A measuring system for radioactive substances

Abstract

An embodiment of the present invention provides a measurement system for radioactive substances, the measurement system includes: a measurement room, the measurement room is made of shielding materials, providing a space for measuring radioactive substances to be measured; Introducing the measurement chamber to form an optical signal beam to irradiate the radioactive substance to be measured, and lead the optical signal passing through the radioactive substance to be measured out of the measurement chamber for analysis; the transmission system is arranged inside the measurement chamber, and the The radioactive substance to be detected is transported to the irradiation range of the optical signal beam. By using the above solution, a measurement system with higher security, simpler structure and more convenient operation can be obtained.

Description

technical field [0001] Embodiments of the present invention relate to a system for measuring by optical means, in particular a system for measuring radioactive substances by optical means. Background technique [0002] Different from ordinary spectrophotometric measurement, the measurement of radioactive substances produced in the spent fuel reprocessing process needs to provide a measurement space that can shield radioactivity to ensure the safety of experimenters. The maturity of optical fiber technology makes long-distance spectral analysis possible. The measurement system used for radioactive substances in the prior art usually sets the measurement space as a glove box structure, and the optical devices are set outside the glove box, and the optical signal is transmitted through the optical fiber. . [0003] A disadvantage of the glove box structure is that the space inside the box is usually relatively narrow, and the experimenter needs to use gloves to complete operat...

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Problems solved by technology

[0003] A disadvantage of the glove box structure is that the space inside the box is usually relatively narrow, and the experimenter needs to use gloves to complete operations such as opening the sample bottle to take a sample, putting the sample into a cuvette for measurement, and recovering the sample after the measurement. , Sampling device and other components occupy a lot of space in the box, which makes the operation very inconvenient

At the same time, although the optical devices are arranged outside the glove box, there are still a large number of structures exposed to the radioactive environment inside the glove box, which makes the service life of the measurement system shorter

[0004] Another disadvantage of the glove box structure is that although the shielding material of the box body isolates radioactive substances, the isolation effect of the glove part is weaker than that of the box body, especially when the glove box structure is applied to nuclear waste, exhaust When using high radioactive substances such as fuel, there is still a high risk of radioactive operation

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