Guidelines for radioelement mapping using gamma ray spectrometry data

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Report: Guidelines for radioelement mapping using gamma ray spectrometry data

Abstract

This report gives an overview of the theoretical background to radioactivity and the gamma ray spectrometric method. This is followed by a review of the application of the method to mapping the radiation environment.

Chapter 2 gives a brief outline of the principles of radioactivity, the interaction of gamma rays with matter, instrumentation applied to the measurement of gamma rays, and the quantities and units in contemporary use in gamma ray spectrometry. This is followed by a review of the fundamentals of gamma ray spectrometry (Chapter 3), and its application to ground (Chapter 4) and airborne (Chapter 5) mapping. These chapters cover all aspects of the calibration and data processing procedures required for estimating the ground concentrations of the radioelements.

Chapter 6 describes the procedures required for the recovery of older survey data, and the “back-calibration” of these data. These are the procedures required to enable the reporting of older survey data in the correct physical units. The chapter includes a section on the merging of surveys to create regional compilations.

Chapter 7 gives an overview of data presentation and integration for mapping applications. It covers areas such as map projections, profile and map presentations, gridding, and the application of image processing techniques to the presentation of gamma ray spectrometric data. Data analysis and interpretation methodology are covered in Chapter 8. The application of gamma ray spectrometric data to mapping the natural radiation environment and man-made sources of radiation are reviewed in Chapters 9 and 10, respectively.

Author 
IAEA








Published 
International Atomic Energy Agency, Date Not Provided





DOI 
Not Provided
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Citation

IAEA. (!) . Guidelines for radioelement mapping using gamma ray spectrometry data. (!) : International Atomic Energy Agency.