The 1+/n+ method, based on an ECRIS charge breeder (CB) originally developed at the LPSC laboratory, is now implemented at GANIL for the production of Radioactive Ion Beams (RIBs). Prior to its installation in the middle of the low energy beam line of the SPIRAL1 facility, the 1+/n+ system CB has been modified based on the experiments performed on the CARIBU Facility at Argone National Laboratory. Later, it has been tested at the 1+/n+ LPSC test bench to validate its operation performances. Charge breeding efficiencies as well as charge breeding times have been measured for noble gases and alkali elements. The commissioning phase started at GANIL in the second half-year of 2017. It consisted of a stepwise process to test the upgrade of the SPIRAL1 facility from simple validation [operation of Charge Breeder (CB) as a stand-alone source] up to the production of the first 1+/n+ RIB. Thus, this year, a 38mK/38K RIB has been successfully delivered to a physics experiment over a period of 1 week. The yields on the physics target were in the range of ∼2-4 × 106 pps at 9 MeV/u. The target ion source system (TISS) was made of a FEBIAD ion source connected to a hot graphite target. This is the first time a RIB is accelerated with a cyclotron with the 1+/n+ method. Moreover, a production test with the FEBIAD TISS has confirmed the yields measured previously, which validates the extension of the GANIL/SPIRAL1 catalog for a number of isotopes. In parallel, R&D is being performed on new TISSs (e.g., a fast release one, using surface ionization source). Targets are also a subject of ongoing R&D for yield and release time optimization. This contribution will present the new acceleration scheme of the SPIRAL1 facility, which largely extends the palette of RIBs available for nuclear physicists. It will be compared to the ones used at similar ISOL facilities. This facility is more than a simple ISOL facility, and an overview of the new opportunities offered by the upgraded installation will be also discussed.

中文翻译：

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GANIL 的电荷育种：改进、结果以及与其他设施的比较

1+/n+ 方法基于最初在 LPSC 实验室开发的 ECRIS 电荷增殖器 (CB)，现在在 GANIL 实施，用于生产放射性离子束 (RIB)。在安装在 SPIRAL1 设施的低能束线中间之前，1+/n+ 系统 CB 已根据在 Argone 国家实验室的 CARIBU 设施上进行的实验进行了修改。后来，它在 1+/n+ LPSC 测试台上进行了测试，以验证其运行性能。已经测量了惰性气体和碱元素的电荷繁殖效率以及电荷繁殖时间。GANIL 的调试阶段于 2017 年下半年开始。它包括一个逐步的过程来测试 SPIRAL1 设施的升级，从简单的验证 [Charge Breeder (CB) 作为独立来源的操作] 到第一个 1+/n+ RIB 的生产。因此，今年，一个 38mK/38K RIB 已成功交付给物理实验，历时 1 周。在 9 MeV/u 时，物理目标的产率在 ~2-4 × 106 pps 的范围内。目标离子源系统 (TISS) 由连接到热石墨目标的 FEBIAD 离子源组成。这是第一次使用 1+/n+ 方法使用回旋加速器加速 RIB。此外，FEBIAD TISS 的生产测试证实了先前测量的产量，这验证了 GANIL/SPIRAL1 目录对许多同位素的扩展。与此同时，正在对新的 TISS（例如，快速发布的、使用表面电离源）。目标也是正在进行的产量和发布时间优化研发的主题。这一贡献将展示 SPIRAL1 设施的新加速方案，该方案在很大程度上扩展了核物理学家可用的 RIB 调色板。它将与在类似 ISOL 设施中使用的那些进行比较。该设施不仅仅是一个简单的 ISOL 设施，还将讨论升级安装提供的新机会的概述。