RF-bunching of relativistic 12C3+ ion beam for laser cooling experiment at the CSRe
RF-bunching of relativistic 12C3+ ion beam for laser cooling experiment at the CSRe
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DOI：
10.1088/1742-6596/583/1/012045
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发表时间：
2015-01
期刊：
影响因子：
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通讯作者：
H. Wang;W. Wen;Xinwen Ma;Zhongkui Huang;D. Zhang;M. Bussmann;D. Winters;Ye Yuan;X. Zhu;D. Zhao;R. Mao;J. Li;L. Mao;J. Yang;H. Zhao;Haisheng Xu;G. Xiao;J. Xia
中科院分区：
文献类型：
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作者：
H. Wang;W. Wen;Xinwen Ma;Zhongkui Huang;D. Zhang;M. Bussmann;D. Winters;Ye Yuan;X. Zhu;D. Zhao;R. Mao;J. Li;L. Mao;J. Yang;H. Zhao;Haisheng Xu;G. Xiao;J. Xia
为了准备即将在实验冷却器存储环（CSRe）上进行相对论性12C3+离子束激光冷却实验，在中国兰州近代物理研究所的CSRe上进行了能量为122 MeV/u的12C3+离子束测试实验。在本实验中，CSRm的主存储环用于累积和加速注入CSRe进行实验的离子束。每次进样CSRe处12C3+离子数量达到5×108个，满足实验要求。为了完成激光冷却实验，12C3+离子束分别由固定频率和扫频的正弦波形聚束。采用谐振肖特基拾音器来记录这些离子束的肖特基光谱。测试实验结果表明，CSRe上的射频聚束器和诊断系统工作良好，并且CSRe在12C3+离子束下非常稳定，因此CSRe适合激光冷却实验。
To prepare the upcoming experiment of laser cooling of relativistic 12C3+ ion beams at the experimental cooler storage ring (CSRe), a test experiment was performed with 12C3+ ion beams at an energy of 122 MeV/u on the CSRe, at the Institute of Modern Physics, Lanzhou, China. In this experiment, the main storage ring of CSRm was employed to accumulate and accelerate the ion beam which was injected into the CSRe for the experiments. The number of 12C3+ ions at the CSRe reached 5×108 for every injection, which satisfied the experimental requirement. To fulfil the laser cooling experiment, the 12C3+ ion beams were bunched by sinusoidal waveforms with fixed and sweeping frequencies, respectively. A resonant Schottky pick-up was employed to record the Schottky spectra of these ion beams. The test experimental results demonstrated that the RF-buncher and diagnostic systems at the CSRe worked well and the CSRe was very stable with 12C3+ ion beams, hereby the CSRe is suitable for laser cooling experiment.