分类： 物理学 >> 核物理学 提交时间： 2023-11-25
Fen-Hai Guan
Xin-Yue Diao
Qiang-Hua Wu
Xiang-Lun Wei
He-Run Yang
Peng Ma
Zhi Qin
Yu-Hao Qin
Dong Guo
Rong-Jiang Hu
Li-Min Duan
Zhi-Gang Xiao
Yi-Jie Wang
摘要： The Compact Spectrometer for Heavy Ion Experiment (CSHINE) is under construction for the study of isospin chronology via the Hanbury Brown$-$Twiss (HBT) particle correlation function and the nuclear equation of state of asymmetrical nuclear matter. The CSHINE consists of silicon strip detector (SSD) telescopes and large-area parallel plate avalanche counters, which measure the light charged particles and fission fragments, respectively. In phase I, two SSD telescopes were used to observe 30 MeV/u $^{40}$Ar +$^{197}$Au reactions. The results presented here demonstrate that hydrogen and helium were observed with high isotopic resolution, and the HBT correlation functions of light charged particles could be constructed from the obtained data.
分类： 核科学技术 >> 核探测技术与核电子学 分类： 物理学 >> 核物理学 提交时间： 2024-12-17
Zhi-Xuan He
Pan-Jiao Shen
Jing-Yan Wang
Wen-Juan Bu
Zhou-Bo He
Zhi-Jie Li
Yuan-Sheng Yang
Xiao-Lei Chen
Chen-Gui Lu
Peng Ma
He-Run Yang
Li-Min Duan
Bi-Tao Hu
Xiang-Lun Wei
Yi Zhang
摘要： The semi-cylindrical Time Projection Chamber (scTPC) is designed to measure the angular distribution of the cross section of the intermediate-energy (3He,t) charge exchange reaction in inverse kinematics. The scTPC prototype has been constructed, consisting of a cathode, a field cage, a drift region, an amplification structure based on multi-layer thick gas electron multiplier (THGEM), and a readout plane with 886 zigzag-shaped pads. The gain uniformity of the THGEM and the drift velocity of electrons were calibrated. Then the track recognition based on the Hough transform was developed to reconstruct cosmic ray tracks and extract their position resolution. The position resolution of the secondary particle tracks from collisions between the heavy-ion beam and 3He target was also reported, with an x-resolution of 0.71 mm and a z-resolution of 0.73 mm. The scTPC is able to achieve sufficient energy resolution and spatial resolution to support the charge exchange reaction experiments in inverse kinematics.
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