首页|Construction and performance test of the drift chambers at the target area of the External Target
Construction and performance test of the drift chambers at the target area of the External Target
Construction and performance test of the drift chambers at the target area of the External Target
The multiwire drift chambers at the target area of the External Target Facility of CSR are constructed for tracking radioactive ion beams that enter and exit the target. Two drift chambers with a sensitive area of 8 × 8 cm2 are positioned upstream of the target, while another two drift chambers with a sensitive area of 16 × 16 cm2 are placed upstream of the target. The drift chambers were tested using 350 MeV/u 78Kr beams and cocktail secondary beams. To improve drift time precision, the time walk effect is corrected by using the measured energy. The impact of δ-rays on the multiplicity and spatial resolution is assessed using beams with various atomic number and different applied voltages. The optimal voltage to minimize the impact of δ-rays is obtained. An optimal spatial resolution of 35 μm for the drift chambers is achieved.
粒子探测技术、辐射探测技术、核仪器仪表
Drift chamberTrack reconstructionSpatial resolutionRadioactive ion beamδ-ray
ONG, Prof. HOOI-JIN ,Long, Mr. Jinbiao,Li, Mr. Zhiyao,Yu, Dr. Yuhong,Tang, Dr. Shuwen,Wei, Dr. Xiaobao,Wang, Dr. Shitao,Liu, Mr. Tuoqi,Yan, Mr. Duo,jin, Mr. shuya,Xu, Dr. Xiaodong,Tu, Prof. Xiao lin,Zhang, Dr. Xueheng,Sun, Prof. Zhiyu 孙志宇,Zhang, Mr. Yongjie,Zhang, Mr. Jielei,Lu, Mr. Fenhua,SUN, Mr. Yazhou,Xu, Mr. Yingfeng,Zhang, Mr. Guoli,Fang, Ms. Fang,Wang, Mr. Zengxiang,Duan, Prof. Limin 段利敏,Wan, Mr. Linfeng,Ma, Mr. Peng,Jiang, Mr. Xuan.Construction and performance test of the drift chambers at the target area of the External Target[EB/OL].(2025-01-07)[2025-09-18].https://chinaxiv.org/abs/202501.00057.点此复制
The multiwire drift chambers at the target area of the External Target Facility of CSR are constructed for tracking radioactive ion beams that enter and exit the target. Two drift chambers with a sensitive area of 8 8 cm2 are positioned upstream of the target, while another two drift chambers with a sensitive area of 16 16 cm2 are placed upstream of the target. The drift chambers were tested using 350 MeV/u 78Kr beams and cocktail secondary beams. To improve drift time precision, the time walk effect is corrected by using the measured energy. The impact of -rays on the multiplicity and spatial resolution is assessed using beams with various atomic number and different applied voltages. The optimal voltage to minimize the impact of -rays is obtained. An optimal spatial resolution of 35 m for the drift chambers is achieved.
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