Abstract
A prototype thick-GEM-based cooling storage ring external-target experiment (CEE) time projection chamber (TPC) is constructed and tested with the pulsed ultraviolet laser beams. The results indicate that the prototype TPC has a good performance in three-dimensional track resolution. In X direction the position resolution is about 0.2 mm, and in Y direction the position resolution is about 0.5 mm. The results also determine that the energy resolution is about 5.4%, which achieve the requirements of the CEE experiment and can be used to study the nuclear state equation and the quantum chromo dynamics.
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Acknowledgments
The authors would like to thank Prof. Qian Liu from University of Chinese Academy of Sciences for his support on thick GEM production and Hai-Yun Wang from Institute of High Energy Physics, Chinese Academy of Sciences for providing equipment to measure the laser beam energy per pulse.
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This work was supported by the National Key Research and Development Program of China (Nos. 2016YFA0400502 and 2015CB856904), the National Natural Science Foundation of China (Nos. U1332129, 11475243, 11421505, 11775288 and 11405005), and the “100-talent plan” of Shanghai Institute of Applied Physics from the Chinese Academy of Sciences (Nos. Y290061011 and Y526011011).
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Huang, W., Lu, F., Li, H. et al. Laser test of the prototype of CEE time projection chamber. NUCL SCI TECH 29, 41 (2018). https://doi.org/10.1007/s41365-018-0382-4
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DOI: https://doi.org/10.1007/s41365-018-0382-4