röntgenille

Röntgenille, also known as the Röntgen unit (R), is a unit of measurement used to quantify the amount of ionizing radiation, specifically X-rays and gamma rays, that are emitted or absorbed. It is named after Wilhelm Conrad Röntgen, the German physicist who discovered X-rays in 1895. The röntgenille is defined as the quantity of radiation that produces ions carrying one electrostatic unit of charge in one cubic centimeter of dry air under standard conditions. This unit is particularly useful in radiation protection and dosimetry, where it helps to measure and control exposure to ionizing radiation. However, the röntgenille is not commonly used in modern radiation measurements, as it has been largely superseded by the sievert (Sv) and other more precise units in the International System of Units (SI).