On-line monitoring device for total beta and total gamma in water and calculation method for activity concentrations of total beta and total gamma in water
A technology of monitoring devices and calculation methods, applied in measuring devices, X/γ/cosmic radiation measurements, radiation measurements, etc., can solve problems such as complex, time-consuming, and difficult to distinguish specific nuclides, and achieve reasonable structural design and detection The effect of high accuracy
Active Publication Date: 2020-10-30
SUZHOU NUCLEAR POWER RES INST +2
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Problems solved by technology
[0003] The traditional total gamma measurement uses a sodium iodide detector. The energy resolution of this detector is extremely poor, and it is difficult to distinguish specific nuclides. It is necessary to distinguish specific nuclides, and sampling and analysis are required. This operation is relatively complicated and takes a long time. Need to consume a lot of manpower and material resources
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[0021] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.
[0022] Such as Figure 1 to Figure 2 As shown, an online monitoring device for total β and total γ in water, the monitoring device includes a sample pipeline g10, a sampling unit sequentially arranged on the sample pipeline g10, and a concentration unit for ion concentration of the water sample obtained by the sampling unit 1. A measuring unit for measuring the activity concentration of total β and total γ in the concentrated liquid. In addition, the monitoring device also includes a standard solution supply unit for providing a standard solution to calculate the detection efficiency of the measuring unit after the measuring unit detects.
[0023] Specifically, the measurement unit includes a vessel for holding the concentrated liquid (1L is a Marlin cup j10), a first detection mechanism for detecting the total βγ activity concentrati...
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The invention relates to an-online monitoring device for total beta and total gamma in water and a calculation method for activity concentrations of total beta and total gamma in water. The monitoringdevice comprises a sample pipeline, a sampling unit, a concentration unit and a measuring unit, wherein the sampling unit is sequentially arranged on the sample pipeline, the concentration unit is used for carrying out ion concentration on a water sample obtained by the sampling unit, the measuring unit is used for measuring activity concentrations of total beta and total gamma in concentrated liquid; the measuring unit comprises a vessel for containing the concentrated liquid, a first detecting mechanism for detecting the activity concentration of the total beta and gamma in the concentratedliquid, a second detecting mechanism for detecting the activity concentration of the total gamma in the concentrated liquid, and a data collector. The monitoring device is reasonable in structural design, high in detection accuracy, capable of achieving unattended operation through cooperative control of system programs, stable, reliable and suitable for monitoring total beta and gamma nuclides in the water.
Description
technical field [0001] The invention relates to the field of environmental detection, in particular to an online monitoring device for total beta and total gamma in water and a calculation method for activity concentrations of total beta and total gamma in water. Background technique [0002] During the operation of nuclear facilities, a large amount of β nuclides and γ nuclides will be produced, which will be released into the environment in liquid form, enter the biosphere through the ecological cycle, and then enter the human body, causing radiation damage. The national standard GB14587-2011 stipulates that "sampling monitoring and online continuous monitoring of radioactive liquid effluents from nuclear power plants are carried out." Although the liquid effluent discharge outlets of nuclear power plants have been installed with online total gamma continuous monitoring devices, due to the detection limit of this device is close to 4Bq / L, the environmental damage is still...
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Login to View More IPC IPC(8): G01T1/16G01T1/167G01T1/203G01T1/208G01T1/24
CPCG01T1/1603G01T1/167G01T1/203G01T1/208G01T1/24G01T1/244
Inventor 郭贵银姚建林陈超峰吴连生杨立涛贺毅左伟伟
Owner SUZHOU NUCLEAR POWER RES INST