一、放射性同位素的应用原理和探测原理由于原子能工业的巨大发展,生产出来的放射性同位素愈来愈多,利用它成功地解决了许多理论上和技术上的问题。根据放射性同位素的特点,在应用方面基本上可以分为两类:1.射线的利用——∝、β、γ和中子、正电子等射线。这些射线都能穿透物质,并能按一定的规律为物质吸收或散射,也能使物质的分子电离而引起化学变化以至生理变 First, the application principles of radioisotope and detection principle Due to the huge development of atomic energy industry, radioactive isotopes produced more and more, using it to successfully solve many theoretical and technical problems. According to the characteristics of radioisotopes, in the application can basically be divided into two categories: 1. The use of radiation - α, β, γ and neutrons, positrons and other rays. These rays can penetrate the material, and according to certain laws for the material absorption or scattering, but also make the material molecules caused by chemical changes and physiological changes