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A device for collecting and measuring radon progeny in the air and its application method

A measuring device and radon progeny technology, which can be used in measuring devices, radiation measurement, X/γ/cosmic radiation measurement, etc. Effect

Active Publication Date: 2018-05-25
FUJIAN NORMAL UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the only way to measure radon in the air by detecting gamma rays is the method of measuring radon with activated carbon, but this method can only perform cumulative measurement, and cannot perform instantaneous or continuous measurement.

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  • A device for collecting and measuring radon progeny in the air and its application method

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Embodiment Construction

[0030] like figure 1 As shown, a radon daughter collection and measurement device in the air includes a pure water pool 1, a radon daughter collection room 5, a radon daughter measurement room 10, a PC acquisition card 14 and a PC terminal control measurement device 13;

[0031] The pure water pool 1 provides a water source for the radon daughter collection chamber 5, and the water in the pure water pool 1 is introduced into the radon daughter collection chamber through the first water diversion pipe 3 through the water pump E, and the first water diversion pipe 3 is provided with a first valve A;

[0032] The radon daughter collection chamber 5 is provided with a nozzle 7, an air inlet 9, an air outlet 8 and a water outlet 6, and the nozzle 7 is arranged on the top of the radon daughter collection chamber 5 and is connected with the water pump E, and the nozzle 7 produces a large amount of small The water droplets are ejected to wash away the radon progeny in the air of the ...

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Abstract

The invention relates to a device for collecting and measuring radon daughters in air and a using method thereof. The device comprises a purified water tank, a radon daughter collection chamber, a radon daughter measurement chamber, a PC (Personal Computer) acquisition card and a PC control measurement device; after the radon daughter collection chamber collects radon daughters, the radon daughters flow into the radon daughter measurement chamber as water; a probe in the radon daughter measurement chamber transmits the detected radioactive signals to the PC acquisition card; and the PC acquisition card is used for digitalizing the radioactive signals detected by the probe and then converting the digital radioactive signals into radioactive total amount or energy spectrum data for detection, analysis and processing of the PC control measurement device, thus obtaining the content of the radon daughters. The device breaks the tradition, and adopts a new radon daughter collection mode to realize instantaneous measurement and continuous measurement of the radon daughters. The device is reasonable in design and strong in practicability.

Description

technical field [0001] The invention relates to a device for collecting and measuring radon progeny in the air and a method for using the same. Background technique [0002] As a natural radiation, radon gas widely exists in the main building decoration materials such as soil, brick, cement, granite, etc. It is considered to be the second most carcinogenic factor next to smoking. The World Health Organization has listed radon as a carcinogenic One of the 19 most important substances; radon is a tracer that can indicate underground deposits, geological structures, earthquakes, etc., so radon measurement is widely used in mineral geology, hydrogeology, engineering geology, disaster geology, Environmental geology and other aspects, especially in earthquake prediction, therefore, the research on radon and its progeny measuring methods and measuring instruments has always been a hot spot in this field. [0003] At present, the only way to measure radon in the air by detecting ga...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01T1/167
CPCG01T1/167
Inventor 乐仁昌何志杰赖黎群
Owner FUJIAN NORMAL UNIV
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