Overview of Radon Background Correction Technology for Airborne Gamma Spectrometry

Multichannel processing for airborne gamma-ray spectrometry

The conventional approach to the processing of airborne gamma-ray spectrometric data is to first sum the observed spectra over three relatively broad energy windows. These three window count rates are then processed to obtain estimates of the potassium (K), uranium (U), and thorium (Th) elemental abundances. However, multichannel spectra contain additional information on the concentrations of K...

Upgrade of Airborne Gamma Spectrometry Equipment

Daily Variations of Gamma-ray Background and Radon Concentration

The reduction of the gamma-ray background contributes to the reduction of statistical errors of low activity measurements, while reduction of time variations of the background leads to lower systematic errors, especially in measurements of activities that coexist in the background. The sources of time variation of the background in a typical measurement of low activity are daily variations of r...

Monte Carlo Simulation for Airborne Gamma Ray Spectrometry

The aerial measuring terrestrial gamma radiation from airborne platforms is a useful method for characterizing the radiation levels over large areas. Because of the advantage of Monte Carlo method, it is very suitable for simulation of gamma ray transport and interaction with media (soil, air, aircraft and detector), which offer alternative means of estimating detector response and calibration ...

Simultaneous measurements of indoor radon, radon-thoron progeny and high-resolution gamma spectrometry in Greek dwellings.

Simultaneous indoor radon, radon-thoron progeny and high-resolution in situ gamma spectrometry measurements, with portable high-purity Ge detector were performed in 26 dwellings of Thessaloniki, the second largest town of Greece, during March 2003-January 2005. The radon gas was measured with an AlphaGUARD ionisation chamber (in each of the 26 dwellings) every 10 min, for a time period between ...