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arXiv 1404.0945physics.acc-ph
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放射性离子的电荷增殖

Charge Breeding of Radioactive Ions

F. J. C. Wenander

摘要:

电荷增殖是一种增加离子电荷状态的技术,在许多情况下是放射性离子。在同位素分离器在线设备中产生的、并以几十keV的低动能提取的单电荷放射性离子被注入电荷增殖器中,其中电荷状态增加到Q。转化的离子或者被引导到需要高电荷离子的专用实验,或者被后加速到更高的束能量。本文介绍了产生高电荷态离子的物理过程,确定了电荷增殖器的注入和引出束流参数。给出了三种主要的电荷增殖方法的描述,即:气体射流或箔中的电子剥离;外部离子注入到电子束离子源/阱(EBIS/T)中;以及外部离子注入到电子回旋共振离子源(ECRIS)中。此外,一些预备装置的电荷繁殖和实际的光束传输方面将被涵盖。

英文摘要:

Charge breeding is a technique to increase the charge state of ions, in many cases radioactive ions. The singly charged radioactive ions, produced in an isotope separator on-line facility, and extracted with a low kinetic energy of some tens of keV, are injected into a charge breeder, where the charge state is increased to Q. The transformed ions are either directed towards a dedicated experiment requiring highly charged ions, or post-accelerated to higher beam energies. In this paper the physics processes involved in the production of highly charged ions will be introduced, and the injection and extraction beam parameters of the charge breeder defined. A description of the three main charge-breeding methods is given, namely: electron stripping in gas jet or foil; external ion injection into an electron-beam ion source/trap (EBIS/T); and external ion injection into an electron cyclotron resonance ion source (ECRIS). In addition, some preparatory devices for charge breeding and practical beam delivery aspects will be covered.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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