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arXiv · 1304.0522

Preliminary Study on the RF tuning of CSNS DTL

Xuejun Yin·Ahong Li·Yongchuang Xiao·Qiang Chen·Huachang Liu·Keyun Gong·Shinan Fu
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Abstract

In the R&D of the CSNS Drift Tube Linac (DTL), the first unit tank with 28 drift tubes has been developed. The axial accelerating field is ramped from 2.2MV/m to 3.1MV/m in this tank. The required field flatness is less than 2 % with the standard deviation of 1 % for the beam dynamics. And the field stability should be less than 1% for machine stable operation. After the successful alignment, the RF tuning was carried out focusing on the field profile measurement. Four slug tuners and 11 post couplers were applied in this procedure. The ramped filed and required stability had been achieved by fine adjustment of the slug tuners and post couplers. In this paper, the preliminary tuning results are presented and discussed.

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Xuejun Yin, Ahong Li, Yongchuang Xiao, Qiang Chen, Huachang Liu, Keyun Gong, Shinan Fu. 2013-04-02. Preliminary Study on the RF tuning of CSNS DTL. https://doi.org/10.1088/1674-1137%2F38%2F2%2F027002

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