使用Garfield++计算THGEM增益：解决模拟和实验数据之间的差异
THGEM gain calculations using Garfield++: Solving discrepancies between the simulation and experimental data
摘要：
厚微图案气体探测器（MPGD），即THGEM，测量和模拟增益之间的差异已被几个小组观察到。为了模拟电子雪崩和增益，社区依赖于在Garfield++中进行的计算，已知与厚MPGD的实验数据相比产生2个数量级的差异。对Ne/5%CH4、Ar/5%CH4和Ar/30%CO2混合气体的模拟结果表明，如果考虑Penning效应，Garfield++模型能够很好地描述实验数据。THGEM和GEM的激发次数比较可能导致潘宁转移，解释了GEM中观察到的不太明显的增益差异。
英文摘要：
Discrepancies between the measured and simulated gain in Thick Micropatterned gaseous detectors (MPGD), namely THGEM, have been observed by several groups. In order to simulate the electron avalanches and the gain the community relies on the calculations performed in Garfield++, known to produce differences of 2 orders of magnitude in comparison to the experimental data for thick MPGDs. In this work, simulations performed for Ne/5%CH4, Ar/5%CH4 and Ar/30%CO2 mixtures shows that Garfield++ is able to perfectly describe the experimental data if Penning effect is included in the simulation. The comparison between the number of excitations which may lead to a Penning transfer, is shown for THGEM and GEM, explaining the less pronounced gain discrepancies observed in GEM.
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