What tasks are addressed by the use of radiological surveys?

Currently, the radioactive surveying method is the method of measuring the natural radiation effects of soil, rocks, and ores containing radioactive elements, mainly uranium, thorium, potassium, and radioactive isotopes using specialized equipment in the air, on the ground, and in boreholes and mining works to serve the basic geological investigation of minerals and mineral exploration.

The National Technical Regulation on Radioactive Exploration Methods, QCVN 59:2014/BTNMT issued together with Circular 32/2014/TT-BTNMT defines the objectives and tasks of radioactive exploration. To be specific:

- Radioactive surveying is used to address multiple tasks in basic geological investigation of minerals and mineral exploration, and environmental research based on observing and measuring the natural or artificial radiation fields of soil, rocks, and ores.- Radioactive surveying is conducted on the ground, in boreholes, in underground mines, in the air, to study and detect targets with radioactive properties of soil, rocks, and ores that differ from the surrounding environment.- This regulation applies to widely used methods in the basic geological investigation of minerals and mineral exploration, including:

- Ground gamma method;- Ground gamma spectrum method;- Low-background gamma spectrum method;- Radioactive gas measurement method;- Environmental gamma method;- Environmental radioactive gas method;- Equivalent dose determination method.

For additional regulations, see Circular 32/2014/TT-BTNMT effective from August 8, 2014.

Thu Ba

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