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arXiv physics/0008086physics.acc-ph
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新型GSI强流注入器低能束流传输系统

The Low Energy Beam Transport System of the New GSI High Current Injector

L. Dahl, P. Spaedtke

摘要:

UNILAC的高电流性能进行了改进,取代了Wideroe prestripper加速器由一个ESTO和IH型DTL。此外,两个离子源终端之一配备了MUCIS和MEVVA型的高电流源。因此,从离子源到阴极入口的LEBT的重新设计是必要的。新的LEBT于1999年初安装。调试主要采用高强度氩束进行。获得的17emA Ar+比设计强度高出6emA。新的LEBT的预期性能实现了:高电流束的全传输,沿束线的亮度保存,同位素分离的所有元素,横向相空间匹配的超导直线加速器,和宏脉冲整形。特别是,高度的空间电荷补偿被证实。

英文摘要:

The UNILAC was improved for high current performance by replacing the Wideroe prestripper accelerator by an RFQ and an IH-type DTL. In addition, one of two ion source terminals was equipped with high current sources of MUCIS- and MEVVA-type. Therefore, a redesign of the LEBT from the ion source to the RFQ entrance was necessary. The new LEBT was installed at the beginning of 1999. The commissioning was carried mainly with a high intense argon beam. The achieved 17 emA Ar+ are 6 emA above the RFQ design intensity. The expected performance of the new LEBT was achieved: full transmission for high current beams, preservation of brilliance along the beam line, isotope separation for all elements, transverse phase space matching to the RFQ linac, and macropulse shaping. In particular, the high degree of space charge compensation was confirmed.

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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