The high intensity proton injector for the international accelerator Facility for Antiproton and Ion Research located at GSI-Darmstadt in Germany consists of a pulsed 2.45 GHz microwave ion source, a Low Energy Beam Transport (LEBT), and an electrostatic chopper matching the proton beam to the radio frequency quadrupole. The ion source is based on electron cyclotron resonance plasma production and it has to provide a proton beam at 95 keV energy and up to 100 mA current. The LEBT system with two short solenoids each including two magnetic steerers will transport the proton beam into the compact proton linac, accelerating it to the energy of 68 MeV and serving as the injector of the upgraded heavy ion synchrotron (SIS18). This paper describes the commissioning of the proton injector including beam characterization measurements that have been done at CEA/Saclay in France and is currently at the final commissioning stage.

中文翻译：

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反质子和离子研究设施高强度质子注入器现状

位于德国 GSI-Darmstadt 的国际反质子和离子研究加速器设施的高强度质子注入器由脉冲 2.45 GHz 微波离子源、低能束传输 (LEBT) 和与质子束匹配的静电斩波器组成射频四极杆。离子源基于电子回旋共振等离子体产生，它必须提供能量为 95 keV 和电流高达 100 mA 的质子束。LEBT 系统具有两个短螺线管，每个螺线管包括两个磁舵机，将质子束传输到紧凑型质子直线加速器中，将其加速到 68 MeV 的能量，并作为升级后的重离子同步加速器 (SIS18) 的注入器。