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气体喷嘴反冲传输技术是继“跑兔”装置之后发展和完善起来的适合于短寿命核素研究的一种快速而有效的在线脱束方法。它能够将短寿命核反应产物传输至远离高辐射区的低本底场所进行收集和测量。该技术已在加速器和反应堆上得到了广泛的应用,是一种研究核反应、核谱学和合成与鉴别新元素、新核素的一种不可缺少的基本实验技术和工具。描述了气嘴系统的结构、基本原理、设计要求以及它的主要特性,特别是对系统的气体动力学机制以及各种参数对系统特性的影响等进行了讨论。最后,综述了它在核物理、核化学以及质谱学等领域的应用情况,并且给出了几个应用的典型例子。
Gas jet recoil transmission technology is a fast and effective online method of beam de-bundling suitable for the research of short-lived nuclides developed and perfected after the “Run-Rabbit” device. It enables short-lived nuclear reaction products to be transported and collected at low background locations far away from high-radiation areas. This technique has been widely used in accelerators and reactors. It is an indispensable basic experimental technique and tool for studying nuclear reactions, nuclear spectroscopy and new elements and new nuclides for synthesis and identification. The structure, basic principle, design requirements and main features of the gas nozzle system are described. In particular, the gas dynamics of the system and the influence of various parameters on the system characteristics are discussed. Finally, its application in the field of nuclear physics, nuclear chemistry and mass spectrometry is reviewed, and some typical examples are given.