Radioactive ion beam line in Lanzhou |
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Authors: | Wenlong Zhan Zhongyan Guo Guanhua Liu Jianrong Dang Ruirong He Sixin Zhou Quanmin Yin Yixiao Luo Yifang Wang Baowen Wei Zhiyu Sun Guoqing Xiao Jinchuan Wang Shanhong Jiang Jiaxing Li Xiangwei Meng Wansheng Zhang Lijun Qing Quanjin Wang |
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Institution: | (1) Institute of Modern Physics, Chinese Academy of Sciences, 730000 Lanzhou, China |
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Abstract: | Radioactive ion beam line in Lanzhou (RIBLL) has been constructed for the production of short-lived radioactive nuclei and
studies of exotic nuclei far from the β-stability line. It has been put into operation recently at the National Laboratory
of Heavy Ion Accelerator Lanzhou. RIBLL consists of two doubly achromatic parts with a solid acceptance ΔΩ⩾6.5 msr, momentum
acceptance Δp/p=±5% and maximum magnetic rigidityBp
max=4.2 Tm. The second part of RIBLL serving as a spectrometer gives an element resolutionZ/ΔZ>150 and mass resolutionA/ΔA>300. The polarized secondary beams can be obtained by using a swinger dipole magnet to change the incident direction of primary
projectile from 0° to 5°. The shortest lift time for secondary beams on RIBLL is less than 1 μs. First experiments were performed
with neutron rich nuclei for understanding the properties of halo nuclei and exotic nuclear reactions.
Project supported by the Chinese Academy of Sciences, the State Science and Technology Commission of China, the National Natural
Science Foundation of China (Grant No. 19675055). |
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Keywords: | radioactive ion beam line in Lanzhou radioactive nuclear beams projectile fragmentation |
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