With the development of the circular collider, it is necessary to make accurate physics experimental measurements of particle properties at higher luminosity Z pole. Micro-pattern gaseous detectors (MPGDs), which contain gaseous electron multiplier (GEM) and micro-mesh gaseous structures (Micromegas), have excellent potential for development as the readout devices of the time projection chamber (TPC) tracker detector. To meet the updated physics requirements of the high luminosity Z from the preliminary concept design report (preCDR) to concept design report (CDR) at the circular electron–positron collider (CEPC). In this paper, the space charge distortion of the TPC detector is simulated with the CEPC beam structure. Using the multi-physics simulation software package, the distribution of ion estimated by Geant4 is used as the input for the differential equation, and the relationship between the ion density distribution and electric field in the detector chamber is simulated. These simulation results show that the maximum deviation for Higgs 𝒪(25μm) meets the performance requirements in CEPC TPC detector at the high luminosity Z pole, while it is still a considerable challenge for Z pole, with the maximum deviation 𝒪(> 100μm). According to the previous developments, the cascaded structure of GEM and Micromegas detector has been measured. The new considerations of the detector’s requirements were given, the gain needs to be reached to about 2000 with IBF ×Gain under 0.1, and IBF means the ions back flow ratio of the detector. The pixel TPC is a potential option to replace the traditional MPGDs with the low gain, low occupancy, and outstanding pattern recognition. Finally, some update parameters and experiments results were compared.

中文翻译：

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圆形对撞机高光度Z极TPC探测器可行性研究

随着圆形对撞机的发展，需要对更高光度下的粒子性质进行精确的物理实验测量Z极。包含气体电子倍增器（GEM）和微网状气体结构（Micromegas）的微图案气体探测器（MPGD）作为时间投影室（TPC）跟踪探测器的读出装置具有极好的发展潜力。满足高光度的更新物理要求Z从初步概念设计报告 (preCDR) 到圆形电子正电子对撞机 (CEPC) 的概念设计报告 (CDR)。本文采用 CEPC 光束结构模拟了 TPC 探测器的空间电荷畸变。利用多物理场仿真软件包，将Geant4估计的离子分布作为微分方程的输入，模拟了离子密度分布与探测器腔内电场的关系。这些模拟结果表明，希格斯粒子的最大偏差𝒪(25μ米)满足 CEPC TPC 探测器在高亮度下的性能要求Z杆，虽然它仍然是一个相当大的挑战Z极点，最大偏差𝒪(> 100μ米). 根据前人的进展，已经对GEM和Micromegas探测器的级联结构进行了测量。给出了探测器要求的新考虑，IBF增益需要达到2000左右 ×增益低于0.1，IBF为检测器的离子回流比。像素 TPC 是替代传统 MPGD 的潜在选择，具有低增益、低占用率和出色的模式识别能力。最后，比较了一些更新参数和实验结果。