Low Level Radioactivity Measurements Of ²³⁸U, ²³²Th, ⁴⁰k And ¹³⁷Cs In The Environmental And Industrial Samples By High Resolution Gamma-Ray Spectrometry

Abstract

More than 40 years after its launching, the gamma-ray spectrometry with especially high pure Germanium detectors developed in the last 30 years, is nowadays applied to measure quantitatively gamma emitting radionuclides for various research purposes and environmental problems in numerous laboratories world-wide. Since the gamma-ray spectrometry is a non-destructive and fast analytical technique and it gives the high accuracy and precision in the results, this technique is commonly used in measurements of the low level radioactivity contained various samples, e. g., rock, soil, sediments, sludge, mineral ores, cement, seramics, clays and petroleum industry. Particularly, in areas of igneous geology, the measurements of concentrations of naturally occuring U, Th series nuclides and ⁴⁰K are significant [1]. Additionaly, a need has recently arisen to find and produce materials containing especially low in radioactive promordial elements thorium, uranium and potassium [2].