标题： Krypton-CO2混合气体中100微米厚GEM的增益特性 显示英文标题

标题： Gain characteristics of a 100 micrometer thick GEM in Krypton-CO2 mixtures

摘要： 微结构气体探测器（MPGD）的操作被评估，该探测器由两个非标准的气体电子倍增器（GEM）组成，这些GEM由100微米厚的聚酰亚胺薄膜制成。在纯氪气和氪气-二氧化碳混合物中进行了评估。 最终的雪崩电荷在二维条形读出系统中收集，为整个检测系统提供了10x10平方厘米的有效面积。 对于每种混合物，有效增益和能量分辨率作为漂移、转移和感应区域中电场的函数进行了测量。 使用来自55Fe放射性源（5.9 keV）的X射线，在稳定的条件下，纯氪气中实现了接近104的增益和22%（FWHM）的能量分辨率，表明该实验装置在后续成像研究中的潜力。 显示英文摘要

摘要： The operation of a Micropattern Gaseous Detector (MPGD) comprising a cascade of two non-standard Gas Electron Multipliers (GEM) made from a 100 micrometer kapton foil was evaluated in pure krypton and in krypton-CO2 mixtures. The final avalanche charge was collected in a 2D strip readout, providing an active area of 10x10 cm2 for the entire detection system. For each mixture, the effective gain and energy resolution were measured as a function of the electric field in the drift, transfer and induction regions. Using X-rays from a 55Fe radioactive source (5.9 keV), gains close to 104 and energy resolution of 22% (FWHM) were achieved in pure krypton under stable conditions, showing the potential of the experimental setup for the following imaging studies.