Abstract
Radioactive multitracer technology was developed at the RIKEN Accelerator Research Facility about 15 years ago. It enables efficient and simultaneous tracing of a number of elements under identical experimental conditions. Since 1991, this multitracer technology has been applied to the investigations of the behaviors of various elements in chemistry, biochemistry, pharmaceutical sciences, medical sciences, nutritional sciences, agricultural sciences, and environmental sciences. Recently, a new multitracer production system, which consists of a gas-jet-coupled mutitarget system for short-lived radioactive tracers and a gas- and water-cooled target system for intense beam irradiations, has been installed on a beam line of the K540 MeV RIKEN Ring Cyclotron. In this paper, we present its principle and features with several examples of recent studies.
