A device for continuous measurement of low-level radionuclides in liquid effluents

A radionuclide and effluent technology, applied in the field of continuous measurement of radionuclides, can solve problems such as limiting the volume of the container, and achieve the effects of increasing the detection volume, improving the detection lower limit, and improving the detection capability

Active Publication Date: 2022-05-17
MATERIAL INST OF CHINA ACADEMY OF ENG PHYSICS
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The present invention aims to provide a device for continuous measurement of low-level radionuclides in liquid effluents to solve the problem of the transmission of fluorescence inside the container in the prior art that limits the volume of the container

Method used

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  • A device for continuous measurement of low-level radionuclides in liquid effluents
  • A device for continuous measurement of low-level radionuclides in liquid effluents
  • A device for continuous measurement of low-level radionuclides in liquid effluents

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Embodiment

[0033] like Figure 1-3 As shown, this embodiment proposes a device for continuous measurement of low-level radionuclides in liquid effluents, including a container 10, a wave-shifting optical fiber array 20 and solid scintillation particles (not shown) disposed in the container 10 The scintillation fluorescence peak wavelength of the solid scintillation particles matches the absorption wavelength of the wave-shifting fiber in the wave-shifting fiber array 20;

[0034] The container 10 includes a detachably connected container body 11 and a side panel 12. When the container body 11 and the side panel 12 are connected, the container 10 formed is a hollow columnar structure; the container body 11 and the side panel 12 are respectively provided with There is a liquid inlet 14 and a liquid outlet 15; the two ends of the container body 11 are provided with optical fiber holes 13 with corresponding positions and equal spacing;

[0035] Each wave-shifting optical fiber of the wave-s...

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Abstract

The invention provides a device for continuous measurement of low-level radionuclides in liquid effluents, including a container, a wave-shifting optical fiber array and solid scintillation particles arranged in the container; the container includes a detachably connected container body and The side panel, when the container body and the side panel are connected, the container formed is a hollow columnar structure; the container body and the side panel are respectively provided with a liquid inlet and a liquid outlet; the two ends of the container body are provided with position corresponding and optical fiber holes with equal spacing; each wave-shifting optical fiber of the wave-shifting optical fiber array respectively penetrates into the corresponding optical fiber holes on the two ends of the container body, and makes the end faces of each wave-shifting optical fiber flush with the two ends of the container body. In the present invention, a wave-shifting optical fiber array is arranged inside the container, which is equivalent to opening up a transportation channel for the scintillation fluorescence of the solid scintillation particles inside the container, which can effectively increase the detection volume of the container and improve the detection of radionuclides in the liquid effluent by the device. lower limit.

Description

technical field [0001] The invention relates to the technical field of continuous measurement of radionuclides, in particular to a device for continuous measurement of low-level radionuclides in liquid effluents. Background technique [0002] The current mainstream design idea is to use solid scintillator particles to achieve continuous measurement of radionuclides in liquid effluents. Usually, water-insoluble scintillators such as calcium fluoride are ground to obtain tens to hundreds of microns (currently recognized that the particle The particles with the best effect within the diameter range), and then put the particles into a disc-shaped or tube-shaped transparent container, and couple photomultiplier tubes (PMT) on both sides of the disc or tube wall for coincidence measurement. [0003] In the existing design, the radionuclide in the liquid effluent deposits energy in the scintillator particles, and the scintillator generates fluorescence through the excitation-deexci...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01T1/167G01T1/20G01T1/202
CPCG01T1/167G01T1/2012G01T1/202
Inventor 李群夏斌元熊忠华任忠国许清华褚胜男
Owner MATERIAL INST OF CHINA ACADEMY OF ENG PHYSICS
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