Review of Gas Dynamic RF-Only Funnel Technique for Low-Energy and High-Quality Ion Beam Extraction into a Vacuum

Abstract

This paper reviews the development and present status of a novel gas dynamic RF-only funnel technique for low-energy ion beam extraction into vacuum. This simple and original technique allows for the production of high-quality continuous and pulsed ion beams in a wide range of masses, which have a very small transverse and longitudinal emittance.

Keywords

• RFQ and SPIG beam cooler
• buffer gas flow
• RF-only funnel
• RF buncher
• gas dynamic and Monte Carlo ion-trajectory simulations