Röntgenabsorptiometrialla

Röntgenabsorptiometrialla is a Finnish term referring to X-ray absorptiometry. It is a quantitative analytical technique used to determine the elemental composition of a sample. The method relies on the principle that different elements absorb X-rays to varying degrees at specific wavelengths.

In X-ray absorptiometry, a beam of X-rays is passed through a sample, and the intensity of the transmitted X-rays is measured. The degree of absorption is directly related to the concentration of the elements present in the sample and their atomic numbers. By analyzing the absorption spectrum, one can identify and quantify the elements.

This technique can be used for a wide range of applications, including the analysis of materials in geology, metallurgy, environmental science, and industry. For instance, it can be employed to measure the density of bone in medical diagnostics, a technique also known as dual-energy X-ray absorptiometry (DXA). In material science, it can be used to determine the thickness and composition of thin films or coatings. The sample preparation is typically minimal, and the analysis can be performed relatively quickly. The accuracy of the results depends on factors such as the energy of the X-rays used, the sample matrix, and the calibration standards employed.