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Method and device for sampling and measuring surface soil radon exhalation rate to obtain soil potential radon concentration

A technology of radon precipitation rate and surface soil, which is applied in the field of nuclear radiation detection, can solve problems such as difficulty, and achieve the effect of accurate soil potential radon concentration, sampling and measurement process and simple calculation method.

Inactive Publication Date: 2016-09-14
HENGYANG NORMAL UNIV
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Problems solved by technology

However, at present, the measurement depth of soil radon concentration is generally between 0.5-0.8m. The soil radon concentration at this depth is far lower than the soil potential radon concentration. To directly measure the soil potential radon concentration, a hole of 2-3m is required. It is difficult to directly measure

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  • Method and device for sampling and measuring surface soil radon exhalation rate to obtain soil potential radon concentration
  • Method and device for sampling and measuring surface soil radon exhalation rate to obtain soil potential radon concentration
  • Method and device for sampling and measuring surface soil radon exhalation rate to obtain soil potential radon concentration

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Embodiment Construction

[0036] A method for sampling and measuring surface soil radon exhalation rate to obtain soil potential radon concentration, which includes a sampling measurement process and a calculation process;

[0037] 1. Sampling and measurement process:

[0038] The ring cutter 1-2 on the soil cutting device 1 is threaded together with the ring cutter connector 1-1, and then the ring cutter 1-2 is all pressed into the soil to cut the soil in the natural state, so that the ring cutter 1-2 The inner ring is filled with soil 4, and the natural structure of the soil 4 is kept from being destroyed, then the ring cutter 1-2 is taken out from the soil in the natural state, the ring cutter connector is removed, the excess soil on the ring cutter 1-2 is removed, and the The soil 4 at both ends of the ring cutter 1-2 inner ring is trimmed and leveled.

[0039] After the trimming is completed, the filter membrane 5 is covered on the end of the ring cutter 1-2 that has been sampled and connected to...

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Abstract

Provided are a method and device for obtaining soil potentiality radon concentration by measuring surface soil radon precipitation rate in a sampling mode. First, soil in a natural state is cut with a soil cutting device, then the soil cutting device is taken out from the soil in the natural state, a ring knife connector on the soil cutting device is detached, surplus soil is removed by cutting, and soil at the two ends of an inner ring of a ring knife are trimmed and flattening by cutting. After trimming, a filtering film covers one end, connected with the ring knife connector, of the sampled ring knife, the ring knife and the ring knife connector are connected together through threads, then the soil cutting device, an air pump and an emanometer are connected through pipelines to form a measuring device, the measuring device is used for measuring the production rate of radon in the soil, and then soil potentiality radon concentration is obtained by computing.

Description

technical field [0001] The invention relates to a nuclear radiation detection technology, in particular to a method and a device for obtaining the potential radon concentration of the soil by sampling and measuring the exhalation rate of radon in surface soil. Background technique [0002] The potential maximum radon concentration in the soil is the soil potential radon concentration. The soil radon concentration is closely related to the indoor radon level of low-rise buildings and the radon level of underground buildings. It is necessary to measure the soil radon concentration during the site selection of construction projects and the radon prevention design of buildings. , all kinds of different geological types of soil basically have to reach the potential radon concentration level at a depth of 2m or even deeper. However, at present, the measurement depth of soil radon concentration is generally between 0.5-0.8m. The soil radon concentration at this depth is far lower t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01T1/167
Inventor 袁红志谭延亮
Owner HENGYANG NORMAL UNIV
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