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arXiv 2103.12849physics.ins-dethep-ex
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GEM探测器放电概率的数值估算

Numerical estimation of discharge probability in GEM-based detectors

Prasant Kumar Rout, R. Kanishka, Jaydeep Datta, Promita Roy, Purba Bhattacharya, Supratik Mukhopadhyay, Nayana Majumdar, Sandip Sarkar

摘要:

利用轴对称流体动力学模型对GEM气体探测器的放电概率进行了数值计算。在漂移区,使用Heed和Geant 4获得的初始初级电荷配置,被发现有显着的影响,对随后的演变的检测器响应。已经进行了能量分辨率的模拟,以建立捕获实验情况的统计性质的流体动力学模型的能力。最后,单和三GEM配置暴露于α源已被模拟,以估计放电概率已与现有的实验数据进行了比较。尽管在数值模型中有简化和激烈的假设,但比较结果令人鼓舞。

英文摘要:

Discharge probability in GEM-based gaseous detectors has been numerically estimated using an axisymmetric hydrodynamic model. Initial primary charge configurations in the drift region, obtained using Heed and Geant4, are found to have significant effect on the subsequent evolution of detector response. Simulation of energy resolution has been performed to establish the capability of the hydrodynamic model to capture statistical nature of the experimental situation. Finally, single and triple GEM configurations exposed to alpha sources have been simulated to estimate discharge probability which have been compared with available experimental data. Despite the simplifying and drastic assumptions in the numerical model, the comparisons are encouraging.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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