Keywords: 
• 气体喷嘴 /
• 微粒 /
• 毛细管 /
• 在线 /
• 应用

Abstract: The gas-jet recoil transport technique is developed and improved as a new rapid and effective on-line and off beam method following "rabbit" apparatus in the study of short lives nuclei. It can transport the short half-life nuclear reaction products far from high radioactive area for collection and measurement at low background area. This technique has been widely used in the researches with accelerator and reactor. It is indispensable basic experimental technology and tool applied to nuclear reaction, spectrosco-py, as well as synthesis and identification of new elements and nuclei. The basic principle, structure, design requirement and main characteristics of gas-jet system are described in this paper, especially the mechanism of gas dynamics and the effect of several parameters on the system properties are discussed. Finally, the applications of this technique in several fields such as nuclear physics, nuclear chemistry and mass-spectroscopy etc. are comprehensively represented. Several typical applications are also illustrated.