Method for reducing radioactive intensity of field work site

A technology for field work and radioactivity, which is applied in the field of reducing the radioactive intensity of field work sites, can solve the problems of inapplicability and high cost, and achieve the effects of short time consumption, low cost and strong practicability

Pending Publication Date: 2022-04-26
BEIJING RES INST OF URANIUM GEOLOGY
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Problems solved by technology

These two protection methods belong to terminal protection. For relatively fixed, long-term stay or living field work sites, front-end protection is more beneficial than terminal protection; and radioactive protection measures for permanent facilities such as nuclear power plants are costly and not applicable. at temporary venue

Method used

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  • Method for reducing radioactive intensity of field work site

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Embodiment Construction

[0028] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0029] A kind of method that the present invention provides to reduce the radioactive intensity of field work site, specifically comprises the following steps:

[0030] Step (1): Determine the distribution characteristics of the radioactive field in the field work site.

[0031] Carry out radioactive surveys within the scope of the field work site, and clarify the distribution characteristics of the radioactive field within the scope of the site. The radiation survey method selects the ground gamma total measurement to obtain the original measurement data. The measurement accuracy is 1:500, the line distance is 5m, and the point distance is 1m. precision. Using professional mapping software such as Suffer, Mapgis, Arcgis, etc., the original measurement data is subjected to Kragg interpolation and drawn into a radioactive intensity contour ve...

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Abstract

The invention belongs to the field of radioactive environment protection, and particularly relates to a method for reducing the radioactive intensity of a field work site, which comprises the following steps of: (1) determining the radioactive field distribution characteristics of the field work site; (2) physically removing high-radioactivity substances easy to treat; (3) the coarse gravel layer adsorbs radon gas and blocks alpha particles; (4) the radon gas and beta rays are blocked by the metal shielding blanket layer; and (5) the fine-grained gravel protective layer blocks gamma rays. According to the method, the radioactive radiation protection problem of a field work site in the radioactive deposit exploration or mining process is effectively solved.

Description

technical field [0001] The invention belongs to the field of radioactive environment protection, and in particular relates to a method for reducing the radioactivity intensity of field work sites. Background technique [0002] In radioactive mineral exploration activities, especially when entering the census and subsequent detailed investigation and exploration stages, including the later stage of mineral development, because the deposits / mines are generally far away from residential areas, in order to shorten the traffic time loss as much as possible, improve work efficiency, and facilitate For reasons such as water and electricity, work sites / residential camps (collectively referred to as field work sites) will be built around the deposits / mines. In many cases, due to the high radioactive environmental background or the influence of radioactive ore / dust / wastewater in mining activities, the field work site usually has high radioactivity, which is harmful to the staff, espec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G21F1/12G21F1/02G21F1/08
CPCG21F1/125G21F1/02G21F1/08
Inventor 黄志新李子颖范洪海
Owner BEIJING RES INST OF URANIUM GEOLOGY
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