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http://dx.doi.org/10.7582/GGE.2015.18.3.097

Leveling the Gamma-ray Spectrometric Data using Baseline Survey  

Park, Yeong-Sue (Mineral Resources Research Division, KIGAM)
Rim, Hyoungrea (Mineral Resources Research Division, KIGAM)
Lim, Mutaek (Mineral Resources Research Division, KIGAM)
Shin, Young Hong (Mineral Resources Research Division, KIGAM)
Publication Information
Geophysics and Geophysical Exploration / v.18, no.3, 2015 , pp. 97-104 More about this Journal
Abstract
KIGAM has surveyed most of the Korean territory since 1982 using airborne gamma-ray spectrometry, and complete the nationwide scale map in the near future. However, since the duration of survey is too long and the conditions of survey is not consistent, the data does not have physical consistency. In addition, the window counts (count/sec) were recorded instead of potassium, uranium and thorium radioelement concentrations. Thus, the data could not be registered to the International Atomic Energy Agency (IAEA) radioelement datum. This limits the usefulness of the data and it is not possible to easily combine surveys into regional compilations or make quantitative interpretations between different survey areas. To solve these problems, we undertook a test baseline survey over Jincheon-Eumseong area, to level the different two sets of data and to map radioelement concentrations. This survey confirms to IAEA radioelement baseline. The method and procedures of data leveling prepared by this study improve the usefulness and usability of the radiometric data, and make it enable to compile the nationwide scale radioelement concentration maps.
Keywords
Baseline; Gamma-ray spectrometry; leveling; baseline;
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