate and the to-be-measured source counting rate; and according to the m equivalent activities, determining standard reaching results of the m corresponding measurement standard devices. The exemption reference source and the transmission standard device are transmitted among a plurality of different metering standard devices, so that the standard result judgment of the plurality of different metering standard devices is realized, the limitation that the standard source or standard solution transmission is utilized for comparison is eliminated, and the radiation safety risk in the radioactive source circulation process is reduced.

Description

technical field [0001] The present application relates to the field of radioactivity measurement, and provides a method for transferring value. Background technique [0002] Comparison is an important means to ensure accurate and reliable laboratory values. In the field of radioactivity measurement, the traditional comparison method is to pass radioactive standard sources or standard solutions between laboratories, and use the measurement standard devices participating in the comparison in each laboratory to measure the same standard source or standard solution. , analyze the measurement results to determine the compliance results of each laboratory. [0003] The key to the above-mentioned traditional comparison value transfer is to use radioactive standard source or standard solution to transfer between laboratories. The radionuclides used for comparison standards, and the types of radioactive standard sources or standard solutions vary with the purpose of comparison. Su...

AI Technical Summary

Problems solved by technology

However, due to the large radiation of radioactive standard sources or standard solutions, there are certain radiation safety risks when they are transferred and circulated between laboratories.

[0004] With the continuous strengthening of radiation safety management, nuclear safety departments at all levels have very strict supervision on the circulation of radioactive standard sources or standard solutions, which need to meet the requirements of various management standards. The more difficult it is to implement, in order to ensure the accuracy and reliability of radioactivity measurement value transmission, and make radioactivity measurement more reliable in serving all aspects of the nuclear industry, it is very necessary to find a new comparison value transmission method

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